Chartocerus beethoveni Girault, 1915

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 : 687-689

Chartocerus beethoveni Girault, 1915

urn:lsid:zoobank.org:act:B94D903A-6262-4516-A95B-FDB8C9D0C032

EOL taxon ID: 847846

( Figure 4 ; DOI:10.5281/zenodo.3893696)

Girault (1915, p. 71), as Signiphora beethoveni (original description).

Dahms (1983, p. 119): notes on type material.

Type material. Holotype female, QM Hy 2969 (T2969, T4418) , QMB, Chindera , New South Wales, 9 May 1914, A.P. Dodd, ‘sweeping forest on sand-ridges near coast’. Partially crushed; medially broken. On the same slide there are parts of Tetracnemoidea secunda ( Girault, 1915) (as Arhopoideus secundus Gir. ). A separate label indicates ‘ Signiphora beethoveni Gir. | ♀ type | 4418 ’. Described from Chindera, New South Wales, 9 May 1914, A.P. Dodd, ‘sweeping forest on sand-ridges near coast’. It is unambiguous that T2969 refers to the S. beethoveni specimen as it is cited in the original description. Dahms (1983) states that T4418 was a duplicate QM accession number for this specimen and had been cancelled.

Description. Female. Length (pronotum to apex of epiproct): 1.15 mm. Head and body appear uniformly light brown; head (frontovertex) slightly darker; fore legs and tarsi of all legs lighter brown to almost transparent. The wings are faded, mostly hyaline, but were described as with an infuscated band medially under the marginal vein. Head with frontovertex finely transversely striate, punctations typical of most Chartocerus not visible. Antennal scrobes well delimited. The morphology of the antenna is very distinctive, similar to that described for males of C. kerrichi : clava wide, ellipsoid, 3× longer than maximum width; 4 anelli (4:2:2:1), pedicel 2× as long as wide, scape 4× as long as wide and about ¾ of length of clava. Pronotum, mesoscutum, scutellum and metanotum transversally striate to finely, faintly reticulate; axillae reticulate, medial area of propodeum reticulate at lateral margins to striate medially, with cells 2–3× wider than long. Mesoscutum about 3.5× length of scutellum. Fore wing 3× as long as wide, marginal fringe slightly longer than ½ of maximum width of wing, 2 setae in submarginal vein, M1 lacking, 5 small setae in basal area of wing, 1 wing in costal cell. Mesotibia 2× as long as protibia; metatibia only slightly longer than protibia, mesofemur with 3 spines, mesobasitarsus about ½ length of mid tibia and mesotibial spur about same length of basitarsus, with 5 teeth. Mt1 bilobed.

Figures

Figure 4. Chartocerus beethoveni (Girault),holotype ♀, Queensland Museum Type Hy 2969. (a) habitus; (b) head; (c) antenna; (d) fore and hind wings; (e) mesosoma; (f) mesoscutellum, metascutum and propodeum.