Alaptus, Westwood, 1839

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 : 25

ALAPTUS Westwood, 1839

( Figs 14–18 )

Alaptus Westwood, 1839: 79 . Type species: Alaptus minimus Westwood, 1839 , by monotypy. See Huber et al. (2020) for generic synonyms and their type species.

Diagnosis. Antenna with funicle 5-segmented ( Fig. 15 ); supraorbital trabecula with alternating sclerotized and unsclerotized sections ( Figs 14a , 17 ); mandible with 2 teeth; head posteriorly with curved horizontal sulcus medially dorsal to foramen ( Fig. 14b ); fore wing posterior margin with an abrupt, recurved notch behind venation and, thereafter, posterior margin almost straight and gradually diverging from anterior margin almost to wing apex ( Fig. 16 ); petiole much wider than long and almost indistinguishable from propodeum or gt 1 ( Figs 17, 18 ); mesophragma projecting into gaster; gt 1 longitudinally divided medially ( Fig. 17 ). Male flagellum 8-segmented.

Remarks. Alaptus belongs to the Alaptus group of genera. Among these, Alaptus is the only genus with the funicle 5-segmented. Males have the flagellum 8-segmented (at least 9 segments in other genera of the group).

Neotropical hosts. Psocoidea: Caeciliusidae .

Important reference. Triapitsyn (2017).

Figures

FIGURES 14–16. Alaptus. 14a, head, anterior; 14b, head, posterior; 15, antenna; 16, wings.

FIGURES 17, 18. Alaptus. 17, head + mesosoma, dorsal; 18, male metasoma, dorsal (inset: genitalia).