Randallopsallus paracastaneae Yasunaga, 2013

Yasunaga, Tomohide, Duwal, Ram Keshari & Jsps, 2017, Two new species of the phyline plant bug genus Randallopsallus from Southeast Asia (Hemiptera: Heteroptera: Miridae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2), pp. 457-471 : 463

Randallopsallus paracastaneae Yasunaga, 2013

( Figs 1 , 11–13, 16, 17 , 21, 24, 27 , 28–32 , 44–46 , 51–54 , 64 )

Randallopsallus paracastaneae Yasunaga,2013:197 (sp. nov.); YASUNAGA et al.(2016): 445 (status of type depository). Type material. HOLOTYPE: J, THAILAND: NAKHON RATCHASIMA: Wang Nam Khiao, Udom Sap, Sakaerat Environmental Research Station ( SERS), N14.507645 E101.927677, 410 m alt., UV light trap, 15–16 Sep 2008, T. Yasunaga ( AMNH _ PBI 00379407 ) ( DOAT). PARATYPES: Same data as for the holotype, 3 JJ 5 ♀♀ ( AMNH _ PBI 00379408–00379415 ) ( AMNH, CNC & TYCN) ; same data, except for date 28 Oct 2008, T. Yasunaga, 1 J 1 ♀ (00379416–00379417) ( TYCN), and 31 May 2012, T. Yasunaga, 1 ♀ (00379498) ( TYCN) .

Additional material examined. THAILAND: Same locality ( SERS), UV light trap, 12 Dec 2015, T. Yasunaga, 2 JJ 4 ♀♀ ( TYCN, without USIs).

Diagnosis. Recognized by its moderate size; antennal segment II more than four times as long as I; dark apical 2/5–1/3 of basally yellowish brown antennal segment II; scent efferent system with a distinct knob ( Fig. 24 ); uniformly chocolate (in fresh specimen reddish) brown metacoxa and metafemur; short metatarsomere I (proportion of metatarsomeres I–III = 2: 4: 5); and distinctive form of male ( Figs 28–32 ) and female ( Figs 44–46 ) genitalia. See YASUNAGA (2013) for detailed description.

Measurements. See Table 1.

Biology. Collection records suggest R. paracastaneae has at least two generations per year; fresh adult individuals ( Fig. 1 , females with the reddish femora, and Fig. 12 ) were collected by using UV light trap in May, September and December.

Distribution. Central Thailand (Nakhon Ratchasima).

Figures

Figs 1–6. Habitus images of phyline plant bugs, live adult individuals. 1 – Randallopsallus paracastaneae Yasunaga, 2013 (all attracted to UV light trap) (SERS, Thailand), 2–3 – Hypseloecus castaneus Yasunaga, Yamada & Artchawakom, 2015 (2 – J, Chaiyaphum, Thailand; 3 – ♀, Nakhon Nayok, Thailand), 4 – Sthenaridea piceonigra (Motschulsky, 1863) (J, Yangon, Myanmar), 5 – Psallus edoensis Yasunaga & Vinokurov, 2000 (♀, Tokyo, Japan).

Figs 6–17.Habitus images of Randallopsallus spp. (6, 9, 10 – dorsal, 7, 8, 12–13 – ventral, 14–17 – left lateral views). 6–8, 14 – R. malayanus sp. nov. 9–10, 15 – R. berastagi sp. nov. 11–13, 16–17 – R. paracastaneae Yasunaga, 2013.

Figs 18–27. Randallopsallus spp., head in frontal view (18–21), scent efferent system (22–24), and pro- (27), meso- (26) and metatarsus (25). 18, 19, 22, 25 – R. malayanus sp. nov.; 20, 23, 26 – R. berastagi sp. nov.; 21, 24, 27 – R. paracastaneae Yasunaga, 2013.

Figs 28–35. Randallopsallus spp., male genitalia. 28–32 – R. paracastaneae Yasunaga, 2013: 28 – pygophore in dorsal view, 29 – right paramere, 30 – left paramere, 31 – phallotheca, 32 – endosoma; 33–35 – R. malayanus sp. nov.: 33 – apex of pygophore in dorsal view, 34 – phallotheca, 35 – endosoma.

Figs 36–47. Randallopsallus spp. and Hypseloecus castaneus Yasunaga, Yamada & Artchawakom, 2015, female genitalia: 36–40 – R. berastagi sp. nov.: 36 – bursa copulatrix in dorsal view, 37 – ditto in ventral view, 38 – sclerotized ring, 39 – medioventral extension of ventral labiate plate, 40 – posterior wall; 41–43 – R. malayanus sp. nov.: 41 – bursa copulatrix in dorsal view, 42 – posterior wall, 43 – medioventral extension of ventral labiate plate; 44–46 – R. paracastaneae Yasunaga,2013:44 – posterior wall, 45 – bursa copulatrix in dorsal view, 46 – medioventral extension of ventral labiate plate; 47 – Hypseloecus castaneus: bursa copulatrix in dorsal view. Scale bars 0.2 mm.

Figs 48–54. Scanning electron micrographs for Randallopsallus spp. 48–50 – R. berastagi sp. nov., ♀: 48 – head and thorax, left lateral view, 49 – thoracic pleura and scent efferent system, 50 – metatarsi; 51–54 – R. paracastaneae Yasunaga, 2013, ♀: 51 – head and thorax, left lateral view, 52 – thoracic pleura and scent efferent system, 53 – metatarsi, 54 – pretarsus of foreleg.

Fig. 64. Distribution map for species of Randallopsallus.