Hypogena canaliculata ( Champion, 1886 )

Grey, Luna & Smith, Aaron D., 2020, A matrix-based revision of the genus Hypogena Dejean, 1834 (Coleoptera Tenebrionidae), Zootaxa 4780 (2), pp. 201-258 : 228-229

Hypogena canaliculata ( Champion, 1886)

( Figs 1 , 17 , 18 )

Ulosonia canaliculata Champion, 1886: 164 .

Type Material: LECTOTYPE (male) labeled: (a) “V. de Chiriqui, / 2-3000ft / Champion ”; (b) “ Godman-Salvin / Coll., Ciol. / Centr.-Amer.”; (c) “ Ulosonia / canaliculata / ♂ Ch”; ( BMNH); (d) “Tenebrionid Base / Aaron D. Smith / Catalog # 15334”; (e) “ LECTOTYPE / Hypogena / canaliculata / Grey & Smith, 2020”. Designated here. (See Fig. 17 ). Champion did not originally describe a holotype for this species. Therefore, a lectotype is designated here from Champion’s series of syntypes to maintain the taxonomic concept for this species.

Additional material examined: (22 females, 47 males, 1 sex unknown): BRAZIL: Santa Catarina: 1 female. TB# 20320 ( CASC) . COSTA RICA: 2 females, 9 males. TB# 17793-17794, 17796 ( EMEC); TB# 17803-17804 , 20312 ( NMNH); TB# 17845-17846 ( NHMB); TB# 20300-20301 , 21778 ( EMEC) . COSTA RICA: Alajuela: 5 males. TB# 20313 ( NMNH); TB# 17795 , 17798 , 20303 , 21779 ( CASC) . COSTA RICA: Guanacaste: 3 females, 14 males. TB# 17783-17789 ( EMEC); TB# 17790-17792 , 17797 , 20304-20307 ( CASC); TB# 20302 , 21777 ( EMEC) . COSTA RICA: Limón: 1 male. TB# 17810 ( BMNH) . CUBA: 1 female. TB# 20321 ( NMPC) . GUATEMALA: 2 females, 1 male, 1 sex unknown. TB# 17801, 21179 ( NMNH); TB# 15681 (unknown); TB# 16356 ( ADSC) . GUATEMALA: Petén: 1 female. TB# 20315 ( NMNH) . HONDURAS: 1 female. TB# 21781 ( BMNH) . MEXICO: 1 female, 2 males. TB# 17802, 20316 ( NMNH); TB# 17843 ( BMNH) . MEXICO: Tabasco: 1 male. TB# 17800 ( NMNH) . MEXICO: Tamaulipas: 1 female. TB# 20314 ( EMEC) . NICARAGUA: Chontales: 1 female, 5 males. TB# 15336, 17805-17809 ( BMNH) . PANAMA: 1 male. TB# 20319 ( UCDC) . PANAMA: Coclé: 2 females, 3 males. TB# 17799, 20297- 20299, 20322 ( NMNH) . country not specified: 6 females, 5 males. TB# 20309-20311, 20317-20318 ( NMNH); TB# 20308 ( CASC); TB# 20323 ( NHMB); TB# 15333 , 17844 , 21780 ( BMNH) .

Diagnosis: This species is similar to H. tricornis in size and form. The type specimen for this species has poorly developed horns, but in other specimens, they can be as long as those seen in H. tricornis . The puncturing on the pronotum is primarily of one size. Most punctures are fine, but on the lateral portions of the pronotum, there may be at most one or two larger punctures. The hypomeron is smooth and does not have any punctures. The female is similar in most character states except the presence of the horns ( Fig. 17 ).

Redescription: Male. Size: 9.5— 11 mm; 3—4 mm.

Head. Clypeal horn long (4:1; 5:1); not emarginate (6:0); twice as wide at base as one supraorbital horn (7:2); projected forward (8:0); almost smooth (9:0). Supraorbital horns long, thin and not curved (10:1; 11:1; 12:0; 14:0); projecting perpendicular to head (13:1); almost smooth (15:0). Third antennomere less than 1.5 times size of fourth and more than 1.5 times size of second (18:1; 19:2). Vertex and frons almost smooth (26:0; 28:0). Anterior corners of clypeus rounded (29:1). Gena not extending laterally past eye (36:0). Mentum trapezoidal and lightly setose (40:0; 41:1); mentum medially and longitudinally produced (43:1). Groove on mandible present, continuing to connection point to cranium (44:1). Labrum fully setose (39:1).

Thorax. Pronotal puncturing of one size (54:0); coarse punctures, if present (at most 3), are located on lateral portions of pronotum. From lateral view, pronotum not arched (58:0). Lateral edges of pronotum subparallel (61:1). Marginal edge of pronotum widely expanded by twice length fine punctures (62:2). Row of cuticular teeth present on posterior edge of metasternum (77:1). Anterior edge of pronotum reaching middle of eye but not past it (63:1). Hypomeron and prosternum not punctate (75:0; 67:0); not setose (70:0; 76:0). Mesepisternum finely punctate, punctures smaller than eye facet (71:1); separated by more than one diameter (72:0); not setose (73:0). Elytra striate and punctate (46:1; 47:1), punctures separated by more than one diameter (48:1). Elytral interstices convex and punctate (49:1); punctures larger than one fourth of strial puncture size (50:0); separated by more than one diameter (51:1).

Legs. Tarsi pubescent. Cuticular outgrowth present on proximal two protarsomeres (86:1). Apical spurs on tibia present (85:1). Less than seven socketed spines on distal third of lateral edge of protibial (81:0; 82:0). Spines on entire medial edge of protibia (83:1). Apex of protibiae, with brush of setae (84:1).

Abdomen. First three visible abdominal sternites laterally rugulose (89:1; 90:1; 91:1). All abdominal sternites finely punctate and not setose (94:0).

Female. Similar to male, except as follows: Cuticle next to eye on intraocular space raised and extending transversely inwards (23:2); intraocular space impinging on eye (24:1). Puncturing on vertex and frons smaller than one eye facet (25:1; 27:1). Clypeus finely punctate (31:1); punctures concentrated in center (32:1); Clypeus tumid (33:1).

Distribution ( Fig. 18 ): Brazil (Santa Catarina), Guatemala (Petén), Costa Rica (Alajuela, Limón, Guanacaste), Panama (Coclé), Cuba, Mexico (Tamaulipas, Tabasco), Nicaragua (Chontales).

Figures

FIGURE 1: Male genitalia in Hypogena. A. H. brasilica dorsal. B. H. brasilica lateral. C. H. canaliculata dorsal. D. H. canaliculata lateral. E. H. brasiliensis dorsal. F. H. laevicollis dorsal. G. H. cryptica dorsal. H. H. cryptica lateral. I. H. depressa dorsal. J. H. depressa lateral. K. H. hirsuta dorsal. L. H. hirsuta lateral. M. H. marginata dorsal. N. H. marginata lateral. O. H. tricornis dorsal. P. H. tricornis lateral. Q. H. vacca dorsal. R. H. vacca lateral

FIGURE 17: Hypogena canaliculata, Lectotype and Paralectotype. Top: dorsal view, lateral view, and labels of Lectotype, male. Bottom: Dorsal view, lateral view, and labels of Paralectotype female.

FIGURE 18: Distribution of Hypogena canaliculata. Based on 67 databased specimens.