Mycetomoellerius

Mycetomoellerius View in CoL

1. Median pronotal spines basally fused ( Fig. 2 View FIGURE 2 , A), rarely separated ( Fig. 2 View FIGURE 2 , B) [e.g. Mycetomoellerius agudensis ( Kempf, 1967) , M. holmgreni (Wheeler, 1925) , M. isthmicus ( Santschi, 1931) , M. ixyodus , M. kempfi ( Fowler, 1982) , and M. relictus ( Borgmeier, 1934) ].

2. Mandible dorsum smooth ( Fig. 2 View FIGURE 2 , C), sometimes basally striated ( Fig. 2 View FIGURE 2 , D), rarely completely striated ( Fig. 2 View FIGURE 2 , E) [e.g. Mycetomoellerius iheringi ( Emery, 1888) ].

3. Preocular carinae frequently well-developed ( Fig. 2 View FIGURE 2 , C), never curved towards the frontal carinae.

4. Pilosity ranging from sparse ( Fig. 2 View FIGURE 2 , G) to dense ( Fig. 2 View FIGURE 2 , H).

5. Postocular protuberance generally conspicuous ( Fig. 2 View FIGURE 2 , F).

6. Vertexal corners varying from rounded ( Fig. 2 View FIGURE 2 , E) to angled/spiny (Fig. C, D, F).

7. Posterior margin of head generally with strong median impression ( Fig. 2 View FIGURE 2 , F).

8. Postpetiole in lateral view without posteromedial impression (posterior margin rarely concave) ( Fig. 2 View FIGURE 2 , H, K).

9. First gastral tergite often with conspicuous pairs of lateral and median ridges ( Fig. 2 View FIGURE 2 , K).

10. Propodeal projections long in most species ( Fig. 2 View FIGURE 2 , H).

11. Promesonotum usually with unequally-sized projections ( Fig. 2 View FIGURE 2 , H) [some exeptions in M. atlanticus , M. farinosus ( Emery, 1894) , M. fiebrigi ( Santschi, 1916) , M. holmgreni , M. iheringi , M. oetkeri ( Forel, 1908) , M. pruinosus ( Emery, 1906) , M. tucumanus ( Forel, 1914) , M. turrifex ( Wheeler, 1903) , and M. zeteki ( Weber, 1940) ].

12. Antennal scape sometimes with basal lobe ( Fig. 2 View FIGURE 2 , C) [e.g. Mycetomoellerius cirratus , M. holmgreni , M. iheringi , M. kempfi , M. pruinosus , and M. tucumanus ]; microtubercles generally present ( Fig. 2 View FIGURE 2 , C, D, F).