Revision of Thisiomorphus Pic (Coleoptera: Mycteridae: Eurypinae) with descriptions of eleven new species from Central and South America and a key to genera of Neotropical Eurypinae Author Pollock, Darren A. text Zootaxa 2016 4093 3 301 322 journal article 10.11646/zootaxa.4093.3.1 85f537f5-faf4-4a89-839b-8f56feadb0e4 1175-5326 264106 565068DE-7042-483D-99FD-50BD2FA86BC1 Key to adults of described Neotropical (including Chile) genera of Eurypinae 1 Head with distinct, shallowly impressed ocular grooves, narrowly separated from eyes, traceable from frontal canthus to poste- rior extent of eye...................................................................................... 2 - Head without such an ocular groove....................................................................... 3 2 Procoxal cavities closed; dorsal surface without conspicuous setae; elytral shape generally conical, widest posteriorly ( Fig. 21 )..................................................................... Stilpnonotus Gray (7 described species) - Procoxal cavities narrowly open; dorsal surface with conspicuous setae (although short in some species); elytral shape gener- ally parallel-sided ( Fig. 22 )........................................ Conomorphus Champion (10 described species) 3 Eye with conspicuous intrafacetal setae (e.g., Fig. 32 )......................................................... 4 - Eye either without intrafacetal setae, or setae so short they are not noticeable using standard light microscopy, definitely not conspicuous.......................................................................................... 8 4. Head with distinct, deep frontal furrows (e.g., Figs 32–33 )..................................................... 5 - Head without deep frontal furrows........................................................................ 7 5 Mandibles bluntly unidentate apically; eyes small, widely separated (ocular index> 60); antennomeres elongate, filiform to subserrate; dorsal body surface with light and dark setae, producing a mottled appearance ( Fig. 23 )........................................................................................... Loboglossa Solier (6 described species)1 - Mandibles bidentate apically; eyes larger, more narrowly separated (ocular index <60); antennomeres variable; dorsal body surface either uniform in color, or with longitudinally oriented color pattern, not mottled............................ 6 6 Penultimate tarsomere very wide, wider than length of distal tarsomere ( Fig. 32 ); frontal furrows relatively straight, subparallel; ommatidia coarse.............................................. Eurypus Kirby (6 described species) ( Fig. 24 ) - Penultimate tarsomere wide, but width less than length of distal tarsomere; frontal furrows somewhat arcuate, distinctly convergent anteriorly ( Fig. 33 ); ommatidia fine...................... Cladobradus Pic (1 species: C . atritarsis Pic ) ( Fig. 25 ) 7 Male sex patch consisting of setae on both ventrites 2 and 3; wing rudimentary, not extended to elytral apex................................................................ Conomorphinus Champion (1 species: C . bolivianus Champion ) - Male sex patch restricted to V2 ; wing fully developed, extended to elytral apex.................................... 8 8 Male sex patch consisting of distinctly raised, rounded “platform” with either no setae, or setae short and dense; known only from Chile............................................. Batobius Fairmaire & Germain (4 described spp.) ( Fig. 27 ) - Male sex patch consisting of relatively long setae, borne on raised medial section of ventrite 2; Known only from Brazil............................. Brasilaccoderus Pollock (2 species: B . scaber (Champion) and B . plaumanni Pollock ) ( Fig. 26 ) 9 Head distinctly rounded; eyes large, width across eyes equal to or greater than width of pronotum; pronotum with lateral carina present, at least in basal half; male sex patch on V3. ......................................................... 10 - Head not distinctly rounded; eyes usually smaller, width across eyes less than or equal to width of pronotum; pronotum with lateral carina absent, or at most vaguely suggested only, in basal half; male sex patch on V2. ........................ 11 10 TL of most specimens> 3.5 mm ; apical maxillary palpomere cultriform; apical labial palpomere ovate with truncate apex........................................... Cleodaeus Champion (1 described species: C . rugiceps Champion ) ( Fig. 30 ) - TL of most specimens < 3.5 mm ; apical maxillary palpomere securiform; apical labial palpomere narrowed distally, pyriform........................................................... Physcius Champion (22 described species) ( Fig. 31 ) 11 Eyes flat and not protuberant, facets coarse, width of single eye about half length; frontal furrows absent; male sex patch absent........................................................ Thisias Champion (5 described species) ( Fig. 28 ) - Eyes more protuberant, facets fine, width of single eye distinctly greater than half length; frontal furrows at least suggested, often rather deep; male sex patch present, on ventrite 2....................................................... 12 12 Head with frons slightly to distinctly sunken about level of antennal insertions; pronotal disc with pair of distinct, rounded depressions................................................... Physiomorphus Pic (8 described species) ( Fig. 29 ) - Head with frons flat, not sunken; pronotal disc uniformly convex, without pair of distinct, rounded depressions (in some specimens – notably T . brasiliensis – with slight indentations, but not distinct, rounded depressions).................................................................................................... Thisiomorphus Pic ( Figs 1–12 )