Stiropius carinatus Cameron 1911

Broad, Gavin R., 2021, Taxonomic changes in Ichneumonoidea (Hymenoptera), and notes on certain type specimens, Zootaxa 4941 (4), pp. 511-541 : 521

8. Stiropius carinatus Cameron 1911

( Fig. 9 )

Current combination. Stiropius carinatus Cameron 1911 ( Braconidae : Rogadine)

Material examined. Stiropius carinatus Cameron 1911 ♀ holotype, NHMUK, Guyana: ‘Type’; ‘A leafminer’; ‘700’; ‘ P. Cameron Coll 1914-110’; ‘ Stiropius carinatus Cam. Type. Br. Guiana’; ‘ B.M.Type Hym. 2262’; ‘ NHMUK010635178 ’.

Comments. The type species of Stiropius Cameron is Stiropius carinatus Cameron 1911 , by original monotypy. Unfortunately, the type specimen seems never to have been redescribed, and possibly never located, after Cameron’s original description ( Cameron 1911), being regarded as a nomen dubium by Fischer (1977) and omitted from keys to Stiropius species ( Whitfield 1988; van Achterberg 1995). There is a specimen in NHMUK which was residing in a drawer of putative and manuscript types, labelled ‘ Stiropius carinatus’ in Cameron’s handwriting and has a ‘type’ label. Although there are some minor discrepancies (e.g., Cameron describes the occipital carina as missing when it is present), generally the specimen and the information on its labels (‘A leafminer’, ‘700’, ‘P. Cameron Coll 1914- 110’, ‘ Stiropius carinatus Type Br Guiana’) are a very good match for Cameron’s original description, therefore this specimen should be regarded as the holotype (type number 3c.2262).

Although van Achterberg (1995) states that the genotype was ‘examined’, this might have been a mistake as the type was not registered as such at the time and, in a footnote to couplet 13 of the key to Central and North American species (p. 134), the important features that van Achterberg lists for the identification of S. carinatus do not match the holotype, e.g., the third tergite has a median longitudinal carina. As a South American species, Stiropius carinatus is not included in the identification key, but it closely resembles the description of S. longicarinatus Achterberg 1995 .

Figures

FIGURE 9. Stiropius carinatus Cameron 1911 holotype female (NHMUK010635178): (a) lateral habitus; (b) metasoma, dorsal; (c) face, labels inset; scale bar = 1 mm.