Atopotrophos bubeng Reshchikov, 2024

Reshchikov, Alexey, 2024, Review of Oriental species of the genus Atopotrophos (Hymenoptera: Ichneumonidae), Zootaxa 5519 (1), pp. 119-132 : 122-124

Atopotrophos bubeng Reshchikov sp. nov.

( Figs 2 , 3 )

Tea Fauna Project 2023 (Holotype female Atopotrophos bubeng Reshchikov )

Material examined. Holotype, CHINA • 1 ♀; Yunnan Province, Xishuangbanna Dai Autonomous Prefecture, Mengla County, Bubeng , 21.591°N, 101.545°E, 1430m, Malaise trap 4, sample 1247, 18–28 Jul. 2012, A. Nakamura leg. ( KIZ).

Description. Holotype female.

MEASUREMENTS. Body length 10 mm, fore wing length 7.1 mm, antenna length 12.2 mm.

BODY. Weakly shining and sparsely clothed with white setae ( Fig. 2 ), except for pronotum and posterior propodeal areas which are glabrous and polished dorsally ( Figs. 3D, 3E ).

HEAD. Antenna slender, 1.7 × length of fore wing, with 35 flagellomeres, and a white subapical band ( Fig. 2 ). Scape 1.7 × as long as broad ( Fig. 3A ). First flagellomere 1.4 × longer than second and 1.5 × longer than third. Head evenly narrowed behind eyes, its width 1.2 × its length ( Fig. 3C ). Eye diameter 1.3 × temple length (measured dorsally). Inner margins of eyes converging ventrally ( Fig. 3A ). Lateral ocellus separated from eye margin by 1.4 × its widest diameter. Frons polished, impunctate. Antennal sockets raised above frons in profile ( Fig. 3B ). Anterior tentorial pits distinct and deep ( Fig. 3A ). Clypeus 0.7 × as high as wide, separated from face by a distinct impression, densely clothed with white setae ( Fig. 3A ), flat in profile ( Fig. 3B ). Its margin sharp, truncate, laterally produced as small lobes, medially with a dense apical fringe of short, parallel, yellowish, ventrally directed setae ( Fig. 3A ). Mandible strongly widened apically, crescent-shaped, its dorsal tooth hidden when the mandible is closed ( Fig. 3A ), its ventral tooth twisted anteriorly ( Fig. 3B, I ), and 1.5 × length of dorsal tooth ( Fig. 3A ). Malar space very short, 0.15 × basal mandible width ( Fig. 3A, I ). Occipital carina complete, joining hypostomal carina at a distance from posterior mandibular condyle of about 2.0 × basal width of mandible.

MESOSOMA. Pronotum elongate, shining, with transverse striation ( Fig. 3D ). Epomia distinct ( Fig. 3D ). Mesopleuron densely setose, impunctate, shagreened and striated in its lower part ( Fig. 3D ). Auxiliary carina which extends from anterior edge of mesopleuron joining epicnemial carina, dorsal portion of epicnemial carina curving anteriorly toward posterior edge of pronotum ( Fig. 3D ), and forked at apex. Postpectal carina complete, intersected by several short longitudinal carinae. Mesoscutum weakly shining, sparsely setose, impunctate, with lateral carina ( Fig. 3F ). Notauli strong, anteriorly broad, the remainder narrowly deep, curved and joining medioposteriorly, with some internal rugosity ( Fig. 3F ). Scutellum rather convex, forming an apical tooth, with lateral carina ( Figs 3D 1 , F). Postscutellum convex, forming an apical tooth ( Figs 3D 2 ). Juxtacoxal carina absent ( Fig. 3D ). Propodeum impunctate, with carinae complete ( Fig. 3E ). Lateral longitudinal and posterior transverse carina forming a small tooth ( Figs 3D, E ). Area basalis rather small, pentagonal, area superomedia 2.1 × its width ( Fig. 3E ). Spiracle of propodeum at an equal distance from pleural and lateral longitudinal carinae, joined to pleural carina by a transverse carina ( Fig. 3D ). Length of hind femur 6.7 × its width medially ( Fig. 2 ). Outer spur of hind tibia 0.75 × length of inner spur ( Fig. 2 ). Tarsal claw simple ( Fig. 3G ). Fore wing with vein 3rs-m absent, vein 2m-cu with two bullae, abscissa of CU longer than 2cu-a ( Fig. 3L ). Hind wing with distal abscissa of Rs, M, CU and AA distinct, cu-a shorter than CU ( Fig. 3L )

METASOMA. Smooth, impunctate. T1 cylindrical ( Fig. 3J, K ), its length 7 × its posterior width ( Fig. 3J ), convex ventrobasally ( Fig. 3K ). Glymma absent, spiracle at 0.5 ( Fig. 3K ). S1 fused with T1. Ovipositor weakly upcurved, 1.1 × as long as apical height of metasoma ( Fig. 3H ), or 0.6 of T1 ( Fig. 2 ). Its ventral valve with weak sclerotization at base extending to midpoint ( Fig. 3H ). Ovipositor sheath upcurved. Egg exposed, with elongate apical stalk ( Fig. 3H ).

COLORATION. Mostly black, except for: white antennal flagellomeres 11–15, and the following are marked with ivory: basal part of mandible, palpi, fore coxa apically, fore and middle trochanters, hind tarsus, T6–7 dorsally; the following are marked with yellowish-brown: pronotum dorsally, tegula, fore and middle legs, T1 anteriorly, T3; the following are marked with reddish-brown: basal flagellomeres, scape, hind coxa, hind femur, hind tibia except apically; the following are marked with brown: hind tibia apically, T1 posteriorly, T2, T4–5, T6–7 laterally, S5–6.

Male. Unknown.

Hosts. Unknown.

Distribution. Yunnan (SW China).

Diagnosis. Atopotrophos bubeng can be distinguished from all other Atopotrophos spp. by a combination of: 35 flagellomeres (fewer in all other species), a very short malar space (0.15 × basal mandible width), both scutellum and postscutellum forming an apical tooth. The most similar species, A. spiniger , differs from the new species in having a smaller body size (6.5 mm in A. spiniger and 10mm in A. bubeng ( Fig. 6 )), a lower number of flagellomeres, (33 in A. spiniger and 35 in A. bubeng ( Fig. 6 )), a longer malar space (0.23 × basal mandible width in A. spiniger and 0.15 in A. bubeng ( Fig. 7A, B )), postscutellum not forming an apical tooth (present in A. bubeng ) ( Fig. 7D )), defined carinated area basalis (weakly defined by wrinkles in A. spiniger ), a shorter area superomedia (1.5 × its width in A. spiniger and 2.1 × its width in A. bubeng ( Fig. 7E )), length of T1 shorter (6 × posterior width in A. spiniger and 7 × posterior width in A. bubeng ( Fig. 7G )), and a longer ovipositor (0.8 of T 1 in A. spiniger and 0.6 of T 1 in A. bubeng ( Fig. 6 )).

Etymology. The specific name refers to the type locality, Bubeng Village ( China).

Figures

FIGURE 1. A. Distribution of Atopotrophos bubeng sp. nov. A. chinensis, and A. spiniger. B. Malaise trap and sampling site at Bubeng (Mueang La, Xishuangbanna, Yunnan Province, China, photo by Huang Xiao). C. A. bubeng sp. nov. collection locality at Bubeng (Mueang La, Xishuangbanna, Yunnan Province, China, photo by Huang Xiao).

FIGURES 2. Holotype female Atopotrophos bubeng sp. nov. Habitus view.

FIGURE 3. Holotype female Atopotrophos bubeng sp. nov.A. Face. B. Head laterally. C. Head dorsally. D. Mesosoma laterally, 1. Scutellum, 2. Postscutellum. E. Propodeum. F. Mesosoma dorsally. G. Tarsal claw. H. Ovipositor and egg. I. Mandibles ventrally. J. T1 dorsally. K. T1 laterally. L. Wings.

FIGURE 6. Holotype female Atopotrophos spiniger. Habitus view.

FIGURE 7. Holotype female Atopotrophos spiniger. A. Face. B. Head laterally. C. Head dorsally. D. Mesosoma laterally. E. Propodeum. F. Mandibles ventrally. G. T1 dorsally. H. T1 laterally. I. Wings.