Two new species of the mirine plant bug genus Adelphocorisella (Insecta: Heteroptera: Miridae: Mirinae: Mirini) from central Thailand Author Yasunaga, Tomohide Author Shishido, Takayuki Author Yamada, Kazutaka text Raffles Bulletin of Zoology 2016 2016-08-19 64 250 256 journal article 10.5281/zenodo.4504366 2345-7600 4504366 048868C8-8F1B-4202-9991-F8FA0E2B5CE4 Adelphocorisella sarika , new species ( Figs. 1A, B , 2 B, C , 4 ) Material examined. Holotype : male, THAILAND : Nakhon Nayok , Sarika , N14°18’39” E101°18’00” , at light, coll. T . Yasunaga, K . Yamada, 16 June 2009 ( AMNH _ PBI 00380438 ) ( DOA ) . Paratypes : THAILAND : 1 male , Nakhon Nayok , Sarika , N14°18’39” E101°18’00” , at light, coll. T . Yasunaga , 19 December 2010 (00380439) ( TYCN ) ; 1 male , Nakhon Ratchasima , Wang Nam Khieo , Sakaerat Environmental Research Station ( SERS ), N14°30’27” E101°55’39” , 410 m alt., UV light trap, coll. T . Yasunaga, K . Yamada , 12−14 June 2009 (00380440) ( TYCN ) . Diagnosis. Recognised by its smallest size among congeners; generally short antenna; chestnut brown, weakly mottled pronotum and hemelytron ( Fig. 1A, B ); long metatibia; sharply curved hypophysis of left paramere; triangular, apically pointed hypophysis of right paramere; and broad endosomal spiculum ( Fig. 4 ). A combination of these characters enables this new species to be distinguished from any other species of Adelphocorisella . Description. Body elongate oval, nearly parallel-sided; dorsal surface chestnut brown, widely matte, with uniformly distributed, brown, simple setae and densely distributed, reclining silvery setae ( Fig. 1A, B ). Head reddish brown, mottled with yellow. Antenna yellowish brown; segment I with reddish brown spots. Labium shiny pale brown, reaching abdominal sternum VI; basal 2/3 of segment I and apical half of IV chocolate brown. Pronotum chestnut brown, weakly shining, slightly mottled anteriorly, with yellow posterior margin; collar reddish brown, matte, speckled with yellow spots; pleura reddish brown, mottled with yellow; ostiolar peritreme creamy yellow; scutellum chestnut brown, somewhat darkened posteriorly, sometimes with pale apex. Hemelytron matte, without significant mottled pattern; lateral margin of embolium narrowly yellow, speckled with red spots; cuneus yellow, with dark base and apex, speckled with red spots; membrane smoky brown, with irregular pale marks posterior to apex of cuneus; membrane vein usually tinged with red. Coxa and leg yellowish brown; procoxa widely reddish brown; meso- and metacoxae each with a reddish brown spot subbasally; all femora speckled with small, reddish brown spots; pro- and mesofemora sanguineous brown basally; metafemur widely chestnut brown dorsally ( Fig. 1A, B ), with a sanguineous stripe at basal 1/4 along anterior margin ( Fig. 2B, C ); tibial spines pale or reddish brown. Abdomen matte, yellowish brown, ventrally with a pair of reddish brown stripes (continuing from metacoxae to paired, lateral large marks on pygophore) and with scattered, red, small spots ( Fig. 2B ). Male genitalia ( Fig. 4 ): Left paramere rather long, with sharply curved hypophysis; right paramere short and broad, with triangular, pointed hypophysis. Apex of phallotheca narrowly keeled. Endosoma with clear sclerite ‘c’ (sclerite C sensu Malipatil & Chérot, 2002 ), and comparatively developed, weakly curved and apically tapered spiculum. Female : Unknown. Measurements. Male: Total body length 3.9−4.3; width of head across eyes 0.88−0.94; width of vertex 0.24−0.27; lengths of antennal segments I−IV 0.61−0.64, 1.88−1.94, 1.61−1.72, 0.88−0.98; length of labium 1.96−2.06; basal width of pronotum 1.25−1.28; maximum width across hemelytron 1.49−1.55; and length of metafemur, tibia and tarsus 2.13−2.21, 3.18−3.26, 0.51−0.59. Biology. Unknown; all available specimens were collected at light. Collection records suggest this mirid has two or more generations per year. Etymology. Named for the type locality, Sarika in Nakhon Nayok Province .