Taxonomic revision of the ant (Hymenoptera: Formicidae) genus Paraparatrechina in the Afrotropical and Malagasy Regions Author Lapolla, John S. Author Cheng, Chiu H. Author Fisher, Brian L. text Zootaxa 2010 2387 1 27 journal article 10.5281/zenodo.193808 9f229dfd-c07e-444d-b063-45a884c0adb9 1175-5326 193808 Key to Paraparatrechina workers in the Afrotropical and Malagasy Regions 1. Eyes small relative to head length (REL ≤ 16)............................................................................................................. 2 - Eyes medium to large relative to head length (REL ≥ 17) ........................................................................................... 5 2. Eyes consisting of less than 10 facets; polymorphic, with clearly expressed major caste; West Africa ...................... 3 - Eyes consisting of more than 10 facets; monomorphic; Madagascar ........................................................................... 4 3. Head, scapes, and legs with numerous erect setae............................................................................................ bufonus - Head with only sparsely scattered erect setae; scapes and legs without erect setae............................................. weissi 4. Scape with decumbent pubescence; scapes surpass posterior margin by approximately length of the first 3–4 funicu- lar segments .......................................................................................................................................................... myops - Scape with appressed pubescence; scapes surpass posterior margin by approximately length of the first 2–3 funicular segments......................................................................................................................................................... ocellatula 5. Mesosoma elongate in lateral view, with pronotum gently rising towards mesonotum............................................... 6 - Mesosoma compact in lateral view, with pronotum steeply rising towards mesonotum ............................................. 8 6. Propodeum with a short, angular dorsal face, and a long declivitous face; scape length < 0.6 mm ; Madagascar .......... ............................................................................................................................................................................. glabra - Propodeum with rounded dorsal face, not conspicuously longer than declivitous face; scape length> 0.6 mm ; East & West Africa ................................................................................................................................................................... 7 7. Scape length> 0.72 mm ; tibiae same brown color as mesosoma; protrochanter brown as in mesosoma, but meso/ metatrochanters may be lighter brown; mandibles and antennae typically same brown color as head ......... splendida - Scape length < 0.72 mm ; tibiae whitish to brownish-yellow; all trochanters white; mandibles and antennae yellow- ish-brown, contrasting with brown head...................................................................................................... concinnata 8. Yellow to brownish-yellow species, although may possess a conspicuously darker gaster that is brown in color......9 - Brown to dark brown species with the gaster the same color as the head and mesosoma ......................................... 12 9. Gaster brown, conspicuously contrasting with yellow head and mesosoma............................................... umbranatis - Gaster brownish-yellow to yellow, not conspicuously contrasting with head and mesosoma ................................... 10 10. Smaller species (HL & SL < 0.4 mm ) ................................................................................................................ gnoma - Larger species (HL & SL> 0.4 mm ) .........................................................................................................................11 11. Head and scapes with decumbent pubescence; REL ≤ 22................................................................................ subtilis - Head and scapes with appressed pubescence; REL ≥ 23..................................................................................... oreias 12. Mesosomal dorsum (primarily pronotum and mesonotum) much lighter (almost white in some specimens) than remainder of mesosoma, head and gaster; white colored pubescence covering body ...................................... albipes - Mesosomal dorsum not much lighter than remainder of mesosoma, head and gaster; golden colored pubescence cov- ering body ...................................................................................................................................................... brunnella