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).

Figures

FIGURES 25–27. Anagrus (Anagrus). 25a, head, anterior; 25b, head, posterior; 26, antenna; 27, wings.

FIGURES 28, 29. Anagrus (Anagrus). 28, mesosoma, dorsal; 29a, metasoma, dorsal; 29b, metasoma, ventral.

FIGURES 30–32. Anagrus (Paranagrus). 30, body, lateral; 31, antenna; 32, wings.