Eupelmus elongatus Risbec, 1951

Fusu, Lucian, Ebrahimi, Ebrahim, Siebold, Cedric & Villemant, Claire, 2015, Revision of the Eupelmidae Walker, 1833 described by Jean Risbec. Part 1: the slide mounted specimens housed at the Muséum national d’Histoire naturelle in Paris, Zoosystema 37 (3), pp. 457-480 : 471-472

Eupelmus elongatus Risbec, 1951

Eupelmus elongatus Risbec, 1951a: 208-211 . Original description, ♀ ♂, Senegal, Bambey; 1951b: 1112 (biology); 1960a: 628 (catalogued, biology). — Hedqvist 1970: 436 (catalogued). — Herting 1973: 97 (catalogued). — Agyen-Sampong 1978: 91 (biology). — Nonveiller 1984: 122 (catalogued). — Etienne & Delvare 1987: 197-198, 202 (biology, keyed).

Eupelmella elongata – Risbec 1950a: 166, 169-172 (nomen nudum); 1951a: 209 (lapsus calami); 1960a: 628 (lapsus calami).

CURRENT TAXONOMIC STATUS. — Eupelmus (Eupelmus) elongatus Risbec, 1951 n. stat. [new subgeneric status].

TYPE MATERIAL. — General collection. Lectotype ♀ (here designated), card mounted, labeled as: “Ex gousse/ niébé; Muséum Paris/ Bambey ( Sénégal)/ Risbec 1945; LECTOTYPE [red label]; LECTOTYPE / Eupelmus / elongatus Risb. / Det. Fusu L. 2011”.

Four ♀ paralectotypes: “Ex/ Piezotra -/ chelus; Bambey/ Sénégal; J. Risbec / 28.XII.46; Eupelmus / elongatus Risb. [red label]” .

MNHN.14.33. Ten ♀ paralectotypes plus one Pteromalidae female, dry mounted in a wooden slide, with some cotton fibers to prevent them moving around, labeled in Risbec’s handwriting: “P. Piezotrachelus / varium Wagn/ N° 367 s- niebe/ Bambey Wa; Eupelmella / elongata Risb / + Bruchobius laticeps Ashm. ” .

MNHN.14.34. One ♀ and five ♂ paralectotypes, all dry mounted under one round coverslip, labeled in Risbec’s handwriting: “ex Piezotrachelus / varium / Eupelmella / elongata Risbec ”.

MNHN.14.35. Sixteen ♂ paralectotypes plus three Eulophidae males, all dry mounted under one coverslip, labeled in Risbec’s handwriting: “P. Piezotrachelus / varium Wagn/ N° 367 s- niebe/ Bambey Wa/ Eupelmella elongata ♂ ”.

MNHN.14.36. One ♀ and about 10 ♂ paralectotypes, plus Pteromalidae and Eulophidae to a total of 17 specimens, dry mounted under one coverslip and partly fragmented, labeled in Risbec’s handwriting: “ Eupelmella / elongata / Risbec/ ex. Piezotrachelus / varium Wagn./ N° 367 s- niebe/ Bambey Wane”.

MNHN.14.37. Two ♀ paralectotypes plus one E. ( Macroneura ) female, dry mounted under one coverslip, labeled in Risbec’s handwriting: “ Eupelmella / elongata / Risbec/ ex. Piezotrachelus / varium Wgn./ 392. Wane/ Bambey”.

MNHN.14.38. Two ♀ and two ♂ paralectotypes, balsam mounted in pairs under two different coverslips, labeled in Risbec’s handwriting: “ Eupelmella / elongata Risbec / ex Piezotrachelus / varium Wagn/ Bambey”.

MNHN.14.39. At least 12 ♀ and four ♂ paralectotypes, plus one Eupelmus orientalis female and specimens of Eurytomidae , Pteromalidae , Eulophidae and Pteromalidae , all dry mounted under one coverslip, labeled in Risbec’s handwriting: “ex Piezotrache [lus]/ varium / Eupelmella / elongata Risbec / Bambey”.

MNHN.14.40. Three ♀ paralectotypes plus two females of Eupelmus (Macroneura) psychephagus Risbec , dry mounted under one coverslip, labeled in Risbec’s handwriting: “ Eupelmella / elongata / Risbec/ ex. Piezotrachelus / varium Wgn./ 363./ Bambey Wane”.

MNHN.14.41. Two ♀ paralectotypes, dry mounted under one coverslip, labeled in Risbec’s handwriting: “ex gousses niébé/ Bambey. 9.1.47/ Eupelmella / elongata Risbec ”.

MNHN.14.42. One ♀ paralectotype plus one true bug, dry mounted under one coverslip, labeled in Risbec’s handwriting: “s- épi mil/ Wane. Bambey/ 1947/ Eupelmella / elongata Risbec ”.

MNHN.14.43 and 14.44 listed in box 14 under E.elongatus are missing. MNHN, ex. coll. ORSTOM.2.31. Ten ♀ paralectotypes, dry mounted in a wooden slide, with some cotton fibbers to prevent damage, labeled in Risbec’s handwriting: “P. Piezotrachelus / varium Wgn/ N° 367 s- niebe/ Bambey Wa; Eupelmella / elongata Risb. ” .

MNHN, ex. coll. ORSTOM.2.33. Fourteen ♀ and three ♂ paralectotypes, dry mounted under one coverslip, labeled in Risbec’s handwriting: “Ex gousses/ niébé/ Eupelmella / elongata Risbec ”.

MNHN, ex. coll. ORSTOM.2.35. Numerous paralectotypes of both sexes, plus many other chalcid wasps, mostly Pteromalidae , all dry mounted under two coverslips, labeled in Risbec’s handwriting: “Ex Piezotra -/ chelus varium / Eupelmus [overwritten to:] Eupelmella / psychephaga [crossed off]/ elongata Risbec ”.

NON TYPE MATERIAL. — MNHN, ex. coll. ORSTOM.2.32. One ♀ and one ♂, dry mounted and crushed under one coverslip, labeled with ink directly on glass: “ ♀ ♂ / Eupelmella / elongata / Risbec”.

MNHN, ex. coll. ORSTOM.2.34: one ♂ dry mounted and crushed under a coverslip, labeled with ink directly on glass: “ Eupelmella / elongata / Risbec/ ♂ ”.

REMARKS

This species was described from an unstated number of females and males reared from larvae of Piezotrachelus varius in pods of black-eyed pea (niébé) and one female collected from the head of millet. Specimens on slides ORSTOM.2.32 and ORSTOM.2.34 are not from the type series as there is no host data on the labels and the slides are labeled distinctly from the others, in black ink directly on glass. The general collection contains five card mounted specimens that must have originated from slides MNHN.14.43 and MNHN.14.44 that are currently missing. Although the remounting is not mentioned on the labels, they are similar in content to the labels on the remaining slides. The type material is extremely heterogeneous, containing at least two species of Eupelmus from the urozonus speciesgroup, one with the ovipositor shorter than the metatibia and another with the ovipositor longer than the metatibia. The lectotype here selected belongs to the species with the longer ovipositor, as mentioned in the original description: “Tibias, 0,76 mm […] tarière, 0,95 mm.”. Etienne & Delvare (1987) give a short description of this species in a key for the parasitoid species associated with Solanum aethiopicum L. ( Solanaceae ). They mention the visible part of the ovipositor being as long as hind tibia, but this is probably due to different preservation techniques. Many specimens in the type series of E. elongatus have the second valvifer quite obviously exposed as a result of drying and hence apparent ovipositor sheath length is greater than hind tibia (but length of third valvulae about as long as hind tibia, measured according to Al khatib et al. [2014]). In critical point dried specimens of the same species gaster frequently nearly extends to apex of second valvifer and hence apparent ovipositor sheath length is sometimes about as long as hind tibia (usually at least slightly longer).

Risbec (1951a) was not consistent in using the name elongatus . Eupelmus elongatus was used in the heading of the original description (p. 208), but Eupelmella elongata on page 209 (for fig. 125). Similar to Eupelmus psychephagus , the confusion was most likely generated by the earlier inclusion of this species in the genus Eupelmella under the name Eupelmella elongata (nomen nudum) ( Risbec 1950a).