Hallodapus jingfui Yasunaga & Duwal, 2019

Yasunaga, Tomohide, Tamada, Yui, Hinami, Haruka, Miyazaki, Ayana, Duwal, Ram Keshari & Nagashima, Tetsuya, 2019, Taxonomic review for the Asian taxa of plant bug tribe Hallodapini, with emphasis on stridulatory mechanism (Hemiptera: Heteroptera: Miridae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 59 (1), pp. 71-99 : 82-90

Hallodapus jingfui Yasunaga & Duwal sp. nov.

( Figs 25–27 , 52 , 116–118 , 174–176 )

Type material. HOLOTYPE: ♁, TAIWAN: PINGDONG (= PINGTUNG): Sheding , 21°57′24.7″N, 120°49′40″E, UV lighting, 22 Sep 2012, J.F. Tsai & Y.C. Lan ( NMNS) ( AMNH _ PBI 00380632 ).

Differential diagnosis. Recognized by its tiny size; relatively ovoid body; yellowish brown antenna with reddish extreme base of segment I; narrowly distributed MFP ( Fig. 52 ); triangular pygophore ( Fig. 174 ); roundly inflated sensory lobe of left paramere ( Fig. 175 ); and C-shaped endosoma, with an apically bulbous process near apex ( Fig. 176 ). Combination of these characters enables this new species to be distinguished from other Asian congeners.

Description. Male (holotype). Body generally coffee brown, small, rather ovoid ( Figs 25–26 ); dorsal surface weakly shining, with sparsely distributed, pale, simple, semierect setae. Head short, with reddish basal margin; eyes small, less than half as wide as vertex in dorsal view. Antenna almost uniformly yellowish brown; extreme base of segment I reddish brown; segment II slightly longer than III. Labium reddish brown, exceeding apex of metacoxa, reaching abdominal sternum VIII. Pronotum weakly shining, trapezoidal, not strongly constricted anteriorly; pleura shiny dark brown; scent efferent system somber pale brown, small. Hemelytron with two pairs of white maculae as in Fig. 25 (anterior macula across clavus, corium and embolium rectangular and posterior macula across apices of corium and embolium triangular); FWS roundly notched ( Figs 27 , 117 ); cuneus brown, narrowed; membrane pale smoky brown. Coxae and legs pale brown; apical half of metafemur and basal 1/3 of each tibia obscure; MFP distributed narrowly on median part of metafemur, with each plectrum tiny, circular ( Figs 52 , 118 ). Abdomen wholly fuscous, short. Male genitalia ( Figs 174–176 ): Pygophore triangular ( Fig. 174 ); left paramere with roundly expanded sensory lobe ( Fig. 175 ); endosoma C-shaped, with an apically bulbous process near apex ( Fig. 176 ).

Measurements. Male (holotype, mm): Total length of body 2.65; head width including eyes 0.51; vertex width 0.29; lengths of antennal segments I–IV 0.30, 0.97, 0.90, 0.48; total labial length 1.28; basal width of pronotum 0.78; maximum width across hemelytron 0.93; and lengths of metafemur, tibia and tarsus 1.02, 1.47, 0.41.

Female. Unknown.

Etymology. Named after a Taiwanese heteropterist, Dr. Jing-Fu Tsai who collected a valuable specimen herein designated as the holotype.

Biology. Unknown; the holotype specimen was collected by a UV light trap at rather sparse subtropical forest in Sheding National Park, southernmost part of Taiwan.

Distribution. Taiwan (this paper).

Figures

Figs 25–31. Two new species of Hallodapus. 25–27 – H. jingfui sp. nov., holotype♁ (Taiwan): 25 – dorsal habitus; 26 – ventral habitus; 27 – hemelytron (FWS, right). 28–31 – H. spinosus sp. nov., holotype ♁ (Thailand): 28 – dorsal habitus, with metatarsus; 29 – left lateral habitus; 30 – pygophore with pygophoral spine and exposed endosoma (see also Fig. 124); 31 – apical structure of endosoma.

Figs 40–55. Stridulatory device (MFP, except for FWS on 55) of Asian hallodapines observed by a compound microscope. 40–41 – Hallodapus brunneus (Poppius, 1915); 42–43 – H. centrimaculatus (Poppius, 1909); 44 – H. fasciatus (Poppius, 1909) (Nakhon Nayok, Thailand); 45–46 – H. kyushuensis Miyamoto, 1965; 47 – H. spinosus sp. nov.; 48–50 – H. ravenar (Kirkaldy, 1902); 51 – H. linnavuorii Miyamoto, 1965; 52 – H. jingfui sp. nov.; 53 – H. sibiricus Poppius, 1912 (S. Primorsky, Russia); 54 – Alloeomimella muiri (Schuh, 1984); 55 – Wygomiris paveli sp. nov.

Figs 116–130. Scanning electron micrographs for new Hallodapus species. 116–118 – H. jingfui sp. nov., ♁ (Taiwan): 116 – dorsal habitus; 117 – FWS; 118 – MFP. 119–124 – H. spinosus sp. nov., ♁ (Thailand): 119 – dorsal habitus; 120 – left lateral habitus; 121 – scent efferent system; 122 – FWS; 123 – MFP; 124 – pygophore with exposed endosoma. 125–130 – H. susurratus sp. nov., ♁ (Thailand): 125 – dorsal habitus of anterior body; 126 – FWS; 127 – MFP; 128 – thoracic pleura; 129 – pretarsus (hind leg); 130 – pygophore.

Figs 174–180. Male genitalia of Hallodapus species. 174–176 – H. jingfui sp. nov., holotype: 174 – pygophore with phallotheca, ventral view; 175 – left paramere; 176 – endosoma. 177–178 – H. brunneus (Poppius, 1915) (Ishigaki Island, Japan): 177 – phallotheca; 178 – endosoma. 179 – H. linnavuorii (Miyamoto, 1965) (Nagasaki, Japan), endosoma; 180 – H. kyushuensis (Miyamoto, 1965) (Okinawa, Japan), endosoma. Scale bars 0.2 mm.