New genus and species of flea beetles (Coleoptera, Chrysomelidae, Galerucinae, Alticini) from Puerto Rico, with comments on flea beetle diversity in the West Indies and a key to the West Indian Monoplatini genera Author Konstantinov, A. S. Author Konstantinova, A. A. text ZooKeys 2011 155 61 87 http://dx.doi.org/10.3897/zookeys.155.2124 journal article http://dx.doi.org/10.3897/zookeys.155.2124 1313-2970-155-61 Distigmoptera Blake Figs 15-27 Distigmoptera Blake, 1943: 209 (type species Distigmoptera apicalis Blake, 1943, by original designation). Discussion. Distigmoptera was first recorded in the West Indies by Medvedev (2004) who described a new species from the Dominican Republic. Fourteen previously described species of this genus are known to occur in the USA, Canada, Mexico, and Costa Rica. Among the West Indian genera of Monoplatini, Distigmoptera is mostly similar to Apleuraltica Bechyne . Apart from characters mentioned in the key (see below), Distigmoptera can be differentiated from Apleuraltica by the antennae that are not clearly clubbed, antennomere six in males is only slightly different from antennomere seven (the antennae are clearly clubbed, antennomere six in males is markedly different from antennomere seven in being much shorter and narrower than seven in Apleuraltica ) and by the metatibial apex without a sharp denticle (the metatibial apex has a sharp denticle in Apleuraltica ). Figures 15-21. Distigmoptera chamorrae : 15 habitus, dorsal view, male 16 habitus, frontalview, female 17 habitus, lateral view, male 18 habitus, dorsal view, female 19 metatibia and metatarsus, lateral view 20 claw, male 21 claw, female. Figures 22-27. Distigmoptera chamorrae : 22 median lobe of aedeagus, ventral, lateral and dorsal views 23 spermatheca 24 vaginal palpi 25 tignum 26 abdominal sternites, female 27 last abdominal tergite.