A remarkable Dominican amber species of Cylindromyrmex with Brazilian affinities and additions to the generic revision (Hymenoptera: Formicidae).

Abstract

Cylindromyrmex inopinatus n. sp. from Dominican amber is described on two winged gynes. The new amber species appears to be the sister species of the Recent Brazilian longiceps. C. inopinatus and C. longiceps can be easily distinguished from all other members of the genus by the head about 1/3 longer than broad and by the narrowest known frontal carinae. C. inopinatus is the third amber fossil species of the genus as compared with 10 known extant species. The previously unknown male of C. longiceps André is also described. Additional distribution data are given for the species brasiliensis, brevitarsus, escobari, godmani, longiceps, meinerti and whymperi. The identification key to the males of de Andrade (1998) is partially re-worked in order to include longiceps.

Nomenclatural Acts

inopinatus de Andrade, 2001 (Cylindromyrmex), spec. n.