Anagrus, Haliday, 1833

Huber, John T., Read, Jennifer D. & Triapitsyn, Serguei V., 2024, Illustrated key to the genera and catalogue of Mymaridae (Hymenoptera) in the Neotropical region, Zootaxa 5557 (1), pp. 1-263 : 27-28

ANAGRUS Haliday, 1833

( Figs 25–32)

Anagrus Haliday, 1833a: 268 ; 1833b: 346. Type species: Ichneumon atomus Linnaeus, 1767 , by subsequent designation by Westwood, 1839: 78. See Huber et al. (2020) for generic synonyms and their type species.

Diagnosis. Face without subantennal sulcus ventral to each torulus ( Fig. 25a); clava 1-segmented ( Figs 26, 31), in lateral view often clearly asymmetrical, with dorsal margin usually strongly curved and ventral margin almost straight ( Fig. 26); ocellar triangle delineated by a stemmaticum, visible as pale lines ( Fig. 28); frenum completely longitudinally divided by a narrow or wide sulcus into paramedial plates, each plate at most not much longer than wide ( Fig. 28). Species of Anagrus (Anagrus) ( Figs 25–29) with fu 1 distinctly shorter than pedicel ( Fig. 26); species of Anagrus (Paranagrus) ( Figs 30–32) with fu 1 as long as pedicel ( Fig. 31).

Remarks. Anagrus belongs to the Anagrus group of genera. Anagrus is the only genus with clava 1-segmented. Females of the other genera in the group have the clava 2- or 3-segmented. The Neotropical region has species in the three subgenera, A. ( Anagrus ), A. ( Anagrella ) and A. ( Paranagrus ) but by far the most speciose is A. ( Anagrus ).

Neotropical hosts. Hemiptera , Lepidoptera (needs confirmation), Odonata.

Important references. Triapitsyn (2002a, 2015a).