Chartocerus hebes Girault, 1929

Molin, Ana Dal & Woolley, James B., 2020, Notes on types of Australian Chartocerus Motschulsky (Hymenoptera: Signiphoridae), Journal of Natural History 54 (9), pp. 681-702 : 693-696

Chartocerus hebes Girault, 1929

urn:lsid:zoobank.org:act:B7FBF276-AEC1-4F17-85CD-BA04AED6564E

EOL taxon ID: 848102

( Figure 8 ; DOI:10.5281/zenodo.3893739)

Girault (1929), as Matritia hebes (original description).

Dahms (1984, p. 682): notes on type material.

Type material. LECTOTYPE female [here designated]: QM T4416 , slide, with 1 female (‘Hy.235 | Matritia hebes Girault | also wing ♀ cotype | Ent. Div. Dep. Ag. & Stk., Qld. 4416’) . PARALECTOTYPES: 5 females.

In the original description, Girault mentions ‘three females from spider eggs in a leafnest, Tasmania’ ( Girault 1929, p. 311), but based on the labels and the fact the QM specimens are also labelled as ‘cotypes’, Dahms (1984) indicated the type series was actually composed of six specimens, considered syntypes. He reported on material at two institutions: 1 slide at SAM containing 3 females (Label: ‘ TYPE | Matritia hebes Girault | type ♀ S. Aus. Mus. Ent. Div. Dep. Ag. & Stk., Qld.’), plus 1 card and 1 slide labelled as cotypes at QM. The card contains 2 females and a glue spot where a third specimen (likely the slide one) was attached, labelled ‘ Tasmania || From eggs of spider in leaf nest || 4416 || Matritia hebes Girault | Cotype ♀ ’s | T 246546 (left), T 246547 (center)’, and the data from the QM material matches the original description. The slide-mounted female at QM ( T 4416) is here designated as lectotype, and the slide has been labelled accordingly.

Description. Female. Body dark, legs also dark, but posterior part of fore leg and apical part of metatibia lighter, tarsi yellowish. Wing infuscation differs from other species of Chartocerus because the apical part is darker than the basal part, with darkened areas extending below the stigmal vein. Head round in frontal view with deep punctations along inner margin of eyes, scattered on face and genae. Scape about 3× as long as wide, pedicel about 2× as long as wide, ring segments in ratios of 4:2:2:1, clava about 5× as long as wide. Scutellum about 1/3 of length of scutum. Fore wing with 2 setae on submarginal vein, 1 costal seta, 6 setae on marginal vein. Basitarsus of mid leg about 1/3 of length of mid leg. The propodeum and Mt1 were not cleared well enough in this preparation to be visualised; the same applies to the setation of the mesoscutum and scutellum.

Figures

Figure 8. Chartocerus hebes (Girault), Lectotype ♀, Queensland Museum Type HY 235. (a) habitus; (b) head; (c) fore and hind wings; (d) part of antenna; (e) mesosoma; (f) metasoma.