Bracon longicollis var. depressiusculus

Papp, Jenő & Xviii, Budapest, 2012, A revision of the Bracon Fabricius species in Wesmael’s collection deposited in Brussels (Hymenoptera: Braconidae: Braconinae), European Journal of Taxonomy 21, pp. 1-154 : 48-50

publication ID	https://doi.org/ 10.5852/ejt.2012.21
DOI	https://doi.org/10.5281/zenodo.3858918
persistent identifier	https://treatment.plazi.org/id/F8008D0E-FFAA-FFC0-0793-4C02FA9CFD1D
treatment provided by	Valdenar
scientific name	Bracon longicollis var. depressiusculus
status

Treatment

B. longicollis var. depressiusculus View in CoL ( Fig. 20K View Fig )

Body strong. First tergite large, slightly more broadening posteriorly ( Fig. 20K View Fig ). Sculpture of body rough ( Fig. 20K View Fig ). Antenna with 29-35 antennomeres. Corporal colour fairly albanic.

Hosts

DIPT. Chloropidae :! Chlorops pumilionis Bjerkander , Ch. taenipus Meigen. — LEP. Momphidae :! Mompha bradleyi Riedl. Glyphipterigidae :? Glyphipterix simpliciella Stephens. — HYM. Cephidae :! Cephus pygmaeus Linnaeus. Tenthredinidae :! Heptamelus ochroleucus (Stephens) .

Distribution

Palaearctic Region, in Europe frequent to common.

Taxonomic position

The species Bracon (Bracon) longicollis is nearest to B. (Glabrobracon) exhilarator Nees , their distinction see at the latter species. - B. (B.) longicollis is near to B. (B.) nigratus Wesmael (Palaearctic Region, in Europe fairly frequent to sporadic), the two species are distinguished by the following features:

1 (2) Propodeum with a medio-longitudinal carina and along it rugulose-subrugulose (to rugose) of variable extent ( Figs 18D View Fig ; 19A View Fig ; 20 View Fig C-D). Forewing: pterostigma (2.8-)3-3.2 times as long as wide ( Figs 18G View Fig ; 20E View Fig ). Second tergite transverse, 3-3.2 times as broad behind as long; tergites 1-2 usually with rugosity ( Figs 18I View Fig ; 20F View Fig ). Ovipositor sheath usually as long as hind tibia. Tegula yellow. ♀ ♁: (2.5-) 3-5 mm ............................................................................................. B. (B.) longicollis Wesmael, 1838

2 (1) Propodeum without a medio-longitudinal carina, at most above lunule with a few rugulae ( Fig. 24C View Fig ). Forewing: pterostigma wide, 2.2-2.5(-2.7) times as long as wide ( Figs 24F View Fig ; 25B View Fig ). Second tergite less transverse, 2.6-2.7 times as broad behind as long; tergites 1-2 usually with rougher rugosity ( Fig. 24H View Fig ). Ovipositor sheath usually as long as hind basitarsus. Tegula (dark) brown to blackish. ♀: (2.8-) 3-4 mm, ♁: (2-) 2.5 mm .................................................... B. (B.) nigratus Wesmael, 1838

The species B. (B.) longicollis is also near to B. (B.) speerschneideri Schmiedeknecht considering their sculpture quality of the tergites and the short ovipositor sheath; the distinction of the two species is presented as follows:

1 (2) Propodeum with a medio-longitudinal carina, along it rugulose-subrugulose ( Figs 18D View Fig ; 19A View Fig , 20 View Fig C-D). Hind femur thick, 2.3-3.1 times (♀) and 3.3 times (♁) as long as broad ( Figs 18E View Fig ; 19B View Fig ). Temple receded ( Fig. 18A View Fig ). Tergites 2-3 of ♀ equal in length ( Fig. 18I View Fig ). Ground colour of body blackish to black, tergites 2-3 with yellow to testeceous pattern (albanic and melanic forms sporadic). Body rather strong, ♀: (2.5-) 3-5 mm .............................................. B. (B.) longicollis Wesmael, 1838

2 (1) Propodeum medio-basally with fine sculpture ( Fig. 21A View Fig ). Hind femur thin, four times as long as broad ( Fig. 21B View Fig ). Temple rounded ( Fig. 21C View Fig ). Female: second tergite somewhat longer than third tergite ( Fig. 21D View Fig ). Ground colour of body brown to dark brown with faint rusty pattern. Body rather gracile, ♀: 3-3.2 mm .................................................. B. (B.) speerschneideri Schmiedeknecht, 1897

The species Bracon (Glabrobracon) reseri Papp seems also near to B. (B.) longicollis disregarding the subgeneric difference between them: B. reseri : at most tergites 2-3 rugo-rugulose, rugose. The deviating features of B. reseri from three species, B. larvicida Wesmael , B. romani Fahringer and

B. terebella Wesmael View in CoL , were presented previously ( Papp 1989: 273-276), the fourth species, B. longicollis View in CoL , is separated subsequently:

1 (2) Temple in dorsal view rounded ( Fig. 21E View Fig ). Flagellomeres 6-8 to 22-24 of ♀♀ subcubic, at most somewhat longer than broad; those of ♁♁ 1.3-1.4 times longer. First discal cell slightly less high, 1-M 1.5 times as long as m-cu ( Fig. 21F View Fig ). Female: legs blackish to black with less yellowish brown to brown pattern; ♁: legs somewhat more light coloured. Tegula black. ♀ ♁: 3.2-3.6 mm .................... ................. ..................................................................................................... B. (Gl.) reseri Papp, 1989 View in CoL

2 (1) Temple in dorsal view receded ( Fig. 18A View Fig ). Flagellomeres of ♀♀ (1.3-)1.6-2 times as long as broad; those of ♁ 1.8-2.2 times longer. First discal cell high, 1-M 1.7 imes as long as m-cu ( Fig. 18H View Fig ). Female: legs yelow with more or less brownish to blackish pattern; ♁: legs yellow to brownish with less dark pattern. Tegula yellow to brown. ♀: 2.4-5 mm, ♁: 2.2-4 mm ......... B. longicollis Wesmael, 1838