Isoforma planata OPITZ, 2015

Opitz, Weston, 2015, Systematics of the checkered beetle subfamily Platynopterinae SPINOLA (Coleoptera Cleridae), Linzer biologische Beiträge 47 (2), pp. 1513-1572 : 1537-1538

Isoforma planata OPITZ nov. sp.

( Figs 72 , 157 , 174 )

Holotype: ♀. Mexico, Chiapas, Laguna Belgica , 16 km NW Ocozocoautla, 970 m, 7-VI-1990, H. & A. Howden ( CMNC).

Diagnosis: Within Isoforma only in the members of this species is the 9 th antennomere subquadrate.

Description: Size: Length 12.0 mm; width 7.0 mm. Form: As in Fig. 157 . Color: Cranium mostly black, vertex with narrow testaceous streak; pronotum mostly flavotestaceous, with two paralateral black lines; elytra bicolorous, basal half testaceous, distal half black. Head: Antennal capitulum very long ( Fig. 72 ), each capitular antennomere longer than funicle; antennal carina very prominent; frons as wide as eyes; EW/FW 20/20. Thorax: Pronotal anterior margin linear, not projected at middle; side margins of disc rounded at middle, quadrate; PW/PL 75/75; elytra conspicuously flared; discal carinae not present; EL/EW 320/120. Abdomen: Female pygidium not incised at distal margin.

Natural history: The holotype was collected during June, at 970 m.

Distribution ( Fig. 174 ): Known only from the type locality.

Etymology: The trivial name planata is a Greek adjective derived from platys (= wide). I refer to the extensive width of the elytra.

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. 174: Geographic distribution of species as noted.