Bracon (Habrobracon) barbieri Belokobylskij, 2012

Belokobylskij, Sergey A. & Kula, Robert R., 2012, Review of the brachypterous, micropterous, and apterous Braconidae of the cyclostome lineage (Hymenoptera: Ichneumonoidea) from the Palearctic Region 3240, Zootaxa 3240 (1), pp. 1-62 : 38-40

Bracon (Habrobracon) barbieri Belokobylskij , sp. n.

( Figs 87–96 , 123 )

Type material. Holotype: female, Algeria, “Mers-el-Kebir, Oran, 25.1.[19]58, J. Barbier ”, “310” ( MNHN) . Paratype: 1 male with the same label as holotype ( MNHN) .

Description. Female. Body length 2.30 mm.

Head (dorsal view) 1.50 times as wide as median length, 1.50 times as wide as mesosoma at level of tegulae. Head behind eyes distinctly and regularly roundly narrowed. Transverse diameter of eye 1.40 times longer than temple (dorsal view). Ocelli small, in triangle with base about 1.10 times sides. POL 2.30 times Od, 0.60 times OOL. Antennal socket diameter about 1.50 times as wide as distance between sockets and distance between socket and eye. Eye glabrous, with weak emargination opposite antennal socket, 1.45 times as high as broad. Malar space 0.30 times as high as eye, about 0.80 times as high as basal width of mandible. Malar suture absent. Face width 0.90 times eye height and 1.60 times height of face and clypeus combined. Width of hypoclypeal depression about 1.20 times distance from depression to eye, 0.40 times width of face. Hypostomal flange very narrow. Mandible rather large. Head below eyes distinctly and almost linearly narrowed (frontal view). Palpi rather short, maxillary palpi with five palpomeres, labial palpi with three palpomeres.

Antenna rather thick, almost filiform, with 16 flagellomeres, 0.75 times as long as body. Scape 1.60 times longer than wide. First flagellomere 2.50 times longer than apical width, 1.10 times longer than second flagellomere. Penultimate flagellomere 1.60 times longer than wide, 0.65 times as long as first flagellomere, 0.80 times as long as apical flagellomere; the latter pointed apically and without spine.

Mesosoma more or less reduced in size, length 1.90 times height. Pronotum rather long, with distinct pronotal keel situated submedially. Mesoscutum weakly and roundly elevated above pronotum, 0.75 times as long as wide. Notauli more or less distinct and wide in anterior half, absent posteriorly. Prescutellar depression rather deep, distinctly crenulate. Scutellum distinct, without lateral carinae. Subalar depression distinct and crenulate. Mesopleuron with shallow wide oblique submedian furrow. Precoxal suture absent. Prepectal and postpectal carinae absent. Propodeum regularly roundly narrowed (lateral view). In dorsal view, mesonotum 4.00 times longer than pronotum, 1.50 times longer than propodeum. Tegulae present.

Wings. Size of wings strongly reduced, fore wing rather wide, rounded apically, with short veins, protruding shortly behind base of propodeum.

Legs. Fore tibia with several slender spines. Femora rather thick, without dorsal protuberance. Hind femur 3.70 times longer than maximum width. Hind tarsus 1.15 times longer than hind tibia. Hind tibia weakly widened posteriorly. Hind basitarsus 0.50 times as long as second through fifth tarsomeres combined. Second tarsomere of hind tarsus 0.60 times as long as basitarsus, 1.10 times longer than fifth tarsomere (without pretarsus). Claws weakly curved.

Metasoma 0.90 times as long as head and mesosoma combined. First tergum distinctly widened toward spiracular tubercles, then almost parallel-sided, with distinct spiracular tubercles in basal 0.30, with sub-triangular wide median area separated by shallow to very shallow furrows; length of tergum 1.30 times apical width, 0.80 times length of propodeum; apical width of tergum 1.50 times minimum basal width. Groove between second and third terga very shallow and weakly curved. Median length of second tergum 0.75 times as long as basal width, almost as long as third tergum. Median length of second and third terga combined 1.50 times basal width, 0.80 times maximum width. Ovipositor straight, sheath 1.80 times longer than hind basitarsus, 0.30 times as long as metasoma, 0.40 times as long as mesosoma.

Sculpture and pubescence. Vertex smooth; frons finely coriaceous; face almost entirely and rather distinctly densely granulate; temple finely to very finely coriaceous. Mesosoma mostly densely granulate, with almost smooth areas on mesopleuron; propodeum posteriorly and metapleuron with rugosity. Hind coxa almost entirely densely granulate. Hind femur more or less smooth, granulate-coriaceous dorsally. First and second terga densely granulate, first tergum coriaceous mediobasally. Third tergum coriaceous. Terga posterior to third tergum almost smooth. Vertex with sparse, short, and semi-erect white setae in posterior 0.30. Mesonotum entirely with sparse, rather long, semi-erect white setae. Third through sixth metasomal terga with two rows of rather dense, short, semierect setae. Hind tibia dorsally with dense, rather long, and semi-erect setae, length of those setae 0.75–1.00 times as long as maximum width of hind tibia.

Color. Body predominantly black. Scape and apical half of flagellum dark reddish brown to black, basal half of flagellum reddish brown. Palpi dark brown. Legs dark reddish brown, trochanters and basal 0.30 of tibiae reddish brown, first through fourth tarsomeres yellowish brown. Ovipositor sheath black.

Male. Body length 1.90 mm. Head (dorsal view) 1.45 times as wide as median length, 1.35 times as wide as mesosoma at level of tegulae. Transverse diameter of eye 1.10 times longer than temple (dorsal view). Ocelli in triangle with base 1.20 times sides. POL about 3.00 times Od, 0.50 times OOL. Antennal socket almost as wide as distance between sockets, 1.50 times as wide as distance between socket and eye. Eye almost without emargination opposite antennal socket, 1.35 times as high as broad. Malar space about 0.60 times as high as basal width of mandible. Face width 1.20 times height of face and clypeus combined. Antenna weakly thickened toward apex, with 17 flagellomeres, 0.90 times as long as body. Scape 1.40 times longer than wide. First flagellomere 3.00 times longer than apical width, as long as second flagellomere. Penultimate flagellomere 2.50 times longer than wide, 0.85 times as long as first flagellomere, 0.90 times as long as apical flagellomere. Pronotum with fine pronotal keel situated before middle of pronotal collar. Mesoscutum 0.80 times as long as wide. Subalar depression shallow. Mesopleuron with distinct oval oblique submedian depression. In dorsal view, mesonotum 3.00 times longer than pronotum. Wings rather narrow, pointed apically. Hind femur 3.50 times longer than maximum width. Hind tarsus as long as hind tibia. Second tarsomere of hind tarsus 0.55 times as long as basitarsus, 1.15 times longer than fifth tarsomere (without pretarsus). Median length of second tergum 0.80 times as long as basal width, 1.20 times longer than third tergum. Median length of second and third terga combined 1.40 times basal width of second tergum, 0.75 times maximum width. Frons widely almost smooth medially, coriaceous laterally. Mesopleuron finely undulately strigate. Third tergum finely granulate. Otherwise similar to female.

Diagnosis. This new species is placed in the subgenus Habrobracon Ashmead based on abundant granulate sculpture on the head, mesosoma, and basal part of the metasoma. It differs from all known species of Habrobracon as follows: wings very strongly reduced, mesosoma densely and almost entirely granulate, and mesopleuron with distinct submedian depression.

Distribution. Algeria.

Figures

FIGURES 87–96. Bracon barbieri sp. n., female. 87. Head, front view. 88. Head, dorsal view. 89. Head, lateral view. 90. Basal and apical segments of antenna, lateral view. 91. Hind tibia. 92. Mesosoma and wings, lateral view. 93. Mesosoma and wings, dorsal view. 94. Hind femur, lateral view. 95. Fore femur, lateral view. 96. Metasoma, dorsal view.

FIGURES 117–126. Habitus photos of brachypterous, micropterous, and apterous cyclostome braconids (117, 122–124 [dorsal view]; 118–121, 125–126 [lateral view]). 117. Dimeris mira Ruthe (female). 118. Eupambolus apterus Tobias (female, holotype). 119. Pambolus erogolus sp. n. (female, holotype). 120. Pambolus ovchinnikovi sp. n. (female, holotype). 121. Hormius minialatus Tobias (female, holotype). 122. Aleiodes hemipterus Marshall (female, lectotype). 123. Bracon barbieri sp. n. (female, holotype). 124. Chasmodon apterus (Nees) (female). 125. Lodbrokia mariae Sterzinski (female, holotype). 126. Panerema kamtshatica sp. n. (female, holotype).