Calycina Blair, 1922

Ruzzier, Enrico & Kovalev, Alexey V., 2016, First record of Calycina Blair, 1922 (Coleoptera, Mordellidae) in the Russian Far East with description of a new species, Zootaxa 4103 (1), pp. 75-78 : 78

Key to species of Calycina Blair, 1922 (after Ruzzier 2013, modified)

1 Body bicolored ................................................................................................................................................................................. 2 - Body unicolored .............................................................................................................................................................................. 5 2 Body entirely light orange with blue elytra. Antennomere III longer than broad (ratio 1.5) and longer than IV (ratio 1.4); temples with prominent, strongly acute temporal angle; posthumeral elytral disc with slightly marked longitudinal impression in basal half, only; pygidium not covered by elytra. Length 16 mm. New Guinea................................................... C. poggii Ruzzier, 2013 - Body partially or entirely black........................................................................................................................................................ 3 3 Elytra and body, except for the bright orange abdomen, entirely shiny black ........................................................... C. horaki n.sp. - Body rust colored with black elytral apices and black head ............................................................................................................ 4 4 Antennomere I and III equal in size, each three times as long as antennomere II and twice as long as IV; antennae from antennomere IV strongly serrate, antennomere IV as long as wide, antennomere X 1 /3 wider than long; temples with prominent acute temporal angle; tarsomere IV of prothoracic and mesothoracic legs emarginate in distal 2/3 of their length. Length 12 mm. Malaysia...................................................................................................................................................... C. nigriceps (Blair 1922) - Antemmoere III as long as II and a little shorter than IV, scape distinctly larger than the antennomere III and only a little longer than II; antennae from antennomere IV only fleebly serrate, with antennomeres IV and X slightly longer than wide; temporal angles not projecting into acute points; tarsomere IV of prothoracic and mesothoracic legs only shallowly emarginate. Length 6 mm (excluding head and pygidium). Taiwan................................................................................. C. nigroapicalis ( Nomura, 1967) 5 Elytra relatively stout, 2.0X (female) or 2.3X (male) longer than their maximal combined width at humeri; pygidium completely covered by elytra (female) or distinctly projecting behind them (male), only slight longer than hypopygidium; elytral pubescense dark brown, with golden-silvery pattern consisting of large and vaguely delimited humeral spots and broad transverse spot behind elytral mid-length. Length 9.0– 10.4 mm. West Africa (Gulf of Guinea) ............................................... C. guineensis (Blair, 1922) - Elytra relatively long, 2.4–2.7X (in both sexes) as long as their combined width at humeri; pygidium distinctly exceeding elytra, sometimes completely exposed, nearly 2x as long as hypopygidium; pubescence of elytra reddish brown to brown, unicolorous, in some specimens with strips of golden-brown setae along suture.................................................................................................. 6 6 Sides of pronotum in lateral view straight, posterior angles subrectangular; pronotum with slightly projecting posterior lobe at its base; elytra without pale pubescence along suture........................................................................................................................... 7 - Sides of pronotum in lateral view convex, posterior angles broadly obtuse; pronotum with low mediolongitudinal carina reaching posterior lobe to anterior margin; elytra with more or less distinct golden-brown pubescence along suture ................................. 8 7 Male maxillary palpi as in fig. 7 ( Brazil) ..................................................................................... C. palpalis palpalis (Blair, 1922) - Male maxillary palpi as in fig. 8 ( French Guiana) ....................................................................... C. palpalis ruzzieri Leblanc, 2013 8 Elytra long and slender, 2.6–2.7X as long as their combined width at humeri; disc of each elytron behind humerus with distinct longitudinal impression reaching apex of elytra; head and pronotum black. Length 15–16 mm. Taiwan, West Sumatra ................ ................................................................................................................................................................... C. major ( Nomura, 1967) - Elytra relatively stout, 2.4X as long as their combined width at humeri; disc of each elytron behind humerus with slightly marked longitudinal impression, only in basal half; head and pronotum dark brown, slightly darker than elytra. 16.2 mm. New Guinea... .......................................................................................................................................................... C. sericeobrunnea (Blair, 1915)