Eustochus, Haliday, 1833

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 : 174-178

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.3844780

persistent identifier

https://treatment.plazi.org/id/038A0765-FF7B-B9C1-48D5-FF3088F3FE98

treatment provided by

Plazi

scientific name

Eustochus
status

 

EUSTOCHUS Haliday, 1833 View in CoL View at ENA

( Figs 420–438 View FIGURE 420 View FIGURES 421–426 View FIGURES 427–433 View FIGURES 434–438 )

Eustochus Haliday, 1833a: 268, 1833b: 349 View in CoL . Type species: Mymar atripennis Curtis, 1832 View in CoL , by monotypy.

Diagnosis. Body length 640–1145 μm. Head, mesosoma, petiole dorsally, and coxae heavily sculptured with raised reticulations ( Figs 420 View FIGURE 420 , 421–425 View FIGURES 421–426 , 427–430 View FIGURES 427–433 ); antenna with clava 2-segmented and narrowed towards apex ( Fig. 420 View FIGURE 420 ); fore wing with 2 distal macrochaetae and marginal vein present between them, parastigma, marginal and stigmal veins together as long as submarginal vein ( Fig. 420 View FIGURE 420 ).

Discussion. Among the nine other Nearctic genera of the Polynema group ( Acmopolynema , Caraphractus , Cnecomymar , Kalopolynema , Mymar , Neomymar , Palaeoneura , Polynema , Stephanodes ), Eustochus is the sister genus to Caraphractus . Together they form a distinct subgroup distinguished by their heavily sculptured head, mesosoma, and petiole, at least dorsally.

Nearctic hosts. Unknown. An extralimital host is in Coleoptera ( Pricop & Moglan 2016) .

Important reference. Huber & Baquero (2007).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Mymaridae

Loc

Eustochus

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

Eustochus

Haliday, A. H. 1833: 268
Haliday, A. H. 1833: 349
1833
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