Bracon (Glabrobracon) praecox Wesmael, 1838
publication ID |
https://doi.org/ 10.5852/ejt.2012.21 |
publication LSID |
lsid:zoobank.org:pub:993FCC8B-F8B1-42DD-B776-CA8435E08112 |
DOI |
https://doi.org/10.5281/zenodo.3858908 |
persistent identifier |
https://treatment.plazi.org/id/F8008D0E-FFD2-FFAB-06D4-49DEFA9CFA7C |
treatment provided by |
Valdenar |
scientific name |
Bracon (Glabrobracon) praecox Wesmael, 1838 |
status |
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Bracon (Glabrobracon) praecox Wesmael, 1838 View in CoL
Figs 42 View Fig A-J, 43A-H
Braco praecox Wesmael, 1838: 52 ♀ (type material: 1 ♀), type locality: “...la cour d’athené,” (in Brussels, Belgium), ♀ holotype (“Je ne possède qu’une femelle de cette espéce;” Wesmael l.c., present designation) in the Royal Belgian Institute of Natural Sciences, Brussels; examined.
Bracon semilunatus Dalla Torre, 1898: 288 (erroneous citation of B. semiluteus Walker View in CoL ).
Bracon semiluteus Walker, 1874: 307 View in CoL ♀, type locality: “ Japan ”, ♀ holotype (“Type”) in The Natural History Museum, London; examined.
Bracon praecox View in CoL – Szépligeti 1901: as valid species 269 (in key, in Hungarian); 1904 (1901): 190 (in key, in German) ♀ ♁.
Bracon (Glabrobracon) praecox View in CoL – Fahringer 1927: as valid species 269 (♀), 307 (♁) (in key), 1928: 484 (redescription) ♀ ♁, assigned to “Section Glabrobracon ”. — Telenga 1936: as valid species 152 (♀), 156 (♁) (in key), 222 (redescription) (in Russian) and 354-355 (♀), 358 (♁) (in key, in German). — Tobias 1961: 162 (as synonym of B. variator Nees View in CoL ). — Papp 1966: 392 (as synonym of B. variator View in CoL after Tobias l.c.). — Shenefelt 1978: 1586 (as B. variator View in CoL ab. praecox View in CoL after Papp l.c., literature up to 1974). — Tobias 1986: 134 (as synonym of B. variator View in CoL ).
Bracon semilunatus – Shenefelt 1978: 1580 (as synonym of B. piger View in CoL ).
Bracon semiluteus View in CoL – Morley 1913: 134 (“Quite certainly synonymous with B. piger, Wesm. View in CoL ...”). — Fahringer 1928: 525 (assigned to sp. inquir.). — Watanabe 1937: 29 (as synonym of B. piger View in CoL after Morley l.c.). — Shenefelt 1978: 1580 (as synonym of B. piger View in CoL after Morley l.c.).
Designation of the ♀ holotype of Bracon praecox View in CoL
(First label, printed) “ Coll. Wesmael ”; (second label, printed) “2067”; (third label) “ Braco ♀ / praecox mihi (handwriting) “dét. C. Wesmael ” (printed); (fourth label, printed red) “Type”; fifth label (printed) is with the (?)inventory number “3.317”; sixth label (printed) is with the locality name Bruxelles after Wesmael ; seventh label is the holotype card (sixth and seventh labels attached by me). Holotype is in fairly poor condition: (1) micropinned, pin thick; (2) head missing; (3) fore pair of legs missing.
Designation of the ♀ holotype of Bracon semiluteus
(First label, handwriting) “242”; (second label, printed) “ Japan / Coll. F. Walker / 1913-71.”; (third round label with red margin, printed) “ Type ”; (fourth label, with?Walker’s handwriting) “ Bracon / semiluteus”; (fifth label) “ Bracon piger Wesm. ♀ XII. 13” (handwriting) “Morley det.” (printed); sixth label is with the actual name B. praecox Wesmael given by me in 2007.
Material examined
48 ♀♀ + 38 ♁♁ from twenty-one countries: GREAT BRITAIN: 2 ♀♀ from two localities. FRANCE: 3 ♀♀ + 1 ♁ from four localities. GERMANY: 1 ♀ + 2 ♁♁ from three localities. DENMARK: 1 ♀. SWITZERLAND: 1 ♀. BOHEMIA: 1 ♀ + 1 ♁ from two localities. HUNGARY: 25 ♀♀ + 13 ♁♁ from 21 localties. SWEDEN: 1 ♀. ITALY: 2 ♀♀ from two localities. SPAIN: 1 ♀ + 1 ♁: from one locality. ALGERIA: 1 ♀ + 1 ♁ from two localities. CROATIA: 1 ♀ + 2 ♁♁ from two localities. ALBANIA: 1 ♁. BULGARIA: 7 ♀♀ + 3 ♁♁ from seven localities. GREECE: 3 ♁♁ from three localities. TURKEY: 3 ♁♁ from three localities. CYPRUS: 1 ♀. ISRAEL: 1 ♁. JORDAN: 4 ♁♁ from four localities. IRAQ: 1 ♁. MONGOLIA: 1 ♁.
Redescription of the ♀ holotype of Bracon praecox ( Fig. 42 View Fig A-G)
LENGTH. Body (without head) 2.8 mm long.
HEAD. Missing.
MESOSOMA. In lateral view 1.4 times as long as high, polished. Propleura in lateral view straight ( Fig. 42A View Fig ). Propodeum polished.
LEGS. Hind femur nearly 3.6 times as long as broad medially ( Fig. 42B View Fig ). Claw downcurved and pointed, its basal lobe less large ( Fig. 42C View Fig ).
WINGS. Forewing one-fourth longer than meso- and metasoma combined. Pterostigma ( Fig. 42D View Fig ) three times as long as wide and issuing r proximally from its middle, r 0.8 times as long as width of pterostigma; second submarginal cell fairly long, 3-SR 1.4 times as long as 2-SR, SR1 straight, nearly 1.8 times longer than 3-SR and reaching tip of wing ( Fig. 42D View Fig ). First discal cell rather high, 1-M less than twice (1.76 times) as long as m-cu; 1-SR-M indistinctly bent and 1.3 times as long as 1-M ( Fig. 42E View Fig ).
TERGITES. First tergite ( Fig. 42F View Fig ) 1.25 times as long as broad behind, beyond pair of spiracles parallelsided, margin of scutum subcrenulate, otherwise together with further tergites polished. Second tergite transverse, 3.6 times as broad behind as long laterally, third tergite slightly longer than second tergite; suture between them bisinuate, deep and smooth. Hypopygium pointed, ovipositor sheath as long as hind tibia + basitarsus combined ( Fig. 42G View Fig ).
COLOUR. Mesosoma and legs black. Metasoma yellow, first tergite black, median macula of tergites 4-5 brown. Wings brown fumous, pterostigma and veins brown.
Description of the head on the basis of a ♀ specimen identical with the holotype ( Fig. 42 View Fig H-J)
Antenna as long as head, mesosoma and half of metasoma combined and with 28 antennomeres (in the original description “31 articles”). First flagellomere nearly 1.8 times and penultimate flagellomere nearly 1.4 times as long as broad. Head in dorsal view ( Fig. 42H View Fig ) less transverse, 1.76 times as broad as long, eye one-third (or 1.4 times) longer than temple, temple strongly rounded, occiput weakly excavated. Eye in lateral view 1.5 times as high as wide and 1.4 times wider than temple ( Fig. 42I View Fig , see arrows). Horizontal diameter of oral opening 1.6 times longer than shortest distance between opening and eye ( Fig. 42J View Fig ). Head polished, black.
Variable features of the ♀ (48 ♀♀) ( Fig. 43 View Fig A-G)
Similar to the ♀ holotype. Body (2.5-) 3-4.5 mm long. Antenna with (23-)26-33 antennomeres. Head in dorsal view 1.7-1.8 times as broad as long ( Fig. 43A View Fig ). Hind femur 3.3 times (4 ♀♀) as long as broad medially ( Fig. 43B View Fig ). Pterostigma 2.6 times (11 ♀♀) as long as wide ( Fig. 43C View Fig ), r issuing from its middle (2 ♀♀, Fig. 43D View Fig ). Fore wing: 3-SR 1.2 times (3 ♀♀) and 1.6 times (7 ♀♀) as long as 2-SR ( Fig. 43 View Fig E-F). First tergite just longer than broad behind (6 ♀♀). Third tergite (3 ♀♀) a bit longer than second tergite ( Fig. 43G View Fig ). Hind femur distally to (almost) entirely yellow or reddish yellow (7 ♀♀). Metasoma entirely yellow (2 ♀♀).
Variable features of the ³ (38 ³³) ( Fig. 43H View Fig )
Similar to the type + ♀. Body 2.5-4(-4.5) mm long. Antenna with 23-37 antennomeres. First tergite 1.5 times as long as broad behind (16 ♀♀, Fig. 43H View Fig ).
Hosts
COL. Bruchidae :! Bruchidius lividimanus (Gyllenhal) , B. marginalis (Fabricius) , B. villosus (Fabricius) . Apionidae : Protapion apricans Herbst , P. trifolii Linnaeus. Curculionidae : Miarus campanulae Linnaeus ,! Pissodes validirostris (C. R. Sahlberg et J. Sahlberg) . — LEP. Cochylidae : Cochylis epilinana Duponchel. Coleophoridae : Coleophora gallipennella Hübner. Phycitidae :! Dioryctria abietella Denis et Schiffermüller. Tortricidae : Cnephasia longana Haworth ,! Cydia nigricana Fabricius. ! Retinia resinella Linnaeus. Geometridae :! Eupithecia venosata Fabricius (in Silene pod). — DIPT. Tephritidae : Tephritis leontodontis Degener.
Hyperperparasitoids
HYM. Eupelmidae : Eupelmus annulatus Nees. Eurytomidae : Eurytoma appendigaster Swederus. Ichneumonidae : Scambus elegans Woldstedt.
Distribution
Palaearctic Region, a frequent to common species in Europe.
Taxonomic position
Within the subgenus Glabrobracon the species Bracon praecox is nearest to B. piger considering their more or less subcubic head, their distinction is presented at the latter species.
Bracon praecox View in CoL is also near to the Nearctic species, B. bruchivorus Muesebeck (1963: 162) View in CoL , considering their subcubic head in dorsal view and parallel-sided first tergite; the two species are distinguished by a few features, see key:
1 (2) Temple in dorsal view strongly rounded ( Fig. 42H View Fig ). First tergite more or less longer than broad behind, second tergite antero-medially without a field and somewhat less transverse ( Figs 42F View Fig ; 43G View Fig ). Hind femur (3.3-)3.6 times as long as broad medially ( Figs 42B View Fig ; 43B View Fig ). Propleura in lateral view straight ( Fig. 42A View Fig ). Claw slightly less downcurved ( Fig. 42C View Fig ). Metasoma yellow with black pattern on first and last two tergites. ♀ ♁: 2.5-4.5 mm ...................... B. (Gl.) praecox Wesmael, 1838 View in CoL
2 (1) Temple in dorsal view weakly rounded ( Fig. 43I View Fig ). First tergite as long as broad behind, second tergite antero-medially with a small field and somewhat more transverse ( Fig. 43J View Fig ). Hind femur 2.8-2.9 times as long as broad medially ( Fig. 43K View Fig ). Propleura in lateral view slightly concave ( Fig. 43M View Fig ). Claw slightly more downcurved ( Fig. 43L View Fig ). Metasoma entirely testaceous. ♀ ♁: 3-3.8 mm ...... ................................................................................................... B. (Gl.) bruchivorus Muesebeck, 1963
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Genus |
Bracon (Glabrobracon) praecox Wesmael, 1838
Papp, Jenő & Xviii, Budapest 2012 |
Bracon semilunatus
Shenefelt R. D. 1978: 1580 |
Bracon praecox
Muesebeck C. F. W. 1963: ) |
Bracon semiluteus
Walker F. 1874: 307 |
Braco praecox
Wesmael C. 1838: 52 |
Bracon semilunatus
Bracon semilunatus Dalla Torre, 1898: 288 |
Bracon praecox
Szépligeti 1901 : as valid species 269 |
Bracon (Glabrobracon) praecox
Fahringer 1927: as valid species 269 |
Telenga 1936 |
Tobias 1961: 162 |
Papp 1966: 392 |
Shenefelt 1978: 1586 |
Bracon semiluteus
Morley 1913: 134 |
Fahringer 1928: 525 |
Watanabe 1937: 29 |
Shenefelt 1978: 1580 |