Myrmoteras, Forel, 1893

Zettel, Herbert & Sorger, Daniela Magdalena, 2011, New Myrmoteras Ants (Hymenoptera: Formicidae) From The Southeastern Philippines, Raffles Bulletin of Zoology 59 (1), pp. 61-67 : 62

Key to Philippine species of Myrmoteras (workers and

gynes)

1 Head ( Fig. 1 ) and pronotum ( Fig. 3 ) smooth and shiny .... 2

– Head ( Figs. 7, 11 ) and pronotum ( Fig. 9 ) granulate and dull. ............................................................................................... 3

2 Median frontal sulcus distinct ( Fig. 1 ). Body dark brown ..... ....................................................... M. glabrum , new species

– Median frontal sulcus absent. Body dark orange red ............. ......................................................................... M. insulcatum

3 Posterior face of temple (behind ridge) finely granulate. Mandible Index ± 1.45 ( Fig. 7 ). Petiolar node wide (lateral aspect, Fig. 8 ). Antennomeres 2 and 3 of subequal length ( Fig. 7 ) ................................................. M. mcarthuri , new species

– Posterior face of temple (behind ridge) smooth, without any sculpture. Mandible Index Ṡ 1.30 ( Fig. 11 ). Petiolar node narrow (lateral aspect). Antennomere 2 approximately 1.5 times as long as antennomere 3 ( Fig. 11 ) ....................... M. williamsi

Figures

Figs. 1–6. Myrmoteras (Myagroteras) glabrum, new species. 1–4, paratype worker (Natural History Museum Vienna HYM # 01-0000069, Antbase.net # 00991; HW = 0.85 mm, TL = 4.35 mm), 5–6, paratype gyne (coll. H. Zettel, Vienna; HW = 0.91 mm, TL = 4.62 mm): (1, 5) Head, full face view. (2, 6) Habitus, lateral view. (3) Habitus, dorsal view. (4) Labels. © (1–4) NHMW Image Database & www. antbase.net, (5–6) www.antbase.net, published with permission.

Figs.7–12. 7–10, Myrmoteras (Myagroteras) mcarthuri, new species paratype worker (Natural History Museum Vienna HYM # 01-0000068, Antbase.net # 00953; HW = 0.91 mm, TL = 4.75 mm). 11–12, Myrmoteras (Myagroteras) williamsi, gyne from the type locality (coll. H. Zettel, Vienna; HW = 0.96 mm, TL = 4.60 mm): (7, 11) Head, full face view. (8) Habitus, lateral view. (9) Habitus, dorsal view. (10, 12) Labels. © (7–10) NHMW Image Database & www.antbase.net, (11–12) www.antbase.net, published with permission.