Bruchophagus robiniae Zerova, 1970

Zerova, M. D., Fursov, V. N. & Klymenko, S. I., 2017, Distribution And Host Record Of Bruchophagus Robiniae (Hymenoptera, Eurytomidae) In Turkey, Vestnik Zoologii 51 (5), pp. 439-442 : 440-441

Bruchophagus robiniae Zerova, 1970 ( fig. 1–6 )

M a t e r i a l s t u d i e d. 1 ♀ (holotype), 18 ♀ and 6 Ơ (paratypes), Ukraine, Crimea, Massandra , coll. 19.09.1967, reared 10– 14.03.1968, from seeds of Robinia pseudoacacia L. (coll. Zerova) ; 4 ♀, Ukraine, Nikita , coll. 25.08.1969, reared 05.1970 (coll. Zerova) ; 4 Ơ, Tajikistan, Dushanbe, coll. 19.11.1966 (coll. Babaev) ; 3 ♀, Armenia, Erevan, coll. 21.08.1956 (coll. V. Trjapitzin) ; 1 ♀, Uzbekistan, Tashkent , coll. 1939 (coll. Yahontov) ; 17 ♀, 7 Ơ, Turkey, Ankara, Yenimahalle, Plant. Protect. Res. Center , 39°57’19” N 32° 48ʹ19˝ E (DMS, GPS), 20.01.2016, reared ex seeds Robinia viscosa Ventenat (coll. V. Fursov) .

3

Description. Female ( fig. 1 ). Length about 3.0 mm, (holotype 2.7 mm). Body stout with broad thorax and round abdomen. Body black, all coxae black, fore and mid femora black, hind femora brownish-black, all tibiae dark-brown, tarsi reddish–brown, fore wing venation yellow, tip of ovipositor dark; antennae dark, but scape reddish at the basis. Head and thorax (dorsal part) reticulate with uniform umbelicate pits, pubescence sparse and short. Head from above stout, some wider than pronotal collar, about 1.8 times as wide as long, POL / OOL ratio 2: 1. Head frontally broader than high in ratio, 55: 40; the height of eye longer than malar space as 15: 10; external clypeus margin straight; face with uniform and scarce pubescence. Antennae inserted some higher of middle of face; scape long, not reaching the mid ocellus, the first funicular segment some longer than wide (6: 4). 2–5 funicular segments square, equal in length club long, some longer than two previous flagellar segments, flagellum with short pubescence.

Mesosoma distinct convex laterally, pronotal collar transverse, ratio of width to length as 2.75: 1.0; propodeum with small punctures in the middle and some large punctures on the sides. Venation with short marginal vein, the postmarginal vein in 1.35 times longer than marginal vein, ratio of marginal, postmarginal and radial veins — 90: 111: 150. Mesopleura with fine reticulation. Metasoma with very short petiolus, abdomen nearly as long as mesosoma (ratio laterally 30: 28).

Male ( fig. 2 ). Petiolus short, shorter than hind coxa. Antennae with stout pedicellus, widening at the apex, funicle 4–segmented, the first segment a little longer than 2–4th, club 3-segmented, some longer than two previous funicular segments, pubescence, with setae, their length 1,1 times longer than width of segments.

Diagnosis. This species is morphologically mostly close to B. coluteae Bouček , from which it is differentiated by shorter and rounded abdomen, expanded and convex mesosoma, and longer postmarginal vein (postmarginal vein in 1.35 times longer than marginal). Male genitalia of B. robiniae with long digital sclerites, nearly 2.0 times longer than width, and hooks on digital sclerites massive, but in B. coluteae digital sclerites nearly quadrate, and hooks slender.

Biology. Phytophagous species inside the seeds of Robinia viscosa Ventenat (Fabaceae) .

D i s t r i b u t i o n. Turkey, Ukraine (Crimea), Bulgaria, Armenia, Uzbekistan, Tajikistan.

This investigation of the second co-author was supported by the Scientific and Technological Research Council of Turkey (TÜBİTAK) (Programme 2221 — Fellowships for Visiting Scientists and Scientists on Sabbatical Leave, project number — 1059B211500675). We express a great acknowledgement to TÜBITAK for the support and greatly appreciate the kindness of Dr A. Gumovsky (Kyiv, Ukraine) for help with taking some microphotos. Authors are grateful to John Phipps (Kalamata, Greece) for valuable linguistic correction of the manuscript.

Figures

Fig. 1– 6. Bruchophagus robiniae Zerova: 1, 3–5 — female; 2, 6 — male; 1, 2 — lateral view; 3 — head, 4 — marginal and radial veins, 5, 6 — antenna.