Pentilia nadine Gordon and González, 2019

Gordon, Robert D., F, Guillermo González & Hanley, Guy A., 2019, South American Coccinellidae (Coleoptera), Part XXI: systematic revision of South American Pentilia Mulsant (Cryptognathini), Insecta Mundi 729 (729), pp. 1-27 : 15

17. Pentilia nadine Gordon and González , new species

Description. Male holotype. Length 2.7 mm, width 2.6 mm; dorsal surface shiny except head slightly alutaceous. Color dark brown; head yellow with brown clypeal apex; pronotum with lateral 1/3, anterior 1/3 yellow ( Fig. 89 ); venter yellow except pro-, meso-, metasternun yellowish brown. Head punctures small, separated by less than a diameter; pronotal punctures smaller than on head, separated by a less than to twice a diameter; elytral punctures small, extremely sparse, nearly absent; prosternum with small punctures separated by less than a diameter; pro-, meso-, metasternum nearly impunctate, with small, widely scattered punctures; abdominal ventrites 1, 2 with small punctures separated by about 1–5 times a diameter; ventrites 3–4 finely, densely punctured medially; ventrite 5 finely, densely punctured. Head with frons parallel sided, 1.2 times as wide as eye, clypeal apex widely emarginate, lateral angle abruptly curved ( Fig. 90 ); eye canthus long, about 3/4 width of eye. Prosternum with lateral carina not visible. Epipleuron strongly descending externally. Postcoxal line on basal abdominal ventrite curved, extended 3/4 distance to rear margin of ventrite. Genitalia with penis guide long, basal lobe as long as paramere, sides parallel in basal 3/4, curved to rounded apex in apical 1/4; paramere slender, curved, apex rounded ( Fig. 91, 92 ); penis slender, apex attenuate, dorsal, ventral margins separated before apex, lower margin curved; basal capsule slender, inner arm curved, apically rounded, outer arm tapered from base to abruptly rounded apex ( Fig. 93 ).

Female. Unknown.

Variation. None observed.

Type material. Holotype male; Trinidad: Port of Spain. viii.1905. F. Birch. B.M.1927-540. ( BMNH) . Paratypes; 3, same data as for holotype. ( BMNH) .

Remarks. Male genitalia must be examined to identify Pentilia nadine , but the nearly impunctate elytron and venter also will aid recognition.

Figures

Figures 83–99. Pentilia spp. 83-88) Pentilia egena. 83) Habitus. 84) Frons. 85) Penis guide ventral. 86) Penis guide lateral. 87) Penis. 88) Spermathecal capsule. 89-93) Pentilia nadine. 89) Habitus. 90) Frons. 91) Penis guide ventral. 92) lateral. 93) Penis. 94-99) Pentilia kari. 94) Habitus. 95) Frons. 96) Penis guide ventral. 97) Penis guide lateral. 98) Penis. 99) Spermathecal capsule.