Chelonus (Parachelonus) Tobias 1995
Creators: name: Zhou, Jin-Jin
name: Achterberg, Cornelis Van
name: Tang, Pu
name: Chen, Xue-Xin
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Chelonus

description: Subgenus Parachelonus Tobias, 1995
Diagnosis. Body large-sized, at least 5.0 mm; head transverse; antennomeres of both sexes more than 20, rarely less; eye densely setose; frons and vertex striate-rugose; face flat, transverse to irregular punctate-rugose; clypeus often finely punctate, shiny; mesoscutum and scutellum evenly convex, punctate to alveolate-rugose; propodeum coarsely rugose; vein 1-SR+M of fore wing absent; hind coxa, femur and apex of tibia comparatively robust; metasomal carapace of male with deep apical opening, carapace apically usually rounded in dorsal view, rarely narrowed posteriorly.
Biology. Parasitoids of Sesiidae and Tortricidae (Yu et al. 2016).
Distribution. Palaearctic and Oriental regions (Yu et al. 2016).
Key to species of subgenus Parachelonus Tobias, 1995
1 Mesosoma reddish yellow (Figs 90B, 90C, 98B, 98C); [apical aperture of male carapace large, about 2.5 × wider than high (Figs 92F, 100F), its middle process of apical aperture moderately wide in lateral view (Figs 92D, 100D)]............... 2
- Mesosoma black (Figs 94B, 94C)........................................................................ 3
2 Temples distinctly widened behind eyes in dorsal view (Fig. 92H); body length 7.7–8.3 mm (Figs 89, 91); apex of metasomal carapace strongly incurved ventrally (Figs 90D, 92D)................. C. (P.) compressor (Chen & Ji, 2003) comb. nov.
- Temples narrowed behind eyes in dorsal view (Figs 98G, 100H); body length 4.0– 5.5 mm (Figs 97, 99); apex of metasomal carapace hardly incurved ventrally in female (Fig. 98D) and moderately so in male (Fig. 100D)...................................................................................... C. (P.) polycolor (Chen & Ji, 2003) comb. nov.
3 Females ............................................................................................. 4
- Males.............................................................................................. 9
4 Body length 7.9–8.5 mm; [vein 1-R1 of fore wing as long as pterostigma; lateral teeth of propodeum distinctly developed; antennomeres of female 41].................................... C. (P.) macrocorpus (Ji & Chen, 2003) comb. nov.
- Body length 4.8–5.3 mm (Fig. 93)........................................................................ 5
5 Temples rectilinearly narrowed behind eyes in dorsal view; face about 1.5 × wider than high.................................................................................................... C. (P.) gravenhorstii (Nees, 1816)
- Temple parallel-sided or slightly widened behind eyes; face more than 1.5 × wider than high (Fig. 94G)................ 6
6 Legs dark brown or black (Fig. 93)....................................................................... 7
- Legs pale or yellowish brown............................................................................ 8
7 Temples widened behind eyes in dorsal view; vein 1-R1 of fore wing as long as pterostigma; antennomeres of female 22................................................................................ C. (P.) pellucens (Nees, 1816)
- Temples parallel-sided behind eyes in dorsal view (Fig. 94G); vein 1-R1 of fore wing shorter than pterostigma (Fig. 94A); antennomeres of female 27 (Fig. 94H)................................................... C. (P.) hirsutus sp. nov.
8 Face 2.2 × wider than high; vein 1-R1 of fore wing shorter than pterostigma; antennomeres of female 20–22........................................................................................... C. (P.) starki (Telenga, 1953)
- Face 1.6 × wider than high; vein 1-R1 of fore wing as long as pterostigma; antennomeres of female18........................................................................................... C. (P.) xanthofossa (Tobias, 2000)
9 Mesopleuron entirely densely setose (Fig. 96B); [apical aperture in posterior view occupying about 0.5 × metasomal width (Fig. 96F); antennomeres of male 30 (Fig. 96I)]............................................... C. (P.) hirsutus sp. nov.
- Mesopleuron only setose below......................................................................... 10
10 Apical aperture in posterior view elongate, slit-shaped (width: height ratio> 3.5 ×)................................ 11
- Apical aperture in posterior view oval or round (width: height ratio <3.5 ×)...................................... 12
11 Length of 3 rd and penultimate antennomeres 3.7–3.8 × and 1.7–1.8 × its width, respectively; lateral teeth of propodeum strong and comparatively large.......................................................... C. (P.) starki (Telenga, 1953)
- Length of 3 rd and penultimate antennomeres 3.3 × and 1.3–1.5 × its width, respectively; lateral teeth of propodeum weak and small........................................................................ C. (P.) pellucens (Nees, 1816)
12 Legs yellowish brown; [antennomeres of male 23–24; metasomal carapace in dorsal view gradually widened]..................................................................................... C. (P.) xanthofossa (Tobias, 2000)
- Legs dark brown or black.............................................................................. 13
13 Temples rectilinearly narrowed behind eyes in dorsal view; carapace entirely black....... C. (P.) gravenhorstii (Nees, 1816)
- Temple parallel-sided or slightly widened behind eyes; base of metasomal carapace with a yellow band or a pair of yellowish lateral spots......................................................................................... 14
14 Vein 1-R1 of fore wing as long as pterostigma; base of metasomal carapace with a pair of yellowish lateral spots; temples slightly narrowed behind eyes in dorsal view.......................................... C. (P.) ovalis (Tobias, 1984)
- Vein 1-R1 of fore wing shorter than pterostigma; base of metasomal carapace with a yellow band; temples widened behind eyes in dorsal view............................................................ C. (P.) magnipunctus (Tobias, 1984)
description: Published as part of Zhou, Jin-Jin, Achterberg, Cornelis Van, Tang, Pu & Chen, Xue-Xin, 2024, A review of the subgenera Carinichelonus, Microchelonus, Parachelonus and Stylochelonus of the genus Chelonus Panzer (Braconidae: Cheloninae) with descriptions of twenty-one new species from China, pp. 1-127 in Zootaxa 5412 (1) on page 100, DOI: 10.11646/zootaxa.5412.1.1, http://zenodo.org/record/10675974