Dicopus, Enock, 1909

Huber, John T., Read, Jennifer D. & Triapitsyn, Serguei V., 2021, Illustrated key to the genera and catalogue of Mymaridae (Hymenoptera) in the Afrotropical region, Zootaxa 5036 (1), pp. 1-166 : 27

DICOPUS Enock, 1909

( Figs 112–119 )

Dicopus Enock, 1909: 455 . Type species: Dicopus minutissimus Enock, 1909 , by monotypy. See Huber et al. (2020) for generic synonyms and their type species.

Diagnosis. Vertex separated from occiput by a medially divided vertexal trabecula ( Fig. 112b ); mandibles when closed pointing ventrally ( Fig. 112 ), each with one short and one long tooth; female antenna with funicle 7-segmented and fu 2 about equal to fu 1 or fu 3 and clava with a short apical nipple ( Fig. 113 ); fore wing extremely narrow, with narrowest point about one venation length distal to venation, then distinctly widening to apex ( Fig. 114 ); hind wing also narrow for about 4 venation lengths beyond hamuli then becoming uniformly wider to apex ( Fig. 114 ).

Discussion. Dicopus belongs to the Alaptus group of genera together with Alaptus , Callodicopus , Dicopomorpha and Litus . It is most similar to Dicopomorpha in having the female antenna with funicle clearly 7-segmented but the fore wing is narrower, the head ventral to the eyes narrows distinctly, each mandible has one large and one small tooth and is directed ventrally.

Afrotropical hosts. Psocoptera?

Important reference. Mathot (1972).

Figures

FIGURES 112–114. Dicopus sp. 112a, head, anterior; 112b, head posterior; 113, antenna; 114, wings. Scale bars: 112, 113 = 100 μm; 114 = 200 μm.

FIGURES 115, 116. Dicopus sp. 115, mesosoma, dorsal; 116, metasoma, dorsal (inset: genitalia seen through gaster). Scale bars = 50 μm.

FIGURES 117, 118. Dicopus lilliput Mathot, holotype. Democratic Republic of the Congo, Bas-Zaire, Njili forest, litter under a log, 10.viii.1969; 117, habitus; 118, holotype slide. Scale bar = 500 μm.

FIGURE 119. Dicopus lilliput Mathot, holotype. 119a, body, dorsal; 119b, head, anterior, seen through body + rest of body, ventral. Scale bars = 100 μm.