Dolichoderinae

Yoshimura, Masashi & Fisher, Brian L., 2011, A revision of male ants of the Malagasy region (Hymenoptera: Formicidae): Key to genera of the subfamily Dolichoderinae, Zootaxa 2794, pp. 1-34 : 7-8

Key to genera of males of Dolichoderinae in the Malagasy region

This key, based on the character matrix in Table 3, may not apply outside of the Malagasy region, as variations in genus-level characters elsewhere have not been fully explored. Distinctions between two globally distributed genera, Tapinoma and Technomyrmex , are mentioned separately in the remarks for Tapinoma .

1. In ventral view, harpago greatly expanded mesally, forming a distinct and more or less flat ventral face ( Fig. 22).................................................................................................... Technomyrmex

- In ventral view, harpago narrow, without a distinct ventral face ( Figs 23).......................................... 2

2. Distal portion of abdominal sternum IX broadly spatulate ( Fig. 24)....................................... Aptinoma

- Distal portion of abdominal sternum IX bilobed with central margin deeply or shallowly concave ( Figs 25–27)........... 3

3. Masticatory margin of mandible wholly covered with many serrate denticles ( Fig. 75)....................... Tapinoma

- Masticatory margin of mandible with one to several large teeth, not wholly covered with many serrate denticles ( Figs 73, 74).................................................................................................... 4

4. Mandible broadly spatulate, with a single long, acute tooth present on distal apex of mandible ( Fig. 74). Petiole narrowly attached to abdominal segment III ( Fig. 19). Basal portion of aedeagus with narrow ventral lobe ( Figs 36, 41)....... Ravavy

- Mandible triangular, with several stout teeth present on masticatory margin ( Fig. 73). Petiole broadly attached to abdominal segment III ( Fig. 18). Basal portion of aedeagus without ventral lobe ( Figs 34, 43)......................... Ochetellus 1. Medial hypostoma absent ( 1); present (0)