Bracon (Bracon) pectoralis Wesmael, 1838

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: 70-74

publication ID

http://dx.doi.org/10.5852/ejt.2012.21

publication LSID

lsid:zoobank.org:pub:993FCC8B-F8B1-42DD-B776-CA8435E08112

DOI

http://doi.org/10.5281/zenodo.3858871

persistent identifier

http://treatment.plazi.org/id/F8008D0E-FFC0-FFB8-0539-4B29FC35FE00

treatment provided by

Valdenar

scientific name

Bracon (Bracon) pectoralis Wesmael, 1838
status

 

Bracon (Bracon) pectoralis Wesmael, 1838  

Figs 33 View Fig A-I, 34A, 35A-I

Braco pectoralis Wesmael, 1838: 12   ♀♁ (type material: 3 ♀♀ + 1 ♁), type locality: “environs de Liège” ( Belgium), ♀ lectotype (and two ♀ + one ♁ paralectotypes, present designation) in the Royal Belgian Institute of Natural Sciences, Brussels; examined.

Bracon pectoralis var. maculatus Papp, 1968: 192   (in key), 206 (description), localities: Hungary (Vácduka, Pécs), Romania: Transylvania (Rév = Vadul Crişului); examined, identical with var. fumigatus (Szépligeti)   .

Bracon fumigatus Szépligeti, 1901: 184   (in key), 273 (description) (in Hungarian); 1904 (1901): 161 (in key) and 170 (description) (in German) ♀ (type series: 1 ♀), type locality: “ Budapest ” ( Hungary), ♀ lectotype in Magyar Természettudományi Múzeum, Budapest; examined.

Bracon ochrosus Szépligeti, 1896: 290   (description in Hungarian) and 363 (description in German) ♁ (type series 1 ♁), type locality: “Budakesz”(-i) ( Hungary), ♁ holotype in Magyar Természettudományi Múzeum, Budapest; examined.

Bracon pectoralis   – Szépligeti 1901: 183 (in key, in Russian); 1904 (1901): 158 (in key, in German).

Bracon (Bracon) pectoralis   – Fahringer 1927: 236 (♀), 245 (♁) (in key), 332 (redescription), assigned to “Section Striobracon ” (= Bracon   s. str.). — Telenga 1936: 158 (♀), 166 (♁) (in key), 229 (redescription) (in Russian) and 360 (♀), 369 (♁) (in key in German). — Papp 1968: 192 (in key), 206 (taxonomy). — Shenefelt 1978: 1523 (literature up to 1974). — Tobias 1986: 124 (in key in Russian). Tobias & Belokobylskij 2000: 124 (in key in Russian).

Bracon   (in sp.) pectoralis   – Tobias 1961a: 157 (redescription).

Bracon fumigatus   – Fahringer 1927: as valid species 243 (in key) and 318 (redescription), assigned to “Sektion Striobracon ” (= Bracon   s. str.). — Telenga 1936: as valid species 166 (in key), 262 (redescription) (in Russian) and 368 (in key in German). — Papp 1968: as valid species 196 (in key) and 200 (type designations). — Shenefelt 1978: 1487 (as valid species after Papp l.c., literature up to 1968). — Tobias 1986: 125 (in key as synonym of B. intercessor Nees   ). — Papp 2004: 175 (as B. pectoralis var. fumigatus   , type designation and depository); 2008: 1790 (as synonym of B. pectoralis   ).

Bracon ochrosus   – Szépligeti 1901: 262 (in key); 1904 (1901): 163 (in key) ♁. — Fahringer 1927: as valid species 277 (in key) and 410 (redescription), assigned to “Section Orthobracon   ”. — Telenga 1936: as valid species 166 (in key), 264 (redescription) (in Russian) and 369 (in key in German). — Papp 1968: 206 (designation of the holotype, synonymization). — Shenefelt 1978: 1523 (as synonym of B. pectoralis   after Papp l.c., literature up to 1968). — Tobias 1986: not mentioned. — Papp 2004: 179 (type depository, as synonym of B. pectoralis   ), 2008: 1790 (as synonym of B. pectoralis   ).

Designation of the ♀ lectotype of B. pectoralis  

(First label, printed) “ Coll. Wesmael ”; (second, printed) “2023”; (third label) “ Braco   ♀ / pectoralis mihi” (handwritten) “dét. C. Wesmael ” (printed); (fourth label, printed red) “Type”; (fifth label attached by me) “ Belgique ” (printed) / “Liège / leg. M. Robert ” (my handwriting) (“teste J. Papp 1987” reverse on fifth label with my handwriting); sixth label is the lectotype card. Lectotype is in good condition: (1) micropinned, (2) both flagelli missing.

Designation of the two ♀ paralectotypes of B. pectoralis  

Labels identical to those of the ♀ lectotype except one ♀ with second label No. “2024” and both ♀♀ with paralectotype cards. Paralectotypes are in good condition: (1) micropinned, (2) 1 ♀ (no. 2023): right flagellum missing, left flagellum deficient, i.e. with 20 flagellomeres, (3) 1 ♀ (no. 2024, var. 1.) both flagelli deficient, right flagellum with 21 and left flagellum with 10 flagellomeres.

Designation of the ³ paralectotype of B. pectoralis  

Labels are identical to those of the paralectotypes; the sexual sign on third label is “ ♀ ”. Paralectotype is in good condition: (1) micropinned, (2) left flagellum missing, right flagellum with 13 flagellomeres.

Material examined

124 ♀♀ + 84 ♁♁ from twenty-four countries: ENGLAND: 1 ♀. THE NETHERLANDS: 1 ♀ + 1 ♁ from one locality. FRANCE: 2 ♀♀ from one locality. SWEDEN: 1 ♀. SLOVAKIA: 1 ♀ + 1 ♁ from two localities. HUNGARY: 63 ♀♀ + 46 ♁♁ from fifty-six localities. ROMANIA: 4 ♀♀ + 1 ♁ from five localities. MACEDONIA: 1 ♀. CROATIA: 7 ♀♀ from six localities. ALBANIA: 1 ♀. BULGARIA: 4 ♀♀ + 3 ♁♁ from three localities. GREECE: 7 ♀♀ + 6 ♁♁ from eight localities. ITALY: 7 ♀♀ + 10 ♁♁ from eight localities. CYPRUS: 4 ♀♀ + 4 ♁♁ from six localities. SPAIN: 3 ♀♀ + 2 ♁♁ from four localities. PORTUGAL: 1 ♀ + 2 ♁♁ from two localities. ALGERIA: 2 ♀♀ + 1 ♁ from three localities. TUNISIA: 2 ♀♀ from two localities. EGYPT: 2 ♀♀ from one locality. JORDAN: 2 ♀♀ from two localities. SYRIA: 1 ♁. TURKEY: 4 ♀♀ +3 ♁♁ from five localities. GEORGIA: 1 ♀. TURKMENISTAN: 3 ♀♀ + 3 ♁♁ from three localities.

Redescription of the ♀ lectotype of B. pectoralis   ( Figs 27C View Fig ; 33 View Fig A-H)

LENGTH. Body 3.6 mm long.

FLAGELLUM. Both flagellum missing.

HEAD. In dorsal view less transverse ( Fig. 33A View Fig ), 1.7 times as broad as long, eye slightly protruding and 1.3 times longer than temple, temple rounded, occiput weakly excavated. OOL twice as long as POL. Oral opening: its horizontal diameter 1.2 times as long as shortest distance between opening and eye ( Fig. 33B View Fig ). Head polished.

MESOSOMA. In lateral view stout, 1.2 times as long as high, polished. Notaulix evenly distinct, shallow, smooth. Propodeum polished, around lunule with a few short rugae (cf. Fig. 27C View Fig ).

LEGS. Hind femur 3.3 times as long as broad distally ( Fig. 33C View Fig ). Claw fairly downcurved, its basal lobe of usual size and pointed ( Fig. 33D View Fig ).

WINGS. Forewing somewhat longer than body. Pterostigma ( Fig. 33E View Fig ) 2.7 times as long as wide and issuing r proximally   from its middle; r just   shorter than width of pterostigma; second submarginal cell long, 3-SR 1.4 times as long as 2-SR, SR1 faintly bent, 1.7 times as long as 3-SR and reaching tip of wing. First discal cell usual in size, 1-M twice as long as m-cu, 1-SR-M straight and 1.2 times longer than 1-M ( Fig. 33F View Fig ).

TERGITES. First tergite ( Fig. 33G View Fig ) broad, one-fifth broader than long, beyond pair of spiracles broadening, hind half of scutum rugose, margin of scutum crenulated. Second tergite transverse, 3.5 times as broad behind as long laterally, suture between tergites 2-3 bisinuate, deep, crenulated; third tergite as long as second tergite. Tergites 3-6 before their hind margin with fine furrow ( Fig. 33G View Fig ). Second tergite rather longitudinally rugose, third and further tergites densely rugo-rugulose. Hypopygium pointed, ovipositor sheath long, as long as body ( Fig. 33H View Fig ).

COLOUR. Body testaceous, mesosoma with light brownish suffusion. Palpi and galea brown. Mesosternum black. Legs yellow, tarsi brownish. Wings subhyaline, pterostigma yellow, veins light brownish.

Redescription of the two ♀ paralectotypes of B. pectoralis   ( Fig. 33I View Fig )

(1 ♀ + 1 ♀ “var. 1.” det. Wesmael) Similar to the ♀ lectotype. Body 3-3.2. mm long. Flagelli deficient; first flagellomere 2.2 times and 21st flagellomere 1.4 times as long as broad, flagellum just thickening distally. Head in dorsal view transverse, 1.7-1.8 times as broad as long, temple somewhat more rounded ( Fig. 33I View Fig ). Hind femur 3.3-3.4 times as long as broad distally. Forewing: 3-SR 1.6 times as long as 2-SR.

First tergite beyond pair of spiracles somewhat less broadening. Ovipositor sheath somewhat shorter than body, i.e. as long as meta- and mesosoma combined.

Redescription of the ³ paralectotype of B. pectoralis   ( Fig. 34A View Fig )

Similar to the ♀ paralectotypes. Body 2.8 mm long. Right flagellum deficient, first flagellomere 2.5 times and 13th flagellomere 1.7 times as long as broad. First tergite as long as broad behind; second tergite less broad, 2.4 times as broad behind as long laterally and with longitudinal striae ( Fig. 34A View Fig ).

Variable features of the ♀♀ (124 ♀♀) ( Figs 33A View Fig ; 35 View Fig A-G)

Body (2.8-) 3-4.5 mm, usually 3.2-3.8 mm, long. Antenna somewhat shorter to somewhat longer than body and with (22-)26-31(-41) antennomeres. Head in dorsal view 1.65-1.8 times, usually 1.7-1.75 times ( Figs 33A View Fig ; 35A View Fig ), as broad as long. Hind femur 3.8 times ( Fig. 35B View Fig ), usually 3.3-3.4(-3.5) times as long as broad distally, or hind femur relatively thick ( Fig. 35C View Fig ). Forewing: second submarginal cell very long, 3-SR 1.7 times ( Fig. 35D View Fig ), usually 1.4-1.5 times, as long as 2-SR; or second submarginal cell relatively short: 3-SR 1.3 times as long as 2-SR ( Fig. 35E View Fig ). First tergite less broadening, just broader behind than long ( Fig. 35F View Fig ). Tergites 2-3 somewhat less roughly rugo-rugulose ( Fig. 35G View Fig ).

Variable features of the ³³ (84 ³³) ( Fig 33A View Fig ; 35A View Fig , H-I)

Body2.6-3.6(-4) mm long.Antenna as long as to longer than body and with (20-)23-30(-36)antennomeres. Head in dorsal view (1.6-)1.7-1.75 times as broad as long ( Fig. 33A View Fig ); exceptionally subcubic, 1.6 times as broad as long ( Fig. 35A View Fig ). Tergites 2-3 either roughly ( Fig. 35H View Fig ) or weakly ( Fig. 35I View Fig ) sculptured or rarely metasoma beyond (second or) third tergite almost smooth.

Hosts

COL. Apionidae   :! Oxystoma dimidiatum Desbrochers des Loges   (new host). Bruchidae   :! Bruchidius lividimanus Gyllenhal   , B. fasciatus Olivier   , Bruchophagus roddi Gussakovsky.   Curculionidae   :! Larinus flavescens Germar   ,! L. sturnus Schaller   ,! Rhinocyllus conicus Frölich.   — LEP. Alucitidae   : Alucita hexadactyla Linnaeus   , A. huebneri Wallengren.   Gelechidae:! Metzneria aestivella Zeller   , Sitotroga ceralella Olivier.   Pyralidae   : Etiella zinckenella Treitschke.   — DIPT. Tephritidae   : Acantophilus helianthi Rossi   , Chaetorellia hexachaeta Loew   ,! Terellia virens Loew   , Urophora quadrifasciata Meigen   ,! Xyphosia miliaria Schrank.   — HYM. Cynipidae   : Aphelonyx cerricola Giraud.   Eurytomidae   :! Bruchophagus roddi Gussakovsky.  

Distribution

Palaearctic Region, a species inhabitant its steppe / semidesert zone.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Braconidae

Genus

Bracon

Loc

Bracon (Bracon) pectoralis Wesmael, 1838

Papp, Jenő & Xviii, Budapest 2012
2012
Loc

Bracon pectoralis var. maculatus

Papp J. 1968: 192
1968
Loc

Bracon

Tobias V. I. 1961: 157
1961
Loc

Bracon (Bracon) pectoralis

Tobias V. I. & Belokobylskij S. A. 2000: 124
Tobias V. I. 1986: 124
Shenefelt R. D. 1978: 1523
Papp J. 1968: 192
Telenga N. A. 1936: 158
1936
Loc

Bracon fumigatus Szépligeti, 1901: 184

Szepligeti Gy. 1901: 184
1901
Loc

Bracon pectoralis

Szepligeti Gy. 1901: 183
1901
Loc

Braco pectoralis

Wesmael C. 1838: 12
1838
Loc

Bracon ochrosus Szépligeti, 1896: 290

Bracon ochrosus Szépligeti, 1896: 290
Loc

Bracon fumigatus

Fahringer 1927
Telenga 1936
Papp 1968
Shenefelt 1978: 1487
Tobias 1986: 125
Papp 2004: 175
Loc

Bracon ochrosus

Szépligeti 1901: 262
Telenga 1936
Papp 1968: 206
Shenefelt 1978: 1523
Tobias 1986
Papp 2004: 179