Alaptus, Westwood, 1839

Huber, John T., Read, Jennifer D. & Triapitsyn, Serguei V., 2020, Illustrated key to genera and catalogue of Mymaridae (Hymenoptera) in America north of Mexico, Zootaxa 4773 (3), pp. 1-411 : 26-27

publication ID

https://doi.org/ 10.11646/zootaxa.4773.1.1

publication LSID

lsid:zoobank.org:pub:B1D8D67C-4FDC-477E-872F-E8BCD4D027FB

DOI

https://doi.org/10.5281/zenodo.3845059

persistent identifier

https://treatment.plazi.org/id/038A0765-FFCF-B96A-48D5-FA2B8888FE98

treatment provided by

Plazi

scientific name

Alaptus
status

 

ALAPTUS Westwood, 1839 View in CoL View at ENA

( Figs 31–60 View FIGURE 31 View FIGURES 32–34 View FIGURES 35–38 View FIGURES 39, 40 View FIGURES 41, 42 View FIGURES 43–48 View FIGURES 49–54 View FIGURES 55–60 )

Alaptus Westwood, 1839: 79 View in CoL . Type species: Alaptus minimus Westwood, 1839 View in CoL , by monotypy.

Parvulinus Mercet, 1912: 332 . Type species: Parvulinus auranti Mercet, 1912 , by monotypy. Synonymy by Girault, 1913 [127]: 221.

Metalaptus Malenotti, 1917: 339 . Type species: Metalaptus torquatus Malenotti, 1917 , by monotypy. Synonymy by Girault 1917 [330]: 1.

Diagnosis. Body length 205–555 μm; 210–580 μm in Triapitsyn (2017). Antenna with funicle 5-segmented ( Figs 35, 36 View FIGURES 35–38 ), exceptionally with a minute additional segment between fu 1 and fu 2 ( Fig. 33 View FIGURES 32–34 ); supraorbital trabecula with alternating sclerotized and unsclerotized sections ( Figs 32, 34 View FIGURES 32–34 , 41 View FIGURES 41, 42 ); mandible with 2 teeth ( Figs 47, 48 View FIGURES 43–48 ); head posteriorly with curved horizontal sulcus medially above foramen ( Fig. 44 View FIGURES 43–48 ); fore wing posterior margin with an abrupt, recurved notch behind venation and, thereafter, posterior margin almost straight and gradually diverging from anterior margin ( Fig. 39 View FIGURES 39, 40 ) almost to wing apex; petiole much wider than long and almost indistinguishable from propodeum or gt 1 ( Figs 49, 50, 54 View FIGURES 49–54 ); mesophragma projecting into gaster; gt 1 longitudinally divided medially ( Fig. 40 View FIGURES 39, 40 ). Male with flagellum 8-segmented ( Fig. 37 View FIGURES 35–38 ).

Discussion. Alaptus belongs to the Alaptus group of genera, together with Callodicopus , Dicopomorpha , Dico- pus and Litus . Its species are among the smallest Mymaridae in the Nearctic; only some Camptoptera , Dicopus and Dicopomorpha species are as small.

Nearctic hosts. Psocoptera. Despite the numerous records from species of Hemiptera (Coccoidea) catalogued by Peck (1951, 1963), Thompson (1958), Herting (1972), and Noyes (2019) additional, careful rearings are needed to be sure of the associations. Triapitsyn (2017) listed only Psocoptera as reliable host records.

Important reference. Triapitsyn (2017).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Mymaridae

Loc

Alaptus

Huber, John T., Read, Jennifer D. & Triapitsyn, Serguei V. 2020
2020
Loc

Metalaptus

Malenotti, E. 1917: 339
1917
Loc

Parvulinus

Mercet, R. G. 1912: 332
1912
Loc

Alaptus Westwood, 1839: 79

Westwood, J. O. 1839: 79
1839
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