Pityopsallus maeharai, Yasunaga, 2022

Yasunaga, Tomohide, 2022, The plant bug subfamily Phylinae in Japan, with key to genera and descriptions of eight new species (Hemiptera: Heteroptera: Miridae), Zootaxa 5094 (1), pp. 1-52 : 24-26

publication ID

https://doi.org/ 10.11646/zootaxa.5094.1.1

publication LSID

lsid:zoobank.org:pub:72F6E1D9-E9E4-41F6-9AC0-97A249F94E68

DOI

https://doi.org/10.5281/zenodo.6301174

persistent identifier

https://treatment.plazi.org/id/AC7FEA3B-081A-FFF0-FF78-FC39FCB57781

treatment provided by

Plazi

scientific name

Pityopsallus maeharai
status

sp. nov.

Pityopsallus maeharai n. sp.

( Figs. 11 View FIGURE 11 A−D; 12A−C, F−G; 16; 26A−F; 27A−E, J−L)

Material examined. Holotype (♂). JAPAN: Honshu, Tochigi Pref., Nikko, Yumoto , 36.81, 139.42, on Larix kaempferi , 18 Aug 2020, S. Maehara ( AMNH) ( AMNH _ PBI 00380706 About AMNH ) . Paratypes: JAPAN: Honshu , same data as for holotype, 2♂ ( TYCN) ; Tochigi Pref., Nikko City , Senjugahama, Lake Chuzenji, 36.75, 139.42, 25 Aug 2007, S. Maehara, 1♂ ( TYCN) ; Nikko City , Chugushi, Lake Chuzenji, 24 Aug 2001, S. Maehara, 1♀ ( TYCN) ; Nikko City , Shobugahama, Lake Chuzenji, 36.75, 139.45, S. Maehara, 1♀ ( TYCN) ; Nagano Pref., Matsumoto City , Azumi , Japan Alps, Kamikochi, 36.25, 137.67, 1,500 m alt., 5 Aug 2004, M. Takai, 1♀ ( TYCN) (00380707).

Diagnosis. Recognized by its uniformly darkened, relatively small body ( Fig. 11 View FIGURE 11 A−D); short labium whose apex does not exceed apex of mesocoxa; pale anterior margin of cuneus; distinctly notched inner surfaces of claws on pro- and metatarsi ( Fig. 26D, F View FIGURE 26 ); relatively narrow left paramere sharply produced caudally ( Fig. 12A View FIGURE 12 ); and thick vesica ( Figs. 12C View FIGURE 12 , 27C View FIGURE 27 ). Most similar and possibly closely allied to P. vittatus , the present new species can be distinguished by its shorter labium; claws of pro- and metalegs minutely notched; thicker vesica with longer apical blade; and wider interramal sclerite with minute comb-like scaly microstructures ( Fig. 27 View FIGURE 27 J−K).

Description. Body generally fuscous, elongate-oval, subparallel-sided (a little more ovoid in ♀) ( Fig. 11A–D View FIGURE 11 ); dorsal surface weakly shining, with uniformly distributed, semierect, brown, simple setae and silvery, lanceolate setae. Head dark brown, relatively vertical; eye small. Antenna pale grayish brown; extreme base of segment I infuscate; segment II about as long as or slightly longer than mesotibia. Labium pale brown or sometimes widely darkened, reaching or slightly exceeding apex of mesocoxa. Pronotum uniformly fuscous; scutellum weakly elevated; thoracic pleura fuscous; metathoracic scent efferent system small. Hemelytra uniformly dark brown; anterior margin of cuneus pale, semitransparent; membrane pale smoky brown, with pale, semitransparent macula along apical part of cuneus. All coxae dark brown; trochanters pale brown; profemur pale brown, with darkened basal half; meso- and metafemora widely darkened, sometimes with spotted pattern, except for apices pale brown; tibiae somber yellowish brown, with small, obscure spots at bases of pale brown spines; tarsi somber brown; inner surface of claws on pro- and metatarsi with minutely notched ( Fig. 26D, F View FIGURE 26 ). Abdomen almost uniformly fuscous. Male genitalia ( Figs. 12 View FIGURE 12 A−C; 27A−D): left paramere relatively narrow, sharply produced posteriad ( Fig. 12A View FIGURE 12 ); vesica comparatively thick ( Figs. 12C View FIGURE 12 , 27C View FIGURE 27 ). Female genitalia ( Figs. 12 View FIGURE 12 F−G; 27K−L): Sclerotized rings reduced, indistinct ( Fig. 12F View FIGURE 12 ); posterior wall with relatively wide interramal lobe and interramal sclerite ( Fig. 27 View FIGURE 27 K−L); apex of ovipositor (gonapophysis I) somewhat rounded ( Fig. 12G View FIGURE 12 ).

Measurements: See Table 4 View TABLE 4 .

Etymology. Named for Mr. S. Maehara (Tochigi, Japan) who collected most of the specimens of this new species.

Distribution. Japan (Central Honshu: Nagano and Tochigi).

Biology. The breeding host was confirmed as Larix kaempferi (Lamb.) Carr. (Pinaceae) and the adults was collected in August at the type locality (Maehara, pers. comm.).

TABLE 4. Measurements for Japanese Pityopsallus and Psallus species. Abbreviations—Fem: femur, HT: holotype; L: length, Lbm: labium, Pron: pronotum, PT: paratype, Tib: tibia; Vtx: vertex (interocular space); W: width.

  Body L Head W Vtx W Pron W Max W Antenna L II III Lbm L Hind leg L Fem Tib
Pityopsallus maeharai n. sp. Male (N=3)
MAX 3.92 0.78 0.30 1.17 1.50 1.10 0.78 1.35 1.20 1.80
MIN 3.65 0.75 0.29 1.07 1.26 1.02 0.60 1.20 1.20 1.70
MEAN 3.79 0.77 0.30 1.11 1.41 1.06 0.71 1.26 1.20 1.75
Pityopsallus maeharai n. sp. Female (N=3)
MAX 3.60 0.72 0.38 1.07 1.40 0.90 0.62 1.22 1.19 1.77
MIN 3.43 0.71 0.36 1.02 1.37 0.87 0.60 1.08 1.04 1.53
MEAN 3.50 0.71 0.37 1.05 1.39 0.88 0.61 1.16 1.11 1.63
Pityopsallus sakuraii n. sp. (holotype)
Male 3.43 0.74 0.27 1.07 1.28 0.99 0.65 1.02 1.05 1.50
Psallus castaneae Male (N=6)
MAX 3.96 0.75 0.35 1.34 1.65 0.95 0.57 1.35 1.22 1.79
MIN 3.66 0.71 0.32 1.22 1.47 0.83 0.45 1.20 1.10 1.65
MEAN 3.81 0.73 0.33 1.28 1.54 0.88 0.49 1.27 1.14 1.73
Psallus castaneae Female (N=6)
MAX 4.11 0.77 0.39 1.37 1.68 0.92 0.57 1.37 1.20 1.80
MIN 3.33 0.69 0.33 1.17 1.47 0.80 0.42 1.20 1.05 1.62
MEAN 3.86 0.74 0.37 1.28 1.59 0.87 0.51 1.31 1.17 1.73
Psallus edoensis (N=3)
HT male 3.84 0.71 0.30 1.20 1.50 0.78 0.48 1.20 1.05 1.62
PT male 3.81 0.74 0.34 1.22 1.44 0.78 0.48 1.29 1.07 1.68
PT male 4.17 0.74 0.32 1.35 1.62 0.86 0.47 1.29 1.13 1.77
Psallus ramae n. sp. Male (N=6)
MAX 3.87 0.75 0.33 1.25 1.50 0.92 0.53 1.29 1.14 1.65
MIN 3.27 0.69 0.32 1.16 1.43 0.84 0.45 1.20 1.04 1.53
MEAN 3.62 0.71 0.33 1.20 1.46 0.87 0.48 1.22 1.07 1.59
Psallus ramae n. sp. Female (N=7)
MAX 3.60 0.72 0.38 1.07 1.40 0.90 0.62 1.22 1.19 1.77
MIN 3.43 0.71 0.36 1.02 1.37 0.87 0.60 1.08 1.04 1.53
MEAN 3.50 0.71 0.37 1.05 1.39 0.88 0.61 1.16 1.11 1.63
Psallus tonnaichanus Male (N=4)
MAX 3.96 0.74 0.36 1.23 1.56 0.90 0.56 1.29 1.23 1.80
MIN 3.78 0.69 0.33 1.13 1.44 0.86 0.54 1.22 1.05 1.65
MEAN 3.86 0.72 0.35 1.19 1.50 0.88 0.55 1.25 1.15 1.73
Psallus tonnaichanus Female (N=3)
MAX 3.90 0.74 0.41 1.23 1.62 0.90 0.51 1.29 1.17 1.74
MIN 3.42 0.69 0.35 1.05 1.44 0.77 0.47 1.23 1.02 1.55
MEAN 3.72 0.71 0.38 1.17 1.55 0.84 0.49 1.27 1.10 1.66
AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Miridae

Genus

Pityopsallus

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