Aleiodes nigrifemur van Achterberg & Shaw, 2020

van Achterberg, Cornelis, Shaw, Mark R. & Quicke, Donald L. J., 2020, Revision of the western Palaearctic species of Aleiodes Wesmael (Hymenoptera, Braconidae, Rogadinae). Part 2: Revision of the A. apicalis group, ZooKeys 919, pp. 1-259 : 1

Aleiodes nigrifemur van Achterberg & Shaw sp. nov. Figs 504-505 , 506-518

Type material.

Holotype, ♀, (RMNH), " Greece, Peloponn[esus], Chelmos, 1700 m, 29.v.1987, H. Teunissen".

Molecular data.

None.

Biology.

Unknown; the only known specimen was collected at the end of May which gives no clue of voltinism or how the winter is passed.

Diagnosis.

Maximum width of hypoclypeal depression 0.6 × minimum width of face (Fig. 513 ); OOL of ♀ 1.6 × longer than diameter of posterior ocellus and rugulose (Fig. 514 ); width of clypeus intermediate apically, but strongly protruding in lateral view (Fig. 515 ); lobes of mesoscutum densely punctate, coriaceous between punctures; precoxal area widely rugose, and posteriorly punctate; vein 1-CU1 of fore wing 0.2 × vein 2-CU1 (Fig. 506 ); hind tarsal claws rather robust and with few yellowish pectinal teeth (Fig. 517 ); 3rd antennal segment of ♀ and basal third of hind femur black; basal third of hind tibia pale yellowish, contrasting with black basal half of hind femur. Similar to A. morio (Reinhard), but has pterostigma black (pale brown in A. morio ), fore wing darkened apically (subhyaline), vein 1-M of hind wing linear with M+CU (angled); metasoma largely yellowish brown (entirely blackish) and eye in lateral view comparatively small (eye larger).

Description.

Holotype, ♀, length of fore wing 7.2 mm, of body 8.2 mm.

Head. Antennal segments of ♀ 62, length of antenna 1.1 × fore wing, its subapical segments medium-sized (Fig. 516 ); frons largely rugose; OOL 1.6 × diameter of posterior ocellus, rugulose and shiny; depression near posterior ocellus rugose; vertex largely rugose, rather shiny; clypeus rugulose; ventral margin of clypeus intermediate and distinctly protruding forwards (Fig. 515 ; as face dorsally); width of hypoclypeal depression 0.6 × minimum width of face (Fig. 513 ); length of eye 1.3 × temple in dorsal view (Fig. 514 ); vertex behind stemmaticum rugulose; clypeus largely above lower level of eyes; length of malar space 0.4 × length of eye in lateral view.

Mesosoma. Mesoscutal lobes densely punctate, rather shiny and interspaces coriaceous; precoxal area of mesopleuron widely rugose but posteriorly punctate, and area above it densely punctate or rugulose; metapleuron densely punctate dorsally and rugose ventrally; metanotum with short median carina anteriorly; scutellum remotely punctate, with some lateral rugae; propodeum rather short and flat, coarsely reticulate-rugose, medio-longitudinal carina complete, and without protruding carinae laterally.

Wings. Fore wing: r 0.5 × 3-SR (Fig. 506 ); 1-CU1 slightly oblique, 0.2 × 2-CU1; r-m 0.7 × 3-SR; 2nd submarginal cell medium-sized (Fig. 506 ); cu-a inclivous, straight; 1-M curved posteriorly; 1-SR wider than 1-M; surroundings of M+CU1, 1-M and 1-CU1 largely glabrous. Hind wing: marginal cell linearly widened, its apical width 1.9 × width at level of hamuli (Fig. 506 ); 2-SC+R short and longitudinal; m-cu present anteriorly; vein 2-1A comparatively long (Fig. 506 ); M+CU:1-M = 24:37; 1r-m 0.65 × 1-M.

Legs. Tarsal claws rather robust, bristly setose and few small yellowish teeth (Fig. 517 ); hind coxa largely punctate and with some oblique striae dorsally; hind trochantellus rather robust; length of hind femur and basitarsus 4.5 and 5.1 × their width, respectively; length of inner hind spur 0.45 × hind basitarsus.

Metasoma. First tergite rather flat medially, 0.8 × as long as wide apically; 1st tergite and anterior half of 2nd tergite with medio-longitudinal carina; 1st-2nd tergites densely longitudinally rugose; 3rd tergite (except posterior third) mainly rugulose; medio-basal area of 2nd tergite triangular and rather distinct (Fig. 509 ); 2nd suture rather deep and crenulate; remainder of metasoma superficially micro-sculptured or smooth; 4th and apical half of 3rd tergite without sharp lateral crease; ovipositor sheath wide, with long setae and apically truncate (Fig. 505 ).

Colour. Black; maxillary palp apically, basal 0.4 of hind tibia and tegulae pale yellowish; mandible (but with dark brown patch), side of pronotum dorso-posteriorly, fore and middle tibiae, hind basitarsus basally, 1st tergite apically, 2nd-5th tergites orange brown; remainder of legs dark brown; remainder of palp, veins and pterostigma dark brown; lateral lobes of mesoscutum (except anteriorly and medially) dark reddish brown; wing membrane subhyaline, but apically infuscated (Fig. 506 ).

Distribution.

Greece (main).

Etymology.

The species is named after its black femur; niger is Latin for black, dark, dusky.

Figures

Figures 504, 505. Aleiodes nigrifemur sp. nov. ♀, holotype 504 habitus lateral 505 ovipositor sheath lateral.

Figures 506 - 518. Aleiodes nigrifemur sp. nov. ♀, holotype 506 wings 507 mesosoma lateral 508 mesosoma dorsal 509 1 st- 3 rd metasomal tergites dorsal 510 fore femur lateral 511 hind femur lateral 512 base of antenna 513 head anterior 514 head dorsal 515 head lateral 516 apex of antenna 517 outer hind tarsal claw 518 antennae.