Isoforma subgilva OPITZ, 2015

Opitz, Weston, 2015, Systematics of the checkered beetle subfamily Platynopterinae SPINOLA (Coleoptera Cleridae), Linzer biologische Beiträge 47 (2), pp. 1513-1572 : 1538-1539

Isoforma subgilva OPITZ nov. sp.

( Figs 74 , 159 , 175 )

Holotype: ♀. St. Paulo d’ Olivenca ( Brazil), M. de Mathan, Juin-Juiliet 1883 ( MNHN).

Diagnosis: Within Isoforma only in the members of this species is the mostly flavotestaceous pronotum adorned with two very proximate vertical, centrally located, black lines.

Description: Size: Length 12.0 mm; width 6.0 mm. Form: As in Fig. 159 . Color: Cranium dark testaceous; pronotum mostly flavotestaceous, with two slightly separated paralateral dark brown lines; elytral bicolorous, basal half testaceous, distal half black. Head: Antennal capitulum very long ( Fig. 74 ), each capitular antennomere longer than funicle; antennal carina very prominent; frons slightly wider than eyes; EW/FW 23/26. Thorax: Pronotal anterior margin linear, not projected at middle; side margins of disc rounded at middle; PW/PL 82/68; elytra moderately flared; discal carinae slightly developed; EL/EW 290/95. Abdomen: Female pygidium not incised at distal margin.

Natural history: The holotype was collected within a June-July time frame.

Distribution ( Fig. 175 ): Known only from the type locality.

Etymology: The trivial name subgilva is a Latin adjective derived from prefix - sub (= less than) and gilvus (= yellow). I refer to the elytral color.

Figures

Figs 70-80: Antennae. (70) Isoforma fritilla, female; (71) I. goryi, female; (72) Isoforma planata, female; (73) Pilosirus brunoi, male; (74) Isoforma subgilva, female; (75) Pilosirus amazonicus, female; (76) P. fasciatus, female; (77) Platynoptera carti, male; (78) P. flavohumeralis, male; (79) P. humeralis, male; (80) P. lyciformis, male.

Figs 157-160: Habitus illustrations of (157) Isoforma planata, holotype; (158) I. plauta, holotype; (159) I. subgilva, holotype; (160) Pilosirus amazonicus, holotype.

Fig. 175: Geographic distribution of species as noted.