Cryptopone, Emery, 1893

Fernandes, Io & Delabie, Jhc, 2019, A New Species of Cryptopone Emery (Hymenoptera: Formicidae: Ponerinae) from Brazil with Observations on the Genus and a Key for New Word Species, Sociobiology 66 (3), pp. 408-413 : 411

Key to the workers of Cryptopone species from the New Word (modified from Mackay & Mackay, 2010).

1. Mandibles nearly elongate-triangular, oblique masticatory margin nearly continuous with basal border, the latter having 4 - 5 teeth; tooth at mid-length of mandible noticeably longer than others; petiolar node as seen from side subtriangular, tapered markedly to a narrowly rounded apex; Mexico (Veracruz), Central America to southeastern Brazil (São Paulo) ............................................................. C. guianensis (Weber) 1’. Mandibles triangular, basal and masticatory margins meeting at distinct angle, with at least 6 teeth, approximately equal in length; petiole as seen from side nearly subquadrate, feebly tapered dorsally .........…..........….......…………........ 2

2. Dorsal face of petiole narrowly convex, shorter than posterior margin in lateral view; anterior half of subpetiolar process translucent and conspicuously larger; United States (Missouri south to Florida), Mexico, Central America at least as far south as Panama ……………............... C. gilva (Roger) 2’. Dorsal face of petiole broadly convex, nearly equal in length to posterior margin in lateral view; anterior half of subpetiolar process not translucent; Peru east to the Guianas, south to Bolivia..................................................................... 3

3. Small species TL:>5.00 mm; mandible with 7 teeth; clypeus is slightly concave medially with a small raised medial tooth along the anterior margin; Caribbean Islands, Colombia to Brazil (São Paulo) ................................. C. holmgreni (Wheeler)

3’. Large species TL:>7.00 mm; mandibles with at least 7 teeth; clypeus medially convex and unarmed (Rondônia) ...... ....................................................................... C. pauli sp. nov