taxonID	type	description	language	source
03B687D2FFE1FFCDFCA5FE7D20F1FE67.taxon	type_taxon	Type species: Duadicus pallidus Dallas, 1851 by monotypy	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE1FFCDFCA5FE7D20F1FE67.taxon	diagnosis	Diagnosis Duadicus is recognised by the following combination of characters: body yellow to reddish brown with contrasting markings; AI extending well beyond anterior margin of head; anterolateral margins of pronotum excavate, crenulate; posterior margin of pronotum weakly excavate medially, posterolateral angles produced; anterior third of embolium explanate; connexiva broadly exposed, banded yellow and reddish-brown; mesosternum with a weakly developed medial carina; abdominal spine very long, flat, reaching at least to posterior margin of forecoxae; and Pendergrast’s organs present on abdominal SVII.	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE1FFCDFCA5FE7D20F1FE67.taxon	description	Redescription Body length 6.67 – 7.69 (Table 1). Colouration. Body pale to medium brown. Head: medium to dark brown, with contrasting reddish brown markings. Eyes: black. Antennae: AI-AIV medium brown, sometimes AI, apex of AII and AIII with reddish tinge; AV a little darker brown. Labium: LI-LIII pale to medium brown; LIV black. Pronotum: callus yellowish to medium brown; lateral margin of pronotum translucent; base of pronotal horn medium brown, with tip black or yellowish brown. Scutellum: medium to dark brown, with reddish brown markings; pale yellow at apex. Thoracic pleura: pale to yellowish brown with reddish markings. MTG: pale to yellowish brown. Hemelytra: pale to medium brown, with reddish brown markings; membrane transparent, sometimes with brown tinge at base. Legs: coxae and femora medium brown, with reddish markings on femora; tibiae pale brown, with reddish tinge at extremities; tarsi medium brown; claws medium brown at base, black apically. Abdomen: connexiva medium brown; spine pale to medium brown; venter pale to medium brown, with reddish markings. Vestiture. Dorsum with moderate distribution of simple white decumbent setae on lateral margin of head, pronotum and corium. Antennae: with simple short decumbent pale brown setae, almost uniform length on AI; AII-AIII with moderately distributed setae; AIV-AV densely distributed setae. Labium: with few simple short semi-erect setae of almost uniform length and distribution, denser at apex of LIV. Legs: setae on femora rare; setae on tibiae and tarsi more densely distributed, spinelike setae on tibiae; apex of tarsi with few hairlike setae. Abdomen: simple short decumbent pale brown setae distributed laterally; semi-erect setae moderately distributed. Structure. Head: paraclypei slightly concave laterally, not extending beyond anteclypeus. Eyes: almost semicircular in frontal view, with medial margin straight. Antennae: AI longest segment, extending well beyond anterior margin of head; AIII and AIV subequal in length; AV shortest segment. Labium: reaching mid coxae or a little beyond; LI slightly wider than other segments; LII about as wide as LIII; LIV slightly thinner than LII; LII longest, about 2 × longer than LI; LIII slightly shorter than LII; LIV almost as long as LI. Pronotum: callus mostly rectangle, sometimes rounded; lateral margin of pronotum wavy, arcuate and upward; pronotal horns processed obviously. Scutellum: flat, width longer than length. MTG: suboval. Legs: metafemora slightly broader and longer than fore femora and mesofemora; tarsi narrow, tarsal segment I almost as long as segment II. Abdomen: connexiva posterior angles rounded; spine reaching beyond anterior margin of fore coxae, not reaching anterior margin of prosternum. Male genitalia: pygophore opening broad; two processes medially; posterodorsal rim sinuated, with a medial notch and sparse short setae; posteroventral rim concave; posterolateral angle rounded, with dense long setae; paramere ‘ L’ shaped; apex slightly upturned; vesica ‘ C’ shaped, sclerotised. Female genitalia: first gonocoxites large, platelike, posterior margins almost straight; eighth paratergite subtriangular; apices of ninth paratergites distantly removed from apices of eighth paratergites.	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE1FFCDFCA5FE7D20F1FE67.taxon	distribution	Distribution Duadicus is endemic to temperate Australia.	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE1FFCDFCA5FE7D20F1FE67.taxon	biology_ecology	Host plants There has been limited data on the host plant associations of acanthosomatids on a worldwide basis. Yamamoto et al. (2009) recorded 70 host plant species from 20 plant families for 25 of the Japanese acanthosomatid species. Cassis and Gross (2002) gave notes of known Australian known host plants, including new records for D. pallidus. In this work we record host plant records from recent survey work (Cassis et al. 2007) for both Duadicus species that demonstrate multiple occurrences with Melaleuca (see species treatments).	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE1FFCDFCA5FE7D20F1FE67.taxon	discussion	Remarks Kumar (1974) assigned Duadicus is similar to Andriscus Stål but can be readily distinguished from it by the following characters: (1) AI extends considerably beyond the anterior margin of the head and is subequal to length. In Andriscus the first antennal extends only slightly beyond the anterior margin of the head and is less than half the length of the head; (2) the lateral margins of the pronotum are sinuate and are arcuate posteriorly. In Andriscus the lateral margins of the pronotum are almost straight.	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE2FFCBFCBCFE1A2171FAF6.taxon	description	(Figs 1 a, b, 2,4) http: // zoobank. org / urn: lsid: zoobank. org: act: 55171906 - CA 3 C- 4305 - AC 5 A- 8382 CDD 91 B 4 E	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE2FFCBFCBCFE1A2171FAF6.taxon	materials_examined	Specimens examined HOLOTYPE: male, AUSTRALIA: Western Australia, poison Creek Beach, Cape Arid National Park, sea level, 33 ° 54.2484 ′ S 123 ° 21.1153 ′ E, 25 November 1999, R. T. Schuh, G. Cassis and R. Silveira (00002841) (AM). PARATYPES: 2 ♂♂, AUSTRALIA: Western Australia, 2.3 km E of Esperance on Fisheries Road, 10 m, 33 ° 48.6225 ′ S 131 ° 56.0028 ′ E, 23 November 1999, R. T. Schuh, G. Cassis and R. Silveira (00002843 - 00002844) (AM).	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE2FFCBFCBCFE1A2171FAF6.taxon	diagnosis	Diagnosis D. namyatovae is recognised by the following combination of characters: dorsum pale brown; lateral margin of pronotum weakly arcuate (Figs 1 a, 2 b), almost straight, pale brown; pronotal horns weakly projected, with apex yellowish brown; two brown spots along basal margin of scutellum (Fig. 1 a), with slightly purplish tinge; connexiva with less than one-half of segments V-VII pale brown anteriorly.	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE2FFCBFCBCFE1A2171FAF6.taxon	description	Description Male (Fig. 1 a, b). Colouration. Head: mostly medium brown, with medium brown markings dorsally; pale brown between inner margin of eye and ocelli, without markings; pale to medium brown ventrally, without markings. Eyes: black with purplish tinge anteriorly. Antennae: AI medium brown with reddish tinge; AII-AIII medium brown, with apex of AII and half of AIII reddish brown; AIV-AV brown. Labium: LI-LII pale brown; LIII medium brown; LIV black. Pronotum: anterior part medium brown and posterior part pale brown dorsally, with medium brown markings; callus pale to yellowish brown; lateral margin of pronotum pale brown; base of pronotal angle medium brown, with apex yellowish brown. Scutellum: yellowish to medium brown at base, with medium brown markings; two brown spots along basal margin, with slightly purplish tinge; black markings medially; pale yellow at apex, with minute black markings. Thoracic pleura: pale to yellowish brown with reddish markings. MTG: yellowish brown. Hemelytra: pale brown with dark markings; irregular purplish tinge along apical margin of corium; membrane almost transparent, sometimes with brown tinge at base. Legs: coxae pale brown; femora pale brown with apex medium brown; tibiae reddish brown laterally, medium brown medially; others as in generic description. Abdomen: connexiva medium brown; less than one-half of segments V – VII pale brown anteriorly, without markings; abdominal spine pale brown; venter as in generic description. Vestiture. Mostly as in generic description. Antennae: setae on AI least; AII-AIII moderate distribution, more than AI; AIV-AV mostly dense. Labium: as in generic description. Legs: uniformly pale brown; tibiae and tarsi mostly dense. Abdomen: as in generic description. Structure. Head and Eyes: as in generic description. Antennae: AI longest, much passing anterior margin of head (Figs 1 a, b, 2 a); AII slightly longer than AIII and shorter than AIV; AIV almost as 3 / 4 long as AI; AV shortest. Labium: as in generic description. Pronotum: callus almost rectangle; lateral margin of pronotum sinuate, arcuate and weakly upturned (Fig. 2 b); pronotal horns oriented laterally. Scutellum: flat, width greater than length. MTG: almost rectangular, with lateral margin rounded (Fig. 2 c). Legs: metafemora weakly broader and longer than fore- and mesofemora; tarsi narrow, tarsal segment I almost as long as segment II. Abdomen: as in generic description. Male genitalia: pygophore (Fig. 4 a) a little broader than long, with two processes mediolaterally; posterolateral angle rounded and short, situated higher than notch of posteroventral rim and dense long setae; lateral margin near apex of posterolateral angle weakly sinuated; posterodorsal rim sinuated, with a medial notch and few very short setae; paramere (Fig. 4 b) nearly ‘ L’ shaped, with angle more than 90 ° with few spine-like processes near apex, slightly upturned; apex truncate, expanded (Fig. 4 c); vesica (Fig. 4 d, e) ‘ C’shaped, strongly sclerotised; lateral conjunctival lobe with two branches dorsal, slightly sclerotised medially and united dorsally. Female. Unknown	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE2FFCBFCBCFE1A2171FAF6.taxon	distribution	Distribution All specimens of this species have been collected from two localities in Western Australia (Fig. 7).	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE2FFCBFCBCFE1A2171FAF6.taxon	biology_ecology	Host plants Specimens were collected from Melaleuca cuticularis and M. viminea (Myrtaceae) (Fig. 8 b).	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE2FFCBFCBCFE1A2171FAF6.taxon	etymology	Etymology This species is named after Anna Namyatova, who gave greatly assisted one of us (XJW) while studying in Australia.	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE2FFCBFCBCFE1A2171FAF6.taxon	discussion	Remarks D. namyatovae can be separated from D. pallidus by its shorter pronotal horns and different colouration at their apices (cf., Fig 1 a, c, e, 2 b, 3 b), and the different colour patterning of the dorsum (see Fig. 1).	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE4FFC5FCBCFA8B2668F9EF.taxon	description	(Figs 1 c – f, 3,5,6)	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE4FFC5FCBCFA8B2668F9EF.taxon	diagnosis	Diagnosis D. pallidus is recognised by the following combination of characters: dorsum medium brown; lateral margin of pronotum arcuate medially (Figs. 1 c – f, 3 b), almost transparent; pronotal horns strongly projected, with apex black and slightly upturned; two irregular spots along basal margin of scutellum, from pale to yellowish brown (Fig. 1 c); abdominal connexiva with more than one-half of segments V-VII pale brown anteriorly.	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE4FFC5FCBCFA8B2668F9EF.taxon	description	Redescription Male (Fig. 1 c, d). Colouration. Head: brown, with reddish markings dorsally; pale to medium brown between inner margin of eye and ocelli, without markings; pale brown ventrally, with few reddish markings medially; sometimes reddish markings at base of bucculae. Eyes: black, with posterior margin yellowish brown. Antennae: AI medium brown with reddish tinge; AII-AIV medium brown, sometimes AII with reddish tinge; AV darkest, dark brown. Labium: as in generic description. Pronotum: brown, with reddish markings dorsally; callus as in generic description; lateral margin of pronotum almost transparent; pronotal angle medium to dark brown, almost black, from base to apex. Scutellum: medium to dark brown, with dark brown markings; two pale to medium brown stripe along basal margin; pale yellow to brown at apex, with tiny and dark brown markings. Thoracic pleura: medium to dark brown with reddish markings. MTG: pale brown. Hemelytra: pale brown with reddish brown markings; reddish brown stripe along outer margin of corium; membrane almost transparent, sometimes with brown tinge at base. Legs: as in generic description. Abdomen: connexiva medium brown with reddish brown markings; more than 1 ∕ 2 of segments V-VII pale brown anteriorly, without markings; abdominal spine medium brown; venter pale to medium brown, with reddish markings medially and laterally. Vestiture. Mostly as in generic description. Legs: uniformly pale brown; setae on femora rare distribution; tibiae and tarsi mostly dense. Abdomen: simple short decumbent pale brown setae sparsely distributed laterally; trichobothria pale brown. Structure. Head and Eyes: as in generic description. Antennae: AI longest, strongly passing anterior margin of head (Figs 1 c, d, 3 a); AII longer than AIII; AIII as long as AIV; AV shortest. Labium: as in generic description. Pronotum: callus subrectangular, sometimes rounded; lateral margin of pronotum sinuate, arcuate and strongly upturned (Fig. 3 b); pronotal horns strongly projected dorsolaterally. Scutellum: flat, width longer than length; apex slender. MTG: suboval (Fig. 3 c). Legs and Abdomen: as in generic description. Male genitalia: pygophore (Fig. 5 a) similar to D. namyatovae but differs from lateral margin near apex of posterolateral angle not sinuated and posterolateral angle more rounded; paramere (Fig. 5 b) nearly ‘ L’ shaped, with angle almost 90 °; apex slightly upward; vesica (Fig. 5 d, e) ‘ C’ shaped sclerotised; dorsal conjunctival lobe bounding vesica, united with no branches. Female (Fig. 1 e, f). Colouration. Mostly as in male. Head: pale to medium brown between ocelli, with few reddish brown markings. Antennae: AIV dark brown, except medium brown at base. Pronotum: pronotal horns medium brown anteriorly, with reddish tinge. Scutellum: two yellowish brown stripes along basal margin. Hemelytra: medium brown at inner base. Legs: tibiae medium brown, with reddish tinge at base and apex. Abdomen: connexiva dark brown with reddish brown markings; more than one-half of segments IV-VII pale brown anteriorly; one pair of medium brown Pendergrast’s organ on 7 th segments. Vestiture. Mostly as in male. Abdomen: white short erect setae on Pendergrast’s organ. Structure. Mostly as in male. Antennae: AI longest, much passing anterior margin of head; AIV shorter than AII and longer than AIII; AV shortest. Pronotum: pronotal horns much arcuate anteriorly. Scutellum: apex much rounded. Abdomen: Pendergrast’s organ of sternite VII suboval (Fig. 3 d). Female genitalia: first gonocoxites (Fig. 6) large, plate-like, posterior margins almost straight; eighth paratergite subtriangular; apices of ninth paratergites far away from those of eighth paratergites; capsula seminalis small, membrane, with long pars intermedialis; thickenings of vaginal intima triangular; sclerotised ring apically upturned, sometimes horizontal.	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE4FFC5FCBCFA8B2668F9EF.taxon	materials_examined	Specimens examined NEW SOUTH WALES: 1 ♀, Hornsby, C. Gibbons (00002857) (AM); 1 ♀, Wynyard, G. H. Hardy (00002863) (AM); 2 ♂♂ 1 ♀, Blackheath, Jan 1934, K. K. Spence (00002853 - 00002854; 00002859) (AM); 1 ♀, Tuggerah, 1 Oct 1934, K. K. Spence (00002856) (AM); 1 ♂, Hazelbrook, NSW, Dec 1934, K. K. Spence (00002855) (AM); 1 ♀, National Park Belair, 12 Apr 1967, D. K. McAlpine (00002818) (AM); 1 ♀, Clarence, Blue Mountains, NSW, 30 Nov 1980, C. E. Chadwick (00002820) (AM); 1 ♀, Clarence, Blue Mountains, NSW, 28 Dec 1989, R. de Keyzer (00002829) (AM); SA: 1 ♂, 1 km S by E Elliston, 33.40 S 134.54 E, 30 Nov 1992, I. D. Naumann and J. C. Cardale (00002830) (AM); 1 ♂, Sassafras, 21 km E of Nerriga 650 m, 35 ° 07 ′ S 150 ° 11 ′ E, 12 Nov 1995, Schuh and Cassis (00002849) (AM). TASMANIA: 1 ♂ 1 ♀, Frankford: Lea (00002861) (AM); 1 ♀, Friendly Beaches, Freycinet Peninsula, 19 m, 41 ° 59.2899 ′ S 148 ° 17.2587 ′ E, 13 Nov 2002, G. Cassis, R. T. Schuh, M. D. Schwartz, R. Silveira (00002831) (TMAG); 2 ♂♂, 17 Mile Plain, Grunter Rd, 13 m, 40.88 ° S 144.89 ° E, 10 Mar 2010, C. Symonds, (00002836 - 00002837) (TMAG); 1 ♂, 17 Mile Plain, Grunter Rd, 13 M, 40.90 ° S 144.88 ° E, 11 Mar 2010, C. Symonds (00002838) (UNSW). SOUTH AUSTRALIA: 1 ♂ 2 ♀♀, Adelaide, A. H. Elston (00002851, 00002860) (AM); 1 ♀, Adelaide, H. M. Hale (00002858) (AM); 1 ♂, Myponga, H. M. Hale (00002852) (AM). 1 ♀, 15 km S of Bews, 130 m, 35 ° 29 ′ 05 ″ S 140 ° 25 ′ 59 ″ E, 08 Nov 1998, R. T. Schuh, G. Cassis, R. Silveira (00002824) (AM); 2 ♀♀, 38.1 km S of Bews, Ngarkat Conservation Park, 90 m, 35 ° 39 ′ 35 ″ S 140 ° 26 ′ 56 ″ E, 09 Nov 1998, R. T. Schuh, G. Cassis, R. Silveira (00002822 - 00002823) (AM); 3 ♀♀, Scorpion Springs Cons. Park, 125 m, 35 ° 36 ′ 15 ″ S 140 ° 51 ′ 52 ″ E, 10 Nov 1998, R. T. Schuh, G. Cassis, R. Silveira (00002826 - 00002828) (AM). WESTERN AUSTRALIA: 1 ♀, 2.2 km W of Windy Harbour, D’Entrecasteaux National Park, 50 m, 34 ° 49 ′ 16 ″ S 116 ° 00 ′ 40 ″ E, 15 Dec 1997, R. T. Schuh, G. Cassis, H. Brailovsky (00002825) (AM); 1 ♀, 3.5 km E of Lillian Stoke Rock, 360 m, 33 ° 4.6072 ′ S 120 ° 7.9191 ′ E, 21 Nov 1999, R. T. Schuh, G. Cassis and R. Silveira (00002832) (AM); 1 ♂, 39 km E of Lake King, 400 m, 33 ° 4.6774 ′ S 120 ° 5.6142 ′ E, 21 Nov 1999, R. T. Schuh, G. Cassis and R. Silveira (00002848) (UNSW); 1 ♀, Madfish Bay, William Bay National Park, 100 m, 35 ° 1.2076 ′ S 117 ° 15.2487 ′ E, 01 Dec 1999, R. T. Schuh, G. Cassis and R. Silveira (00002833) (UNSW); 1 ♀, 49 km S Eneabba, Coomallo RestArea, jct of Brand Highway and Jurien East Rd, 162 m, 30.22 ° S 115.40 ° E, 21 Oct 2004, G. Cassis, M. A. Wall, C. Weirauch, C. Symonds (00002850) (AM); 1 ♂, 2.1 km S of Coorow-Greenhead Rd, on Cockleshell Gully Rd, 156 m, 30.09 ° S 115.12 ° E, 06 Nov 2004, G. Cassis, C. Weirauch, N. Tatarnic, C. Symonds (00002834) (AM); 1 ♂, Brand Highway 18.8 km S of jct with Cervantes Rd, 203 m, 30.47 ° S 115.36 ° E, 07 Nov 2004, G. Cassis, C. Weirauch, N. Tatarnic, C. Symonds (00002835) (AM).	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE4FFC5FCBCFA8B2668F9EF.taxon	distribution	Distribution D. pallidus is known from New South Wales, Victoria, Tasmania, South Australia and Western Australia (Fig. 7).	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE4FFC5FCBCFA8B2668F9EF.taxon	biology_ecology	Host plants Cassis and Gross (2002) recorded this species from the following host plants: Allocasuarina muelleriana (Casuarinaceae), Leptospermum coriaceum (Myrtaceae), Leptospermum myrsinoides (Myrtaceae) and M. muelleriana (Myrtaceae). In this work, we record the following new host plants: Jacksonia horrida (Fabaceae) and M. sapientes (Myrtaceae) (Fig. 8 a).	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
03B687D2FFE4FFC5FCBCFA8B2668F9EF.taxon	discussion	Remarks See D. namyatovae remarks section for differential diagnosis.	en	Wang, Xiao-Jing, Liu, Guo-Qing, Cassis, Gerasimos (2014): Systematic study of Duadicus Dallas, 1851 (Insecta: Hemiptera: Heteroptera: Acanthosomatidae: Blaudusinae: Blaudusini), including the description of a new species from Western Australia. Austral Entomology 53 (1): 42-52, DOI: 10.1111/aen.12046, URL: https://doi.org/10.1111/aen.12046
