Arescon, Walker, 1846

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 : 37-38

ARESCON Walker, 1846

( Figs 40–44 )

Arescon Walker, 1846: 50 . Type species: Mymar dimidiatus Curtis, 1832 , by monotypy. See Huber et al. (2020) for generic synonyms and their type species.

Diagnosis. Funicle 5-segmented ( Fig. 41 ); vertex with pale lines surrounding ocelli rectangular and also connected by pale lines extending from each corner of stemmaticum to supraorbital trabeculae ( Fig. 40b ); mandible with 4 teeth ( Fig. 40a ); dorsellum diamond-shaped, the anterior and posterior margins not parallel ( Fig. 43 ); fore wing with venation extending at least 0.7× wing length ( Fig. 42 ); marginal vein 2× as long as submarginal vein more than 2× as long as parastigma and with 2 distal macrochaeta, the second one at about midpoint of marginal vein length; postmarginal vein apparently absent ( Fig. 42 ); tarsi 5-segmented.

Remarks. Arescon belongs to the Arescon group of genera. These are the only genera with a fore wing venation at least 0.6× wing length (in Chrysoctonus , only males have wings). Arescon is most similar to Tinkerbella , which differs by the hind wing without setae along most of its anterior margin, frenum with a faint longitudinal median sulcus, and tarsi 4-segmented.

Neotropical hosts. Hemiptera : Membracidae ?

Important reference. Ogloblin (1957c) [as Xenomymar Crawford ].

Figures

FIGURES 40–42. Arescon. 40a, head, anterior; 40b, head posterior; 41, antenna; 42, wings.

FIGURES 43, 44. Arescon. 43, mesosoma, dorsal; metasoma, lateral.