Diadegma insulare (Cresson, 1865)

Gadallah, Neveen S., Edmardash, Yusuf A., Mansour, Amany N. & Imam, Ahmed I., 2023, Parasitoid wasps (Ichneumonoidea) collected from faba bean fields, Kharga Oasis, New Valley, Egypt, with new records and the description of a new species, Zootaxa 5389 (5), pp. 501-544 : 525

Diadegma insulare (Cresson, 1865)

Fig. 15 (A, B)

Material examined: 1♀, Kharga Oasis (New Valley) [25°31’34.0”N 30°37’19.9”E], May, 2022, white pan trap in V. faba intercropped with B. napus .

Diagnosis. Body (including antennae) black, tegula and humeral plate whitish; legs orange to yellowish, hind tibia with a subbasal and apical dark bands, whitish at base and between dark bands; ovipositor reddish, ovipositor sheath dark brown to black; occipital carina complete; antenna with 24 antennomeres; areolet of fore wing complete (vein 3rs-m present); vein 2m-cu of fore wing received slightly after the middle of areolet; area superomedia of propodeum narrowed posteriorly, indicated by slight angulation, transversely striated and granulated between striations; a median longitudinal carina could be seen on propodeum, posterior to costula; metasomal T 5, T 6 not emarginate, T 7 with slight emargination; ovipositor distinctly longer than metatibia, about 0.7× as long as hind tibia.

Distribution in the MENA: Egypt, Israel, Morocco.

Comments: Characters of this specimen completely agree with Diadegma insulare in Azidah et al. ’s key (2000: 381, couplet 5). It also agrees with Azidah et al. (2000, figs 16, 28, 30, 37, 43). Diadegma insulare has been recorded as a parasitoid of Plutella xylostella L. which is one of the major pests defoliating the canola crop, B. napus in different regions of the world ( Putman 1973; Cortez-Mondaca & Marciás-Cervantes 2007). This is the first record for the presence of D. insulare in association with faba bean intercropped with canola.

Figures

FIGURE 15. Diadegma insulare (Cresson, 1865) (♀): A, lateral habitus; B, propodeum.