Bracon (Glabrobracon) marshalli SZÉPLIGETI, SZEPLIGETI, 1901

Papp, J., 2008, A revision of the Bracon (subgenera Bracon s. str., Cyanopterobracon, Glabrobracon, Lucobracon, Osculobracon subgen. n., Pigeria) species described by SZÉPLIGETI from the western Palaearctic Region (Hymenoptera: Braconidae, Braconinae), Linzer biologische Beiträge 40 (1), pp. 1741-1837: 1763-1766

publication ID

http://doi.org/10.5281/zenodo.5431644

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scientific name

Bracon (Glabrobracon) marshalli SZÉPLIGETI
status

 

Bracon (Glabrobracon) marshalli SZÉPLIGETI   ( Figs 184-204 View Figs 184-197 View Figs 198-208 )

Bracon obscurator NEES sensu MARSHALL 1885   (nec NEES 1834): 16 (in key) and 45 (no. 35, description) (existing authenticated specimens?), type locality: England (material originating from the FITCH’ s and BIGNELL’ s Collection, both naturalists reared the braconid specimens from the hosts Paulernis fulviguttella ZELLER and Homoesoma sinuella FABRICIUS, taken certainly in England). - SHENEFELT 1978: not mentioned.

Bracon marshalli SZÉPLIGETI 1901a: 270   (in key, in Hungarian) and 1914 (1901): 191 (in key, in German) (syntype series: three males, female latent), type locality: Budapest, Óbuda ( Hungary), male lectotype (and four male paralectotypes) in Magyar Természettudományi Múzeum, Budapest; examined. - TELENGA 1936: as valid species 151 (), 156 () (in key), 215 (redescription) (in Russian) and 353 (), 359 () (in key, in German). PAPP 1966: 387 (as synonym of B. obscurator NEES   ). SHENEFELT 1978: 1575 (as synonym of B. obscurator NEES   after PAPP l.c., literature up to 1969). TOBIAS 1986: 133 (as synonym of B. obscurator   ). PAPP 1991: 73 (sp. rev., in Hungarian), 2000: as valid species 232 (in key) and 249 (type designation (partly), redescription, nearest allies), 2004: 177 (type designation and depository).

R e m a r k s on the type series of Bracon marshalli   (after PAPP 2000: 249, partly modified): SZÉPLIGETI (1901: 270) described his species on the basis of female and male specimens (" "). The precise number of the syntype specimens and the locality name(s) were not indicated by him, i.e. the species has been described within the key and its detailed description was not presented in the traditional way. The species name "marshalli" was applied to the species " Br. obscurator Marsh.   (non Nees)" (Szépligeti l.c.) or as a new name (nomen novum) for B. obscurator Nees sensu Marshall (1885: 45)   . This taxonomic procedure explains the omission of the description. At present three male specimens (male lectotype and two male paralectotypes) of B. marshalli   are housed in the Hungarian Natural History Museum, these three males belong unambiguously to the original syntype series, reliable female specimen(s) was (were) not found (further two male paralectotypes are representing B. atrator NEES   , see also PAPP 2004: 177). The three males were collected by Szépligeti in the localities "Budapest Óbuda" (15 April 1896, two males) and "Ungvár" (since 1945 Uzhgorod, Ukraine: Podkarpaty, one male, its designation see subsequently); the locality labels were partly handwriting by Szépligeti, thus the three specimens in question are considered as authentic ones. Furthermore, the three males were placed under the name " Bracon marshalli SZÉPL.   " in the collection set up by SZÉPLIGETI himself and, consequently, I name-labelled them accordingly (in the years 1960ies Szépligeti’s original braconid collection was re-arranged by me). One male was designated as the lectotype and the two males as the paralectotypes, Hym. Typ. Nos 1340 (lectotype), 1341 and 11014 (paralectotypes) ( PAPP 2004: 177). The latter male paralectotype (no. 11014) is herewith designated: (first label) "Ungvár" (with Szépligeti’s handwriting) / "Szépligeti" (printed); (second label with my handwriting) "Kárpátalja / Ukraine "; (third label) " Bracon marshalli Szépl.   " (with my handwriting) / "det. Szépligeti" (printed); fourth label is the paralectotype card, fifth label is with the inventory number 11014.

The three male type specimens are in poor condition. The lectotype no. 1340: (1) micropinned; (2) left antenna deficient, i.e. with 12 antennomeres; (3) metasoma missing. The paralectotype no. 1341: (1) micropinned, (2) head, left fore wing, left fore leg and metasoma missing. The paralectotype no. 11014: (1) micropinned, pin pricked through left fore and right hind wings hence fore left wing medially somewhat damaged, (2) metasoma missing.

The female and male specimens, serving for the subsequent re-description, were selected scrupulously by me (and re-named by me as B. marshalli   ) from among the huge material accumulated in the Hungarian Natural History Museum and named mainly by routine identification as B. obscurator   , a species very similar to B. marshalli   .

M a t e r i a l e x a m i n e d (19 + 47): Hungary: 8 + 31 from 21 localities. Slovakia: 1. Romania (Transylvania): 2 from two localities. Slovenia: 1. Serbia ( Kosovo): 1. Croatia: 2 from two localities. Bulgaria: 2 from two localities. Greece: 1. Italy: 1 + 1 from two localities. Cyprus: 1. Portugal: 1. England: 1 + 2 from three localities. Norway: 1. Denmark: 1 + 1 from two localities. Sweden: 2 from two localities. Finland: 1. Germany: 1 + 1 from two localities. Switzerland: 1. Mongolia: 1.

D e s c r i p t i o n of the female (19) (after PAPP 2000, partly modified): Body (1.6-)1.8-2.2(-2.7) mm long. Antenna as long as body or somewhat shorter to somewhat longer, with (16-)18-23(-27) antennomeres. First flagellomere 1.7-1.8 times and penultimate flagellomere 1.4-1.5(-1.6) times as long as broad ( Fig. 184 View Figs 184-197 ). - Head in dorsal view ( Fig. 185, 186 View Figs 184-197 ) less transverse or subcubic, 1.65-1.8 times as broad as long, eye 1.4-1.5 times as long as temple, temple less rounded to rounded. Eye in lateral view 1.3-1.4 times as high as wide and 1.4-1.5 times wider than temple, temple beyond eye evenly wide ( Fig. 187 View Figs 184-197 , see arrows). Horizontal diameter of oral opening one-sixth longer than shortest distance between opening and compound eye ( Fig. 188 View Figs 184-197 ). Head polished.

Mesosoma in lateral view 1.35-1.4 times as long as high, polished. Notaulix faintly distinct. Propodeum polished, close around lunule either with rugulae (( Fig. 189 View Figs 184-197 ) or rugulose ( Fig. 190 View Figs 184-197 ). - Hind femur 3-3.5 times as long as broad just medially ( Figs 191, 192 View Figs 184-197 ). Claw downcurved, its basal lobe fairly large ( Fig. 193 View Figs 184-197 ).

Fore wing somewhat to one-fourth longer than body. Pterostigma ( Fig. 194 View Figs 184-197 ) 2.8-3 times as long as wide and issuing r either proximally from its middle or just from its middle, r shorter than width of pterostigma, 3-SR 1.3-1.4 times as long as 2-SR, SR1 straight, 1.6- 1.8 times length of 3-SR and approaching (i.e. not reaching) tip of wing; 1-R1 about 1.5 times as long as length of pterostigma. First discal cell less high, 1-M 1.7-2 times as long as m-cu, 1-SR-M 1.5 times as long as 1-M ( Fig. 195 View Figs 184-197 ).

First tergite quadrate ( Fig. 196 View Figs 184-197 ), as long as or somewhat longer than broad behind, beyond pair of spiracles parallel-sided or, less usually, just broadening posteriorly. Tergites 2-3 equal in length, suture between them straight to just bisinuate, shallow to moderately deep, smooth ( Fig. 196 View Figs 184-197 ). Second tergite antero-medially rarely rugulo-subrugulose ( Fig. 198 View Figs 198-208 ). Hypopygium pointed; ovipositor sheath variable in length: as long as

hind tibia to hind tibia + tarsomeres 1-2(-5) combined, hypygium and ovipositor sheath as in Fig. 199 View Figs 198-208 .

Body black. Antenna black to brownish black, scape usually black. Palpi brown, rarely yellow(ish). Tergites sometimes dark brown. Legs black or (dark) brown, at most fore femur apically, fore tibia variably, base of tibiae 2-3 brownish to brownish yellow. Wings subhyaline to weakly fumous, pterostigma and veins brownish.

D e s c r i p t i o n of the male lectotype of B. marshalli   (its metasoma missing): Body (head + mesosoma) 1.2 mm long. Antenna somewhat longer than head + mesosoma combined and with 14 antennomeres. First flagellomere 2.1 times, second flagellomere twice and penultimate flagellomere 1.5 times as long as broad. - Head in dorsal view ( Fig. 200 View Figs 198-208 ) less transverse or subcubic, 1.6 times as broad as long, eye somewhat longer than temple, temple rounded, occiput excavated. Eye in lateral view just 1.6 times as high as wide and slightly wider than temple ( Fig. 201 View Figs 198-208 , see arrows). Horizontal diameter of oral opening one-third longer than shortest distance between opening and compound eye ( Fig. 202 View Figs 198-208 ). Head polished.

Mesosoma in lateral view 1.66 times as long as high, polished. Notaulix distinct. Propodeum polished, close around lunule with rugulae or rugulose ( Figs l89, l90 View Figs 88-98 ). - Hind femur 3.1 times as long as broad medially. Claw less downcurved than that of female, its basal lobe a bit greater than that of female ( Fig. 197 View Figs 184-197 ).

Fore wing clearly one-third longer than head + mesosoma combined. Pterostigma ( Fig. 203 View Figs 198-208 ) three times as long as wide and issuing r from its middle, r as long as width of pterostigma, second submarginal cell fairly long, 3-SR 1.2 times as long as 2-SR; SR1 staright, almost twice longer than 3-SR and approaching tip of wing; 1-R1 1.8 times length of pterostigma. First discal cell fairly high, 1-M 1.5 times as long as m-cu, 1-SR- M 1.25 times as long as 1-M ( Fig. 204 View Figs 198-208 ).

Antenna, head and mesosoma dark brown, legs brown. Palpi and tegula brown. Wings subhyaline, pterostigma and veins light brown.

Deviating features of the two male paralectotypes: Similar to the male lectotype. Antenna with 23 antennomeres. Flagellomeres 1-2 2.3 times and penultimate flagellomere 2.2 times as long as broad. Head in dorsal view 1.75 times as broad as long, eye 1.5 times as long as temple. Mesosoma in lateral view 1.35 times as long as high. Hind femur 3.3-3.5 times as long as broad medially ( Figs 191, 192 View Figs 184-197 ).

Variable features of the males (47): Similar to the male types. Body (1.6-)1.8-2.1(- 2.3) mm long. Antenna more or less longer than body and with (16-)21-24(-30) antennomeres. Head in dorsal view exceptionally 1.8-1.9 times as broad as long (3). Hind femur 3.1-3.5(-3.7) times as long as broad medially. First discal cell high ( Fig. 204 View Figs 198-208 ) to less high ( Fig. 195 View Figs 184-197 ). First tergite 1.1-1.3 times as long as broad behind and beyond pair of spiracles either parallel-sided (cf. Fig. 196 View Figs 184-197 ) or weakly broadening. Second tergite rarely antero-medially rugo-rugulose or subrugulose (cf. Fig. 198 View Figs 198-208 ).

H o s t s Trachys sp. (Col. Buprestidae   ). Cydia nigricana FABRICIUS   (Lep. Tortricidae   ). Myopites inulae RÖSLER   (Dipt. Trypetidae   ).

D i s t r i b u t i o n:Europe.

R e m a r k s: Within the subgenus Glabrobracon   the species B. marshalli   stands nearest to B. obscurator NEES   , the specific distinction between them is restricted to a few features keyed:

1 (2) First tergite as long as to somewhat longer than broad behind () and 1.1-1.3 times as long as broad behind () ( Fig. 196 View Figs 184-197 , cf. Fig. 205 View Figs 198-208 ). Head in dorsal view subcubic, (1.5-)1.6-1.7 times as broad as long ( Figs 185, 186 View Figs 184-197 , 200 View Figs 198-208 ). Claw somewhat less downcurved and slightly less pointed, its basal lobe less large ( Figs 193, 197 View Figs 184-197 ). Legs black to brown with a few brown to yellowish brown pattern.: (1.6-)1.8-2.2(-2.7) mm,: (1.6-)1.8-2.1(-2.3) mm................................ B. (Gl.) marshalli SZÉPLIGETI 1901  

2 (1) First tergite 1.4-1.8 times () and 1.6-1.9(-2.2) times () as long as broad behind ( Figs 205, 206 View Figs 198-208 ). Head in dorsal view transverse, (1.7-)1.8-2(-2.2) times as broad as long ( Fig. 207 View Figs 198-208 ). Claw downcurved and sightly more pointed, its basal lobe large ( Fig. 208 View Figs 198-208 ). Legs black to blackish with more or less yellowish to yellow pattern on femora + tibiae.: (2-)2.5-3.5(-5) mm,: (1.8-)2.2-3.3(-4.5) mm ................................ ........................................................................................ B. (Gl.) obscurator NEES 1811  

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Braconidae

Genus

Bracon

Loc

Bracon (Glabrobracon) marshalli SZÉPLIGETI

Papp, J. 2008
2008
Loc

Bracon marshalli SZÉPLIGETI 1901a: 270

PAPP J 1991: 73
TOBIAS V 1986: 133
SHENEFELT R 1978: 1575
PAPP J 1966: 387
SZEPLIGETI Gy 1901: 270
1901