Homotropus crassicornis Thomson 1890

Klopfstein, Seraina, 2014, Revision of the Western Palaearctic Diplazontinae (Hymenoptera, Ichneumonidae), Zootaxa 3801 (1), pp. 1-143 : 64

publication ID

https://dx.doi.org/10.11646/zootaxa.3801.1.1

publication LSID

lsid:zoobank.org:pub:E5F8C489-37F4-4A76-8E25-EFC65CDCA1D7

DOI

https://doi.org/10.5281/zenodo.6135708

persistent identifier

https://treatment.plazi.org/id/C1225000-FF9E-FFDA-B5BD-A16AFF52F921

treatment provided by

Plazi

scientific name

Homotropus crassicornis Thomson 1890
status

 

Homotropus crassicornis Thomson 1890

Homotropus brevicornis Thomson 1890 (synonym by homotypy; Thomson used the name crassicornis in his key but brevicornis in the description)

Homocidus asyntactus Schmiedeknecht 1926

Diagnosis. Fore wing length 5.1–6.5 mm. Antenna in females with 19 flagellomeres, with multiporous plate sensilla also present ventrally; in males with 20 flagellomeres and with narrow, long but usually inconspicuous tyloids on flagellomeres 2 / 3 to 12 / 13. Face strongly coriaceous and distinctly punctate, especially centrally. Clypeus weakly excised, lobes rounded. Mesopleuron smooth and shining, strongly punctate over most of its surface. Mesoscutum smooth and shining, strongly punctate. Hind coxa with hind surface smooth and shining between seta roots. Fore wing areolet open or closed. Propodeum with carination complete and strong, although carinae around petiolar area are sometimes only present as rugae; strongly rugose, especially on petiolar area. Metasoma of both sexes dorsoventrally depressed. First tergite with median dorsal carinae clearly surpassing middle of the tergite, usually almost reaching apex, rugose but without longitudinal wrinkles, 0.9–1.1 times as long as wide; second tergite basally irregularly rugose, 0.5–0.65 times as long as wide, second tergite 0.8–0.95 times as long as first tergite; spiracle of third tergite on dorsal part, above lateral fold.

Colouration of females. Antenna orange or brown. Head and mesosoma black, with yellow on central face patch separated from yellow on clypeus, yellow on mouthparts, sometimes hind corner of pronotum, tegula, upper mesepimeron; scutellum black. Legs orange, all coxae black, femora orange, hind tibia orange with apex dark, hind tarsus dark. Metasoma black.

Colouration of males. As in females but additionally with yellow face, yellow on antenna below, epicnemium and spot on lower mesopleuron, subtegular ridge, often small shoulder marks, mesepimeron, coxae apically, sometimes hind tibia yellow with dark apex.

Material examined. Syntype of Homotropus crassicornis = Homotropus brevicornis Thomson: France, Vendée, Saint-Germain-de-Prinçay. 1 ♀, at ZIL.

New for Hungary: Szászkézd, leg. Silbernagel. 1 ♀, at TMA . New for Slovenia: Untersteiermark, Podčetrtek, leg. Dr.Jäger, 2.VII. 1933. 1♀, at ZSM.

Germany (6), Hungary (1), Italy (1), Sweden (7).

Distribution. Western Palaearctic.

Figures. Propodeum ( Fig. 14 View FIGURE 14. A N), metasoma ( Fig. 15 View FIGURE 15. A B), propodeum ( Fig. 15 View FIGURE 15. A D), habitus ( Fig. 30 View FIGURE 30 F).

Notes. Syrphoctonus robustus Davis from North America is probably a synonym, but I have not seen any type material.

ZIL

Academy of Sciences, Zoological Institute

ZSM

Bavarian State Collection of Zoology

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Rutelidae

Genus

Homotropus

Loc

Homotropus crassicornis Thomson 1890

Klopfstein, Seraina 2014
2014
Loc

Homocidus asyntactus

Schmiedeknecht 1926
1926
Loc

Homotropus brevicornis

Thomson 1890
1890
Loc

crassicornis

Thomson 1890
1890
Loc

brevicornis

Thomson 1890
1890