Onychotillus apiculus Opitz, 2022

Opitz, Weston, 2022, Revision of the checkered beetle genus Onychotillus Chapin (Coleoptera: Cleridae: Tillinae), Insecta Mundi 2022 (913), pp. 1-16 : 3

Onychotillus apiculus Opitz , new species

Figures 12 , 23 .

Type material. Holotype: Male. Type locality: Dominican Republic, Provincia de Santiago, Mount Diego de Ocampo, 3,000-4,000, VIII-1938, Darlington ( MCZC).

Diagnosis. As in the last species, the last antennomere is elongate. The yellow pronotum is highly setose. The elytra are minutely cribrate. Lastly, the slight patch of setae at the elytral apex is more prominent. These characteristics will distinguish the members of this species from congeners.

Description. Size. Length 6.0 mm; width 2.0 mm. Form. As in Fig. 12 . Color. Clypeus yellow, rest of cranium mostly black, epicranium yellow; pronotum mostly yellow; elytra bluish; legs black. Head. Cranium finely punctate, frons much wider than length of pedicel; EW/FW 15/40. Thorax. Pronotum nearly glabrous, quadrate, slightly expanded at middle 1/2; subapical depression faintly expressed; collar narrow; PW/PL 75/75; elytra punctations striate, striae not reduced near elytral apex, elytral surface minutely cribrate; EL/EW 260/70; short elytral setae decumbent, long elytral setae recumbent. Abdomen. Aedeagus slightly sclerotized; phallobasic lobes well defined; phallus well defined; phallobasic apodeme rectangular, phallobasic rod present, phallic apex not adorned with cluster of spines ( Fig. 23 ).

Distribution. This species is known from the Dominican Republic.

Etymology. The specific epithet, apiculus , is a Latin word that has the meaning “point”.

Figures

Figures 11–14. Habitus of Onychotillus species. 11) Onychotillus androwi. 12) O. apiculus. 13) O. cinctipennis. 14) O. lineatus.

Figures 21–23. Aedeagus and tegmina. 21) Tegmen of Onychotillus androwi. 22) Tegmen of O. cinctipennis. 23) Aedeagus of O. apiculus.