Camptoptera, Foerster, 1856

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 : 21-22

CAMPTOPTERA Foerster, 1856

( Figs 69–78 )

Camptoptera Foerster, 1856: 116 , 119. Type species: Camptoptera papaveris Foerster, 1856 , by monotypy. See Huber et al. (2020) for other generic synonyms and their type species.

Camptoptera (Zemicamptoptera) Ogloblin & Annecke 1961: 302 . Type species Camptoptera (Zemicamptoptera) semialbata Ogloblin & Annecke , by original designation. Syn. n. of Camptoptera (Camptoptera) Foerster.

Eofoersteria Mathot, 1966: 231 . Type species: Eofoersteria camptopteroides Mathot, 1966 , by original designation. Syn. & stat. n. Treated here as a subgenus.

Diagnosis. Head posteriorly with median vertical coronal sulcus extending from vertexal suture to meet postorbital sulcus and postorbital sulcus extending laterally from above foramen to below eye; mandible with 1 tooth ( Fig. 72 ); female antenna with funicle 7-segmented and fu 2 ring-like, much shorter than fu 1 or fu 3 ( Figs 71 , 73 ) or 6-segmented without ring segment ( Fig. 78 ); fore wing narrow, with posterior margin concave and wing apex slightly but usually distinctly curved ( Fig. 74 ), usually with one longitudinal row of microtrichia ( Figs 71 , 74 ) but occasionally fore wing wider, with several rows of microtrichia; tarsi 5-segmented, except 4-segmented in one species due to fusion of apical two tarsal segments, resulting in segment 4 being twice as long as any of the preceding tarsal segments ( Fig. 77 ); petiole narrow and slightly longer than wide ( Fig. 70 ), sometimes with a laterally projecting lamella at about midpoint.

Discussion. Camptoptera belongs to the Camptoptera group of genera. In the Afrotropical region this group also includes Camptopteroides , Ptilomymar and Stephanocampta . Huber & Lin (1999) had also included Callodicopus in the group, but on balance of features, particularly the mesophagma projecting into the gaster, Callodicopus fits better in the Alaptus group rather than the Camptoptera group in which the mesophragma does not project through the petiole into the gaster.

At least one Afrotropical Camptoptera species has the propodeum with translucent lamina ( Fig. 75 ), somewhat as in Stephanocampta but smaller, and fore wing narrow. Another has the fore wing fairly wide, with several rows of microtrichia but no translucent lamina. In C. (Camptoptera) diademata (Mathot) and C. (Eofoersteria) camptopteroides (Mathot) the funicle ring segment is absent ( Figs 77, 78 ). Camptoptera (Eofoersteria) is one of the few taxa ( Ptilomymar is the other) that clearly belongs among the numerous genera with 5-segmented tarsi even though it has only 4-segmented tarsi, the apical two likely having fused together without trace of a suture between them. Eofoersteria is given subgeneric status because of fusion of the last two tarsal segments, a feature probably due to the extremely small body size of the species. Tarsal fusion in Mymaridae is so unusual that it is given subgeneric status rather than simply being treated only as a species group within Camptoptera . Here we treat C. (Zemicamptoptera) Ogloblin & Annecke, syn. n. at most as a species group within Camptoptera (Camptoptera) , as here formally recognized for the first time, because the only absolute feature that distinguishes the subgenus is a reduced number of flagellomeres in males. Females of C. (Zemicamptoptera) species cannot be distinguished by any absolute feature from females of C. ( Camptoptera ) species. The species group includes C. (Camptoptera) africana Ogloblin & Annecke and possibly several other extralimital species with very small adults ( Triapitsyn 2014).

Afrotropical hosts. Unknown.

Important references. Ogloblin & Annecke (1961), Mathot (1966), Huber & Lin (1999).

Figures

FIGURES 69–71. Camptoptera diademata (Mathot). 69, holotype slide; 70, habitus; 71, antenna + opposite surface of clava of same antenna. Scale bars: 70 = 500 μm; 71 = 50 μm.

FIGURES 72–74. Camptoptera sp. 72, head, anterior; 73, antenna; 74, wings. Scale bars: 72, 73 = 100 μm; 74 = 200 μm.

FIGURES 75, 76. Camptoptera sp. 75, mesosoma; dorsal; 76a, genitalia seen through gaster; 76b, metasoma, dorsal. Scale bars: 75, 76b = 100 μm; 76a = 50 μm.

FIGURES 77, 78. Camptoptera (Eofoersteria) camptopteroides (Mathot), paratype. 77, habitus; 78, antenna. Scale bars: 77 = 200 μm; 78 = 50 μm.