Hypogena laevicollis ( Kulzer, 1962 )

Grey, Luna & Smith, Aaron D., 2020, A matrix-based revision of the genus Hypogena Dejean, 1834 (Coleoptera Tenebrionidae), Zootaxa 4780 (2), pp. 201-258 : 241-242

Hypogena laevicollis ( Kulzer, 1962)

( Figs 1 , 29 , 30 )

Ulosonia laevicollis Kulzer, 1962: 95 .

Type Material: HOLOTYPE (male) labeled: (a) “Hansa Humboldt / Sta. Satharina / Brazilien, Reitter”; (b) on red bordered paper “ HOLOTYPUS / Ulosonia laevicollis n. Sp. / det H. Kulzer 1961”; (c) On blue paper “Tenebrionid Base / Aaron D. Smith / Catalog # 20144” ( NHMB) . ALLOTYPE (female) labeled: (a) “Hansa Hum- boldt / Sta. Satharina / Brazilien, Reitter”; (b) on red bordered paper “ ALLOTYPUS / Ulosonia laevicollis n. Sp. / det H. Kulzer 1961”; (c) On blue paper “Tenebrionid Base / Aaron D. Smith / Catalog # 20145” ( NHMB) . PARATYPES (4 males, 3 females) labeled: (a) “Hansa Humboldt / Sta. Satharina / Brazilien, Reitter”; (b) on red bordered paper “ PARATYPUS / Ulosonia laevicollis n. Sp. / det H. Kulzer 1961”; (c) Tenebrionid Base numbers: 20143, 20137-20142 ( NHMB) . PARATYPES (1 male, 1 female) labeled: (a) on yellow bordered paper “ Paratype ”; (b) “Hansa Humboldt / Sta. Catharina / Brasilien Reitter”; (c) “ Paratypus / Ulosonia / laevicollis / det H.Kulzer 1961”; (d) “Brit. Mus. / 1961-329”; (e) Tenebrionid Base numbers: 20150-20151; ( BMNH) . PARATYPE (male) labeled: (a) “Vila Oliva / 19 - 2 - 52”; (b) Rio Grande do Sul / 3886 / Pe Buck Leg.” (c) “ PARATYPUS / Ulosonia laevicollis n. Sp. / det H. Kulzer 1961”; (d) on blue paper “Tenebrionid Base / Aaron D. Smith / Catalog # 20146”; ( NHMB) . PARATYPES (1 male; 2 females) labeled (a) on green paper “S Catharina / Nova Teutonia”; (b) on green paper “ F. Plaumann / leg 8 1935” (c) “ PARATYPUS / Ulosonia / laevicollis n. sp. / det H. Kulzer 1961”; (d) Tenebrionid Base numbers: 20147-20149; ( NHMB). Several additional paratypes were described in Kulzer (1962) but not examined during for the current study. Specimens should be in the Hungarian Natural History Museum, the Muséum National d’Histoire Naturelle and the Zoologische Staatssammlung .

Additional material examined: (8 males, 5 females): BRAZIL: 4 males, 3 females. TB# 20158-20159; mx_id 48027 ( NHMB) ; BRAZIL: Rio de Janeiro: 2 males. TB# 20160-20161 ( NHMB) . BRAZIL: Rondônia: 1 female. TB# 20156 ( FSCA) . country not specified: 2 males, 1 female. TB# 20152-20154 ( BMNH) .

Diagnosis: The clypeal horn of this species is short, conical and projects forward. The supraorbital horns are long, projecting initially perpendicularly and then bending to point anteriorly. They are also thinnest at the base and become more thick away from the head. The punctures on the pronotum are almost exclusively fine. The head of the male is smooth, whereas the head of the female has larger punctures, but not larger than one eye facet. This species is larger than others of this genus (11 mm). The female has similar characters as the male, except without horns ( Fig. 29 ).

Redescription: Male. Size: 9—11 mm; 3—4 mm.

Head. Clypeal horn short (4:1; 5:0); equal thickness to supraorbital horns (7:1); produced forward (8:0); finely punctate (9:1). Supraorbital horns long and thick (10:1; 11:1); thinner proximally and thicker apically; produced perpendicular to head (13:1); bent inwards toward each other (12:1); strongly bent to point anteriorly (14:2); finely punctate (15:1). Antennae with stellate sensoria (22:0). 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 not punctate (26:0; 28:0). Gena not extending laterally past eye (36:0). Anterior margin of clypeus flat, corners rounded (29:1). Mentum trapezoidal and flat (40:0; 43:0); finely punctate (42:1); not setose (41:0). Labrum fully setose (39:1). Groove on mandible present, continuing to attachment point on cranium (44:1).

Thorax. Only fine punctures present on pronotum (54:0; 56:0). From lateral view, pronotum slightly arched (58:1). Lateral margins of pronotum not parallel (61:0). Margins of pronotum narrowly expanded by less than twice the size (62:1). Pronotum narrowest anteriorly (59:1). Anterior edge of pronotum reaching middle of eye but not past eye (63:1). Hypomeron laterally rugulose (75:2); not setose (76:0). Prosternum finely punctate and not pubescent (67:1; 66:0); punctures separated by more than one diameter (68:0). Mesepisternum with punctures smaller than eye facet and separated by more than one diameter (71:1; 72:0). Row of cuticular teeth present on posterior edge of metasternum (77:1). Elytra striate and punctate (46:1; 47:1); punctures separated by less than one diameter (48:0). Elytral interstices flat and punctate (49:0); punctures smaller than one fourth size of strial punctures and separated by more than one diameter (50:0; 51:1).

Legs. Tarsi pubescent. Cuticular outgrowths present on proximal two tarsomeres (86:1). Tibiae with two apical spurs (85:1). Protibiae with more than 7 socketed spines on distal third of lateral edge (81:1; 82:0). Apex of tibiae with brush of setae (84:1).

Abdomen. First three abdominal segments laterally rugulose on anterior fourth of sclerite and coarsely punctate (89:2; 90:2; 91:2); last two abdominal segments finely punctate. Punctures of first three abdominal segments bearing setae 94:2).

Female. Similar to male, except as follows: Cuticle on intraocular space narrowly raised near eye (23:1). Intraocular space impinging on eye (24:1). Punctures on vertex and frons smaller than eye facet (25:1; 27:1). Clypeus with fine punctures that are spread evenly across surface (31:1; 32:2). Clypeus tumid (33:1).

Distribution ( Fig. 30 ): Brazil (Rondônia, Rio de Janeiro, Rio Grande do Sul).

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 29: Hypogena laevicollis, Holotype and Paratype. Top, Holotype, male: dorsal view, lateral view, and labels. Bottom, Paratype, female: Dorsal view, lateral view, and labels.

FIGURE 30: Distribution of Hypogena laevicollis. Based on 25 databased specimens.