20. Pentilia dianna Gordon and González, new species

Description. Male holotype. Length 2.4 mm, width 2.2 mm; dorsal surface shiny except head slightly alutaceous. Color dark brown; head yellow with clypeal apex narrowly brown; pronotum with lateral 1/3, anterior 1/3 yellow; abdomen becoming slightly paler toward lateral margin (Fig. 105); venter reddish yellow; abdomen yellow. Head punctures small, separated by less than a diameter; pronotal punctures as large as on head, separated by a less than to twice a diameter; elytral punctures smaller than on pronotum, barely visible, separated by 1 to 4 times a diameter; prosternum with small punctures separated by less than a diameter; mesosternum with punctures larger than on prosternum, separated by about a diameter; metasternum with punctures larger than on mesosternum, separated by less than to 3 times a diameter in median 1/3, absent in lateral 2/3; abdominal ventrites 1, 2 impunctate medially; ventrites 3–4 finely, densely punctured medially; ventrite 5 finely, densely punctured. Head with frons parallel sided, 1.5 times as wide as eye, clypeal apex widely emarginate, lateral angle abruptly curved (Fig. 106); eye canthus long, about 3/4 width of eye. Prosternum with lateral carina about 1/2 distance from apex to base of prosternum. 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, gradually narrowed at apical 1/3 to rounded apex, apex slightly emarginate; paramere slender, nearly straight, apex rounded (Fig. 107, 108); penis short, robust, apex lost and base lost, median portion (Fig. 109).

Female. Similar to male except head brown, lateral 1/4 of pronotum yellow; penis capsule not examined.

Variation. Length 2.1 to 2.4 mm, width 1.9 to 2.2 mm, elytral color varies from paler to darker brown.

Type material. Holotype male; British Guiana, Feb. 1954, Collector F. J. Simmonds. (USNM) . Paratypes 72, 7, same data as for holotype; 3, British Guiana, Feb. 1954, Collector F. J. Simmonds; 59, Georgetown, Br. Guiana, 9-24,’37, KA Bartlett, P.R. 1956 ; 1. Bot. Gard. Georgetown, Brit. Guiana, Sept.26, 1918 A706, Harold Morrison ; 1, On Coconut, Nickerie, Surinam, April 1951, Collector F. J. Simmonds (USNM) .

Remarks. The all brown dorsum of Pentilia dianna distinguish it from those species with black elytra. The male genitalia and Guyana type locality will further confirm an identification.