Pentilia egena Mulsant

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 : 14-15

16. Pentilia egena Mulsant

Pentilia egena Mulsant 1850: 502 ; Crotch 1874: 199; Gorham 1894: 180; Korschefsky 1931: 224; Blackwelder 1945: 450.

Pentilia minutus Kraatz 1873: 195 ; Korschefsky 1931: 224; Blackwelder 1945: 450.

Description. Male. Length 2.4 mm, width 2.3 mm; dorsal surface shiny except head densely alutaceous, pronotum with faint microsculpture. Color black ( Fig. 83 ); head yellow with black clypeal apex; pronotum with lateral 1/4 yellow; venter black except mouthparts, legs yellow; epipleuron brown medially; abdomen brownish yellow. Head with punctures concealed in alutaceous sculpture; pronotal punctures small, separated by less than to twice a diameter; elytral punctures slightly larger than on pronotum, separated by less than to 3 times a diameter; prosternal punctures large, separated by less than a diameter; mesosternal punctures as large as on prosternum, separated by a diameter or less; metasternal punctures as large as on mesosternum, separated by less than to 3 times a diameter, absent in lateral 1/3; abdominal ventrites 1, 2 with coarse punctures separated by a diameter or less; ventrites 3–4 with fine punctures separated by less than a diameter; ventrite 5 with dense, fine punctation. Head with frons parallel sided, 1.2 times width of eye, apex widely emarginate, lateral angle abruptly rounded ( Fig. 84 ); eye canthus long, about 3/4 width of eye. Prosternum with lateral carina on each side straight, extended from apex of intercoxal process 1/3 distance to apex of prosternum. Epipleuron strongly descending externally. Postcoxal line on basal abdominal ventrite evenly curved, extended 7/8 distance to rear margin of ventrite. Genitalia with basal lobe as long as paramere, basal 3/4 parallel sided, apical 1/4 narrowed to rounded apex; paramere robust, curved, apex rounded ( Fig. 85, 86 ); penis with apex shortly attenuate; basal capsule slender, inner arm short, curved, apex acute, outer arm tapered from base to abruptly rounded apex ( Fig. 87 ).

Female. Similar to male except head brown, pronotum entirely black; genitalia with spermathecal capsule long, slender, slightly widened from base of ramus to rounded apex of cornu ( Fig. 88 ).

Variation. Length 2.1 to 2.6 mm, width 2.0 to 2.4 mm. Female head, lateral 1/4 of pronotum may vary from described above to brown or black.

Type locality. “ Bresil.”

Type depository. Dejean collection, Musée des confluences, Lyon, France, lectotype here designated ( DCMC).

Geographical distribution. Argentina, Brazil, Ecuador, Peru, and Venezuela.

Specimens examined. Argentina. Posadas, Misiones ; Misiones, Dep. Concep , Sta. Maria. Brazil. Bahia ; Beltera ; Campinas ; Minas Gerais, Monte Verde, Vicosa ; Parana Foz de Iguassu ; Rio de Janeiro, Campo Grande, Paqueta I .; Sao Paulo. Ecuador. Manabi Prov., Manta. Peru. Chiclayo, Lambayeque ; Loreto, Padre Isla ; Piura. Venezuela. Aragua, El Limon ; Lara Carorita , Sector Andres Bello ; Carabobo, Taearique ; Lara Tarabana; Montalbán. ( CPGG) ( USNM) .

Remarks. Pentilia egena is distinguished from other species with a black dorsal surface only by examination of male genitalia. The lectotype is labeled “viridis”; remainder of green label illegible.

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.