Acorystus Townes

Scherrer, Marcus V., Santos, Bernardo F. & Aguiar, Alexandre P., 2010, Generic redefinition, key and two new species of Acorystus To w ne s (Hymenoptera: Ichneumonidae: Cryptinae), Zootaxa 2721, pp. 28-38: 31

publication ID

http://doi.org/ 10.5281/zenodo.199900

persistent identifier

http://treatment.plazi.org/id/4340CE70-FFFB-045A-73B2-FF6FFA40FD9D

treatment provided by

Plazi

scientific name

Acorystus Townes
status

 

Key to the species of Acorystus Townes 

1. Head orange, ferruginous near ocelli. Propodeum surface irregular, rugose, with large punctures that are separated from each other by about 1.3 x their own diameter ( Figs 12, 13View FIGURES 12, 13) ........................................................ A. fulvus  Townes

- Head black with whitish marks. Propodeum smooth, with very short punctures that are separated from each other by at least 4.0x their own diameter .................................................................................................................................... 2

2. Female flagellum with white band covering about 5 flagellomeres. Supra-antennal area with a white horn ( Fig. 4View FIGURES 4 – 11. 4 – 7). Orbital band present from supra-clypeal to supra-antennal areas. Propodeum with anterior transverse carina centrally not strongly arched forward, with about the same curvature on its entire length ( Fig. 3View FIGURES 2, 3. 2). Crossvein 1 cu-a basad of 1 M+Rs by about 0.15 its own length ........................................................... A. albicornis  Scherrer et Santos, sp. nov.

- Female flagellum with white band covering about 15 flagellomeres ( Figs 1View FIGURE 1, 2View FIGURES 2, 3. 2). Supra-antennal area with a black horn ( Fig. 8View FIGURES 4 – 11. 4 – 7). Orbital band fully absent ( Fig. 2View FIGURES 2, 3. 2). Propodeum with anterior transverse carina centrally distinctly arched forwards ( Fig. 2View FIGURES 2, 3. 2). Crossvein 1 cu-a opposite to vein 1 M+Rs ( Figs 1View FIGURE 1, 2View FIGURES 2, 3. 2)............................................................. .................................................................................................................. A. circumflexus  Scherrer et Santos, sp. nov.