Paratrikona ovata Blake, 1938

Simões, Marianna V. P., 2017, Revision of the Greater Antilles genus Paratrikona Spaeth, 1923 (Coleoptera: Chrysomelidae: Cassidinae: Dorynotini), Zootaxa 4238 (3), pp. 417-425 : 420-421

Paratrikona ovata Blake, 1938

(Figs 7–9)

Paratrikona ovata Blake 1938: 51 (type locality: ‘ Haiti, Grande Rivière’ )

Type specimen. Holotype (unsexed), pinned: ‘M.C.Z. | Type | 23159 [p, r, cb] || Grande Riviere | W.M. Mann Haiti [p, sl] || Paratrikona | ovata | Blake [hw, sl] || MCZ Type | 23159 [hw, sl]’ ( USNM).

Additional specimens examined. Known only from the two type specimens.

Diagnosis. As the name suggests, P. ovata is readily characterized by the conspicuously oval body shape in dorsal view, dorsal ground color yellow with brown posterior margin of pronotum and coarse and irregular punctures on elytra, ventral ground color dark brown, except for antennomeres I–IX, tibiae and tarsomeres. In lateral view, with high and conical postscutellar tuberculum followed by slightly sinuous slope.

Blake (1938) indicated that the most similar species to P. ovata within the genus is P. turrifera , differing by presenting elytra with no ‘spine’ (= postscutellar tuberculum) and less regular and dense puncturation. I add that P. turritella has body elongate, with ventral color yellow, pronotum 1.7 X wider than long, elytral punctures rounded and anterior slope to postcutellar tuberculum straight. Conversely, P. ovata has body oval, with ventral ground color dark brown, except for antennomeres I–IX, tibiae and tarsomeres, pronotum 2.1 X wider than long, with posterior margin strongly sinuous, elytral punctures quadrangular, and anterior slope to postscutellar tuberculum sinuous.

Distribution. Haiti (Grande Rivière) ( Blake, 1938).