Bracon (Glabrobracon) fuscicoxis Wesmael 1838

Bracon (Glabrobracon) fuscicoxis Wesmael, 1838

Fig. 12 A-K

Braco fuscicoxis Wesmael, 1838: 32 ♀♁ (type material: one ♀ + two ♁♁), type locality: “environs de Liège” (Belgium), ♀ lectotype (and two ♁ paralectotypes, present designations) in the Royal Belgian Institute of Natural Sciences, Brussels; examined.

Bracon levicarinatus Niezabitowski, 1910: 59 (15) ♀ (type material: several ♀♀), type locality: Poland,?Rytro, syntype series in Zakład Ekologii i Ochrony Srodowiska WSP, Kielce, not examined; one ♀ paralectotype in Magyar Természettudományi Múzeum, Budapest (by exchange), examined, syn. nov.

Bracon fuscicoxis – Szépligeti 1901: 264 (in key, in Hungarian); 1904 (1901): 177 (in key, in German). Bracon (Orthobracon) fuscicoxis – Fahringer 1927: 265 (♀, in key) and 392 (redescription), assigned to “Section Orthobracon ”. — Telenga 1936: 172 (♀), 178 (♁) (in key), 277 (redescription) (in Russian) and 374 (♀), 380 (♁) (in key, in German). — Shenefelt 1978: 1633 (literature up to 1974).

Bracon (Bracon) fuscicoxis – Tobias 1986: 127 (in key, in Russian).

Bracon levicarinatus – Telenga 1936: as valid species 174 (♀, in key), 287 (redescription) (in Russian) and 376 (♀, in key in German). — Shenefelt 1978: 1639 (as valid species, literature up to 1974).

Designation of the ♀ lectotype of Bracon fuscicoxis

(First label, printed) “ Coll. Wesmael ”, (second label, printed) “2049”, (third label) “ Braco ♁ ♀ / fuscicoxis mihi” (handwritten) “dét. C. Wesmael ” (printed), (fourth label, printed red) “ Type ”, (fifth label with my handwriting) “ Belgique / Liège / leg. M. Robert ” (above on label) “teste J. Papp / 1987” (reverse on label), sixth label is the lectotype card. - Lectotype is in fairly good condition: (1) micropinned by mesosoma, (2) left antenna apically deficient, i.e. with 23 flagellomeres, (3) left hind wing missing.

Designation of the two ♁ paralectotypes of Bracon fuscicoxis with similar label data to that of the lectotype; first label of one ♁: “13. Juin B 719: 2” (handwritten). One ♁ paralectotype is in fairly good condition: (1) micropinned by mesosoma; (2) flagelli apically deficient; (3) tarsomeres 4-5 of right hind leg missing; (4) right hind wing basally and left hind wing apically damaged. One ♁ paralectotype is in fairly poor condition: (1) micropinned by mesosoma; (2) right flagellum apically deficient; (3) fore pair of legs and right middle leg (except coxae + trochanters) missing.

Material examined

19 ♀♀ + 14 ♁♁ from twelve countries: HUNGARY: 6 ♀♀ + 3 ♁♁ from seven localities. ROMANIA (Transylvania): 4 ♀♀ + 3 ♁♁ from five localities. AUSTRIA: 1 ♁. GERMANY: 2 ♀♀ from two localities. THE NETHERLANDS: 2 ♀♀ from two localities. DENMARK: 3 ♀♀ from three localities. ENGLAND: 2 ♀♀ + 2 ♁♁ from three localities. TURKEY, CROATIA, NORTH ITALY, SCOTLAND and IRELAND: 1 ♁ each from one locality.

Redescription of the ♀ lectotype of Bracon fuscicoxis (Fig. 12 A-H)

LENGTH. Body is 3.6 mm long.

ANTENNAE. About as long as body and (right antenna) with 29 antennomeres, left antenna apically deficient and with 25 antennomeres. First flagellomere three times and penultimate flagellomere 1.6 times as long as broad.

HEAD. In dorsal view (Fig. 12A) transverse, 1.85 times as broad as long, eye 1.75 times as long as temple, temple rather receded, occiput weakly excavated. Oral opening usual in size, its horizontal diameter as long as shortest distance between opening and compound eye (Fig. 12B). Head polished, face laterally just coriaceous.

MESOSOMA. In lateral view 1.2 times as long as high. Propodeum polished with a medio-longitudinal carina, laterally from carina subrugulose (Fig. 12C).

LEGS. Hind femur 3.8 times as long s broad somewhat distally (Fig. 12D). Claw of hind tarsus downcurved, basal lobe small (Fig. 12E).

WINGS. Forewing as long as body. Pterostigma (Fig. 12F) 3.3 times as long as wide and issuing r from its middle, r 0.75 times as long as width of pteriostigma. Second submarginal cell less long, 3-SR 1.25 times as long as 2-SR, SR1 1.8 times length of 3-SR, straight and reaching tip of wing and 1-R1 1.5 times as long as pterostigma. First discal cell subquadrate, 1-M 1.5 times as long as m-cu, 1-SR-M bent and 1.4 times as long as 1-M (Fig. 12G).

TERGITES. First tergite (Fig. 12H) a bit broader behind than long, evenly broadening posteriorly, pair of spiracles clearly before middle of tergite; scutum posteriorly rugose, its margin crenulated. Tergites 2-3 equal in length, second tergite 2.8 times as broad behind as long, medially rugulose, otherwise together with further tergites polished. Suture between tergites 2-3 straight and smooth. Ovipositor sheath long, as long as hind tibia + tarsomeres 1-2 combined.

COLOUR. Antenna, head and mesosoma black. Palpi pale yellow, tegula with faint brownish suffusion. Metasoma reddish yellow; first tergite entirely, median three-sided macula of second tergite and tergites 4-5 medially with posteriorly widening black maculae, further tergites almost entirely black. Legs yellow, coxae black apically yellow; tarsi just darkening fumous. Wings faintly fumous, pterostigma and veins light brown.

Redescription of the two ³ paralectotypes (Fig. 12 I-K)

Similar to the ♀ lectotype. Body 3.1-3.2 mm long. Antenna somewhat longer than body and with 31 antennomeres. First flagellomere twice and penultimate flagellomere 1.8 times as long as broad (1 ♁). Temple in dorsal view slightly less receded (Fig. 12I). Face nearly entirely and finely coriaceous. Propodeum medially rugo-rugulose (Fig. 12J). First tergite long, 1.2 times as long as broad behind, beyond pair of spiracles parallel-sided; second tergite almost entirely rugulose (Fig. 12K), third tergite antero-medially subrugulose-uneven. Ground colour of metasoma yellow (1 ♀).

Variable features of both sexes (Figs 12J; 16G)

Body 3-3.6 mm long. Antenna with 28-36 antennomeres; flagellomeres rarely long, penultimate flagellomere twice as long as broad. Propodeum medially rugo-rugulose (Fig. 12J). First discal cell long as in Fig. 16G. Pterostigma wide, 2.7-2.9 times as long as wide. Ovipositor sheath somewhat shorter than hind tibia. Tegula yellow. Metasoma nearly entirely yellow. Male: tergites 2-3(-4) yellow; hind coxa + trochanters + base of femur brownish to brown.

Hosts

COL. Chrysomelidae: Prasocuris phellandri Linnaeus (first record): England, Sussex, Hailsham, coll. 1 Aug. 1949 and em. 1 May 1950, R.L.E. Ford.

Distribution

Europe, Asiatic Russia (Irkutsk), Korea.

Taxonomic position

Within the subgenus Glabrobracon the species Bracon fuscicoxis is nearest to B. nigriventris Wesmael (Palaearctic Region, in Europe frequent to less frequent), the two species are distinguished by the following key features:

1 (2) Temple in dorsal view rather receded (Fig. 12A). First tergite evenly broadening posteriorly (Fig. 12H). Propodeum with a medio-longitudinal carina (Figs 12C, J). Hind femur 3.8 times as long as broad medially (Fig. 12D).Tergites 2-3 reddish yellow, second tergite antero-medially with black macula, legs yellow. ♀: 3-3.6 mm, ♁: 3.1-3.2 mm................................................ B. (Gl.) fuscicoxis Wesmael, 1838

2 (1) Temple in dorsal view rounded (Fig. 28A). First tergite beyond pair of spiracles subparallel-sided (Fig. 28H). Propodeum polished, only above lunule with short rugae (Fig. 28C). Hind femur 2.8-3 times as long as broad distally (Figs 28D, I). Tergites 1-2 vivid brownish yellow, legs brownish yellow. ♀ ♁: 3-3.4 mm........................................................................................ B. (Gl.) nigriventris Wesmael, 1838