Taxonomy of the ant genus Nesomyrmex Wheeler (Formicidae, Myrmicinae) in the Afrotropical region, with a review of current species groups and description of a new species of the N. angulatus group from Mozambique Author Garcia, Francisco Hita B7ADF56F-935D-4BD8-ADB3-50E96F8BB463 Okinawa Institute of Science and Technology, Onna-son, Okinawa, Japan. & urn: lsid: zoobank. org: author: B 7 ADF 56 F- 935 D- 4 BD 8 - ADB 3 - 50 E 96 F 8 BB 463 & Corresponding author: fhitagarcia @ gmail. com fhitagarcia@gmail.com Author Mbanyana, Nokuthula 157A51ED-7C85-4CA3-84E4-B7BD1E2A7E8F Iziko South African Museum, Cape Town, South Africa. & Email: nmbanyana @ iziko. org. za & urn: lsid: zoobank. org: author: 157 A 51 ED- 7 C 85 - 4 CA 3 - 84 E 4 - B 7 BD 1 E 2 A 7 E 8 F nmbanyana@iziko.org.za Author Audisio, Tracy Lynn C821F482-744F-467A-A480-1E353001A51F Okinawa Institute of Science and Technology, Onna-son, Okinawa, Japan. & Email: tracy @ troglophile. com & urn: lsid: zoobank. org: author: C 821 F 482 - 744 F- 467 A-A 480 - 1 E 353001 A 51 F tracy@troglophile.com Author Alpert, Gary D. 5BD71BB5-1EDA-4E05-84E1-FE71EA366767 Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts, U. S. A. & Email: garydalpert @ gmail. com & urn: lsid: zoobank. org: author: 5 BD 71 BB 5 - 1 EDA- 4 E 05 - 84 E 1 - FE 71 EA 366767 garydalpert@gmail.com text European Journal of Taxonomy 2017 2017-01-06 258 1 31 journal article 22478 10.5852/ejt.2017.258 35792d9c-db1a-45f1-b983-f52105f8d004 2118-9773 3776244 Nesomyrmex denticulatus ( Mayr, 1901 ) Figs 10B , 11 C–D, 12A, 15 Leptothorax denticulatus Mayr, 1901: 5 (w.q.), South Africa . Leptothorax ( Goniothorax ) denticulatus – W.M. Wheeler 1922: 891 . Nesomyrmex denticulatus – Bolton 2003: 272 (see also Bolton 1982: 328 ; Mbanyana & Robertson 2008: 38 ). Diagnosis The following character combination separates N. denticulatus from the remainder of the group: eyes with 10–12 ommatidia in longest row; in profile mesosomal dorsum with conspicuously impressed metanotal groove; in dorsal view petiolar node laterally denticulate; subpetiolar process with a conspicuous tooth anteriorly followed by a long cuticular flange which runs back to the postpetiolar junction; dorsum of propodeum with standing hairs; first gastral tergite with standing hairs evenly distributed throughout. Diagnostic comments The three species, N. denticulatus , N. innocens and N. stramineus , are morphologically very similar and can be well separated from the other species by the laterally denticulate petiolar node. The separation of these three can be challenging though. Nesomyrmex denticulatus is larger in general body size, has larger eyes with more ommatidia, and a subpetiolar process with a conspicuous tooth anteriorly, followed by a long cuticular flange which runs back to the postpetiolar junction, and slightly denser pilosity. Biology This species usually nests in cavities of branches on trees and bushes previously excavated by woodboring beetles, lepidopteran larvae or termites ( Mbanyana & Robertson 2008 ). It is found in a variety Fig. 15. Nesomyrmex denticulatus ( Mayr, 1901 ) (CASENT0914923). A . Body in profile view. B . Body in dorsal view. C . Head in full-face view. D . Map of Africa and Madagascar showing currently known distribution. of more arid habitats, such as late succession Fynbos, Succulent Karoo with large bushes, along edges of Southern Afrotemperate Forest, and possibly also Albany Thicket ( Mbanyana & Robertson 2008 ). Distribution Nesomyrmex denticulatus is only known from South Africa , where it seems to be relatively common in the Western and Eastern Cape regions.