Rhogas (Rhogas) pallidistigmus
pallidistigma
Rogas pallidistigmus
Aleiodes (Neorhogas) pallidistigmus
Aleiodes (Chelonorhogas) pallidistigmus
Aleiodes pallidistigma
Rogas heterostigma
Aleiodes (Neorhogas) heterostigma
Aleiodes heterostigma
Revision of the western Palaearctic species of Aleiodes Wesmael (Hymenoptera, Braconidae, Rogadinae). Part 2: Revision of the A. apicalis group
van Achterberg, Cornelis
Shaw, Mark R.
Quicke, Donald L. J.
ZooKeys
2020
919
1
259
BMHL
2DDCBC74-9D5C-5AA5-9C5B-4B625E197404
(Telenga, 1941)
Telenga
1941
Insecta
Braconidae
Aleiodes
CoL
Animalia
Aleiodes pallidistigmus
Hymenoptera
0
1
Arthropoda
species
pallidistigmus
Rhogas (Rhogas) pallidistigmusTelenga, 1941: xii, 143, 177 (but also as palidistigma(p. 409) and pallidistigma(p. 420)) [examined]. Rogas pallidistigmus; Shenefelt 1975: 1241. Aleiodes (Neorhogas) pallidistigmus; Papp 1985b: 348. Aleiodes (Chelonorhogas) pallidistigmus; Chen and He 1997: 41; Fortier and Shaw 1999: 228; Belokobylskij 2000: 47; Ku et al. 2001: 237. Aleiodes pallidistigma; He et al., 2000: 667. Rogas heterostigmaStelfox, 1953: 149; Shenefelt 1975: 1233 [examined]. Syn. nov. Aleiodes (Neorhogas) heterostigma; Papp 1985a: 143, 146-147, 153, 1991a: 95. Aleiodes heterostigma; O'Connoret al. 1999: 91; Papp 2005: 177.
Type material. Paratypes of A. heterostigma, 4 ♀ + 1 ♂ (ZJUH, USNM), "[ Ireland], Rye Water, Co. KD, 5/9.vii.[19]42, AWS[telfox]"; 1 ♀ (RMNH), id., but 5.vii.1942; 1 ♀ (NMI), id., but 8.vii.1948; 1 ♂ (NMI), "[Ireland], Woodbrook, OC, 26.vi.[19]38". Holotype of A. pallidistigmus(♀, ZISP) from Far East Russia (Primorsky Krai, Ussuri area, Vinogradovka, 10.viii.1929, Kiritshenko).
Additional material. 1 ♀ (RMNH), " Belgium: Liege, Mt. Rigi, 650 m, 2.viii.1986, at light, C. v. Achterberg, RMNH"; 1 ♀ (MTMA), "Dania [= Denmark]: S-Jutland, Kragelund Mose, near Baekke, 11.viii.1973, [T.] Munk"; 1 ♀ (NMS), " Wales: Cereigion, RhosRhydd, SN572738, Molinia bog, 30.vii.1987, NCC Welsh Peatland Survey, P. Holmes, NMSZ 1996.023"; 1 ♂ (NMS) "Wales; Ceredigion, Comin Esgair Maen, SN652649, Equisetumbog, 23.vii.1987, NCC Welsh Peatland Survey, P. Holmes, NMSZ 1996.023"; 1 ♂ (FMNH), "Fennia [= Finland]: Helsinki, 27.vii.1978, O. Ranin"; 1 ♀ (NMS) Far East Russia, Anismovka v. Shkotova/S Primorje reg., 11-13.viii.2003, leg. Osipov"; 2 ♀ (MRC) "Far East Russia, S. Primorje reg., Lazo distr. Valentin 17-18.vii.2003 leg. Osipov": 1 ♀ (NMS) [Russian, Far East]; 2 ♀ (RMNH), " China: Jilin, Gomngzhuling, 43°5'N, 124°8'E, viii-ix.1983, Wang Chenghun".
Molecular data. None.
Biology. Unknown for West Palaearctic populations. Specimens have been collected in (June)July-August in open boggy areas, certainly at least sometimes over limestone. Presumably univoltine, but we have not seen reared material from West Palaearctic and the overwintering mode is unclear.
Diagnosis. Maximum width of hypoclypeal depression 0.4-0.5 xminimum width of face (Fig. 568); OOL of ♀ approx. 1.3 xas long as diameter of posterior ocellus and densely granulate (Fig. 569); penultimate segments rather slender and antenna 1.5 xas long as fore wing; ventral margin of clypeus thick, not protruding in lateral view; mesoscutal lobes finely granulate-punctulate and matt; precoxal area coarsely rugose; marginal cell of fore wing of ♀ ending rather close to wing apex (Fig. 560); vein 1-CU1 of fore wing 0.4-0.5 xas long as vein 2-CU1 (Fig. 560); hind tarsal claws rather robust and only brownish setose (Fig. 571); 3rd tergite and basal half of 4th tergite coriaceous and dull; labial palp yellowish brown or brown; basal half of hind tibia reddish or yellowish, slightly paler than basal half of hind femur, and its apex reddish or yellowish; 4th and 5th tergites black.
Description. Redescribed ♀ paratype of A. heterostigma(RMNH) from Ireland (Rye Water). Length of fore wing 4.9 mm, of body 6.3 mm. Head.Antennal segments of ♀ 58, length of antenna 1.1 xfore wing, its subapical segments rather robust (Fig. 567); frons largely superficially granulate; OOL 1.8 xdiameter of posterior ocellus, and superficially rugulose-granulate and shiny; vertex superficially rugulose-granulate, rather shiny; clypeus with some punctures; ventral margin of clypeus thick and not protruding forwards (Fig. 570); width of hypoclypeal depression 0.4 xminimum width of face (Fig. 568); length of eye 1.3 xtemple in dorsal view (Fig. 569); vertex behind stemmaticum superficially granulate-rugulose; clypeus near lower level of eyes; length of malar space 0.4 xlength of eye in lateral view. Mesosoma.Mesoscutal lobes densely and finely punctate-granulate, matt; precoxal area of mesopleuron coarsely rugose medially; remainder of mesopleuron coarsely punctate, with some rugae near speculum and interspaces superficially granulate; scutellum rather flat, punctulate-granulate and with weak lateral carinae; propodeum rather convex, shiny and coarsely rugose, medio-longitudinal carina distinct only on its anterior half. Wings.Fore wing: r 0.3 x3-SR (Fig. 560); 1-CU1 horizontal, 0.45 x2-CU1; r-m 0.7 x3-SR; 2nd submarginal cell short (Fig. 560); cu-a inclivous, straight; 1-M slightly curved posteriorly; surroundings of M+CU1, 1-M and 1-CU1 setose. Hind wing: marginal cell gradually widened with basal half rather narrow (Fig. 561), its apical width 2.6 xwidth at level of hamuli; 2-SC+R short longitudinal; m-cu weakly developed; M+CU:1-M = 35:26; 1r-m 0.5 x1-M. Legs.Tarsal claws rather robust and only brownish setose (Fig. 572); hind coxa coarsely punctate, dorsally with oblique striae; hind trochantellus robust; length of hind femur and basitarsus 4.1 and 4.6 xtheir width, respectively; length of inner hind spur 0.5 xhind basitarsus. Metasoma.First tergite rather flattened, as long as wide apically; 1st and 2nd tergites and base of 3rd tergite finely and irregularly longitudinally rugose, with medio-longitudinal carina weak; medio-basal area of 2nd tergite triangular and short (Fig. 564); 2nd suture rather deep and crenulate; apical half of 3rd tergite punctate-granulate, remainder of metasoma smooth except for some superficial micro-sculpture; 4th and apical half of 3rd tergite without sharp lateral crease; ovipositor sheath wide, with long setae and apically truncate (Fig. 559). Colour.Black; telotarsi largely and basal quarter of antenna dark brown; palpi, tegulae and pterostigma pale yellow; remainder of legs, 1st and 2nd tergites, basal half of 3rd tergite largely and pronotum orange brown; veins brown; wing membrane subhyaline. Variation.Pronotum anteriorly and basal half of antenna orange brown to dark brown, pterostigma is yellowish to largely (except base) rather dark brown; length of malar space 1.0-1.4 xbasal width of mandible; OOL 0.7-1.8 xdiameter of ocellus and metapleuron medially more or less punctate, rugulose-coriaceous or rugose. Antennal segments: ♀ 54(1), 58(1), 59(4), 60(2), 62(1), 64(1); ♂ 59(1), 60(1), 62(1). Apical tergites of ♂ type 1, fringe absent.
Distribution. *Belgium, British Isles (Ireland, Wales), China, *Denmark, *Finland, Russia (Far East).
New synonymy. We tried to separate the East Palaearctic A. pallidistigmusfrom the West Palaearctic A. heterostigma, but efforts were in vain. The differences such as the colour of the basal half of the antenna (dark brown in A. heterostigmaand usually yellowish or brown in A. pallidistigmus), the eyes and ocelli often smaller, OOL 1.1-1.8 xdiameter of ocellus (0.7-1.4 x), malar space 1.2-1.3 xbasal width of mandible (1.0-1.4 x) and metapleuron with a shiny and more or less punctate area (less shiny and rugulose-coriaceous or rugose) are too variable to justify separation of A. heterostigma. Therefore, we synonymise A. heterostigmawith A. pallidistigmus(syn. nov.). Figures 558, 559. Aleiodes pallidistigmus(Telenga), ♀, Denmark, Kragelund Mose 558habitus lateral 559ovipositor sheath lateral. Figures 560-572. Aleiodes pallidistigmus(Telenga), ♀, Denmark, Kragelund Mose 560fore wing 561hind wing 562mesosoma lateral 563mesosoma dorsal 5641st-3rd metasomal tergites dorsal 565fore femur lateral 566hind femur lateral 567apex of antenna 568head anterior 569head dorsal 570head lateral 571outer hind tarsal claw 572base of antenna.