ORTHOTYLINI IN

Yasunaga, Tomohide & Duwal, Ram Keshari, 2017, Plant bugs of the tribe Orthotylini (Heteroptera: Miridae: Orthotylinae) in Thailand, with descriptions of five new species, Raffles Bulletin of Zoology 65, pp. 280-298 : 282

KEY TO GENERA AND SPECIES OF ORTHOTYLINI IN THAILAND

1. Antennal segment II entirely (or at least basal half) fuscous; pronotum somewhat campanulate, with anterior half (lateral margin of calli) constricted, distinctly demarcated from posterior half; scutellum pale, with a fuscous, longitudinal mesal stripe...................................................... 2 ( Cyrtorhinus )

– Antennal segment II pale brown, creamy yellow or pale green, sometimes with a few pale red rings; pronotum not constricted, trapeziform; scutellum sometimes with orange-red mark but without any dark stripe ...........................................................3

2. Antennal segment I about as long as mesal length of head in dorsal view (cf. Fig. 1C ); calli usually shiny pale brown; inner margin of clavus pale; each tibia almost uniformly pale, without dark base (or faintly with tiny spot at knee in some specimens as in Fig. 1D ); abdomen pale, without dark lateral margin ( Fig. 6C, D ) .......................... Cyrtorhinus lividipennis

– Antennal segment I distinctly longer than mesal length of head in dorsal view (cf. Fig. 1C ); calli usually brown or fuscous; inner margin of clavus narrowly infuscate ( Fig. 1A ); base of each tibia always infuscate; abdomen usually with darkened lateral margin ( Fig. 6A, B ) ...... C. indochinanus , new species

Figures

Fig. 1. Habitus images of Thai orthotylines. A, Cyrtorhinus indochinanus, male (Nakhon Nayok); B, Cyrtorhinus indochinanus, female; C, Cyrtorhinus indochinanus, female (lower) with C. lividipennis, female (SERS); D, C. lividipennis, male (SERS); E, Orthotylus taksini, male (SERS); F, Orthotylus taksini, female (SERS).

Fig. 6. Habitus images of Thai orthotylines, dried specimens (except for E in live). A, Cyrtorhinus indochinanus, holotype male, ventral view; B, Cyrtorhinus indochinanus, female; C, C. lividipennis, male (Nakhon Nayok); D, C. lividipennis, female (SERS); E, F, M. thaimaritimus, male (Samut Prakan); G, M. thaimaritimus, ventral view; H, M. thaimaritimus, female (Samut Prakan).