Tarpheion van Achterberg, 1976

Lu, Qian-Yu, Chai, Hong-Fei, Achterberg, Cornelis Van, Tang, Pu & Chen, Xue-Xin, 2024, Review of the subgenus Tarpheion of the genus Blacus Nees (Hymenoptera, Braconidae, Brachistinae) from China, with description of nine new species and eight new records, Zootaxa 5406 (2), pp. 297-335 : 298-299

publication ID

https://doi.org/ 10.11646/zootaxa.5406.2.5

publication LSID

lsid:zoobank.org:pub:410EC006-BCE4-466C-AD0B-C842F59FD65D

DOI

https://doi.org/10.5281/zenodo.10632290

persistent identifier

https://treatment.plazi.org/id/2462002B-B04B-7C57-A289-C635668DFA3E

treatment provided by

Plazi

scientific name

Tarpheion van Achterberg
status

 

Key to Chinese species of subgenus Tarpheion van Achterberg

1 Occipital carina completely absent, precoxal sulcus reduced, usually only medially (partly) shallowly impressed, striae less (except B. (T.) sculptilis ); vein 1-CU1: 2-CU1 of fore wing ≈ 1:10; notauli usually narrow (except B. (T.) frontalis )....... 2

- Occipital carina present at least up to level of ventral half of eye, precoxal sulcus complete and impressed, striae more; vein 1-CU1: 2-CU1 of fore wing ≤ 1:5 (except B. (T.) apicalis View in CoL = 1:7); notauli usually wide (except B. (T.) reticulatus , bicolor View in CoL and artomandibularis View in CoL ).................................................................................... 6

2 Length of first metasomal tergite of female 2.75–2.95 × its apical width ( Figs 18G View FIGURE 18 , 28E View FIGURE 28 )............................. 3

- Length of first tergite of female 2.3–2.5 × its apical width ( Figs 2F View FIGURE 2 , 4E View FIGURE 4 , 22G View FIGURE 22 )...................................... 4

3 Antenna of ♀ with 20 antennomeres; posterior half of notauli narrow and finely crenulate; mesosoma dark brown; posterior half of pronotal side and precoxal area largely sculptured; length of malar space equal to basal width of mandible; length of eye in dorsal view 1.6 × length of temple ( Fig. 28A View FIGURE 28 )............................................ B. (T.) sculptilis sp. nov.

- Antenna of ♀ with 19 antennomeres; posterior half of notauli comparatively wide and coarsely crenulate; mesosoma yellowish-brown; posterior half of pronotal side and precoxal area largely smooth; length of malar space 0.7 × basal width of mandible; length of ♀ in dorsal view 2.2 × length of temple ( Fig. 18A View FIGURE 18 )................................. B. (T.) frontalis sp. nov.

4 Notauli moderately wide and distinctly crenulate; head and mesosoma completely yellow or yellowish-brown; length of ovipositor sheath 0.23 × length of fore wing; body yellow................................ B. (T.) hainanensis sp. nov.

- Notauli narrow and at most finely crenulate; head and mesosoma completely dark reddish-brown or brownish-black; length of ovipositor sheath 0.23–0.28 × length of fore wing; body brown or dark brown..................................... 5

5 First tergite parallel-sided and its basal third partly sculptured; length of ovipositor sheath 0.27–0.28 × length of fore wing; antenna of ♀ with 19 antennomeres; vein 3-CU1 of fore wing slightly curved; hind femur parallel-sided; pronotal side with less striae ventrally.......................................................... B. (T.) achterbergi Haeselbarth,1976 View in CoL

- First tergite slightly widened posteriorly and its basal third largely smooth (except for dorsal carinae); length of ovipositor sheath about 0.23 × length of fore wing; antenna of ♀ with 20 antennomeres; vein 3-CU1 of fore wing distinctly curved; hind femur widened apically; pronotal side with more striae ventrally............................. B. (T.) adelphius sp. nov.

6 Lamelliform carina of middle lobe of mesoscutum subvertical and very strong ( Fig. 16E View FIGURE 16 ); occipital carina widely interrupted medio-dorsally; vein r of fore wing strongly oblique ( Fig. 16F View FIGURE 16 ); length of ovipositor sheath 0.3–0.4 × length of fore wing ( Fig. 15 View FIGURE 15 ).................................................................... B. (T.) bicolor van Achterberg, 1988 View in CoL

- Antero-lateral carinae or rugae of middle lobe of mesoscutum absent to moderately oblique and comparatively weak ( Figs 6D View FIGURE 6 , 8D View FIGURE 8 , 10F View FIGURE 10 , 14F View FIGURE 14 , 20E View FIGURE 20 , 24D View FIGURE 24 , 30G View FIGURE 30 , 34D View FIGURE 34 ), resulting in a reticulate ( Fig. 26E View FIGURE 26 ), rugose or smooth area; occipital carina complete medio-dorsally, but interrupted in B. (T.) angichorus View in CoL , wuyishanensis and soror View in CoL ; vein r of fore wing vertical to moderately oblique ( Figs 6F View FIGURE 6 , 8H View FIGURE 8 , 10G View FIGURE 10 , 12F View FIGURE 12 , 14G View FIGURE 14 , 20I View FIGURE 20 , 24H View FIGURE 24 , 26H View FIGURE 26 , 30F View FIGURE 30 , 32F View FIGURE 32 , 34G View FIGURE 34 ); length of ovipositor sheath 0.13–0.39 × length of fore wing ( Figs 5 View FIGURE 5 , 7 View FIGURE 7 , 9 View FIGURE 9 , 11 View FIGURE 11 , 13 View FIGURE 13 , 19 View FIGURE 19 , 23 View FIGURE 23 , 25 View FIGURE 25 , 29 View FIGURE 29 , 31 View FIGURE 31 , 33 View FIGURE 33 ).......................................................................... 7

7 Vein 3-SR+SR1 of fore wing continuous with vein 2-SR (Fig. 376 in van Achterberg, 1988); vein 2-1A of fore wing intermediate; vein 3-CU1 of fore wing subhorizontal (Fig. 376 in van Achterberg, 1988); second metasomal tergite largely costate; length of third antennomere of ♀ 5.8 × its width; length of ovipositor sheath 0.13 × length of fore wing..... B. (T.) votrus Papp, 1985 View in CoL

- Vein 3-SR+SR1 of fore wing normal, discontinuous with vein 2-SR ( Figs 6F View FIGURE 6 , 8H View FIGURE 8 , 10G View FIGURE 10 , 12H View FIGURE 12 , 14G View FIGURE 14 , 20I View FIGURE 20 , 24H View FIGURE 24 , 26H View FIGURE 26 , 30F View FIGURE 30 , 32F View FIGURE 32 , 34G View FIGURE 34 ); vein 2-1A of fore wing distinct and at least its basal half sclerotised ( Figs 6F View FIGURE 6 , 8H View FIGURE 8 , 10G View FIGURE 10 , 12H View FIGURE 12 , 14G View FIGURE 14 , 20I View FIGURE 20 , 24H View FIGURE 24 , 26H View FIGURE 26 , 30F View FIGURE 30 , 32F View FIGURE 32 , 34G View FIGURE 34 ); vein 3-CU1 of fore wing usually distinctly curved ( Figs 6F View FIGURE 6 , 8H View FIGURE 8 , 10G View FIGURE 10 , 12H View FIGURE 12 , 14G View FIGURE 14 , 20I View FIGURE 20 , 24H View FIGURE 24 , 26H View FIGURE 26 , 30F View FIGURE 30 , 34G View FIGURE 34 ), except B. (T.) tanae ( Fig. 32F View FIGURE 32 ); second tergite frequently distinctly sculptured ( Fig. 32E View FIGURE 32 ); length of third antennomeres of ♀ 5.8–7.2 × its width; length of ovipositor sheath 0.14–0.39 × length of fore wing............................................ 8

8 Length of ovipositor sheath 0.13–0.18 × fore wing and 0.6–1.0 × as long as first metasomal tergite; first discal cell of fore wing widely truncate anteriorly (but narrowly in B. (T.) apicalis View in CoL ); first tergite 2.6–3.1 × longer than its apical width (but 2.1–2.3 × in B. (T.) apicalis View in CoL ) and slightly widened posteriorly (but nearly parallel-sided in B. (T.) reticulatus )....................... 9

- Length of ovipositor sheath 0.22–0.37 × fore wing and 1.1–1.8 × longer than first tergite; if intermediate then first discal cell of fore wing narrowly truncate or acute anteriorly; first tergite 2.0–2.6 × longer than its apical width and widened posteriorly.. 12

9 Fore tarsal claw of ♀ with short blackish bristles; first metasomal tergite 2.6–3.1 × longer than its apical width and nearly parallel-sided posteriorly; antenna of ♀ with 6 apical antennomeres brown; length of fore wing 1.9–2.4 mm ............ 10

- Fore tarsal claw of ♀ simple, yellowish setose; first tergite 2.1–2.5 × longer than its apical width and widened posteriorly; antenna of ♀ with 6 apical antennomeres yellowish white or dark brown; length of fore wing 1.5–2.2 mm .............. 11

10 Antero-lateral area of middle mesoscutal lobe reticulate-rugose; head and mesosoma similarly dark brown; notauli narrow and spaced crenulate; apical half of antenna of ♀ brown, including apical antennomere............. B. (T.) reticulatus sp. nov.

- Antero-lateral area of middle mesoscutal lobe largely smooth, except some short fine carinae; head paler than mesosoma; notauli moderately wide and densely crenulate; apical half of antenna of ♀ pale brown or yellow, except for dark brown apical antennomere......................................................................... B. (T.) tanae sp. nov.

11 Antenna of ♀ tricoloured (6 apical antennomeres yellowish white, 10 middle antennomeres more or less brown and 4 basal antennomeres yellowish); length of fore wing 1.5–1.7 mm ....................... B. (T.) apicalis van Achterberg, 1976 View in CoL

- Antenna of ♀ bicoloured (mainly dark brown, but basal antennomeres yellow); length of fore wing 1.7–2.3 mm .............................................................................. B. (T.) albiventris van Achterberg, 1988 View in CoL

12 First discal cell of fore wing wide anteriorly, distinctly truncate ( Fig. 30F View FIGURE 30 ) and middle lobe of mesoscutum antero-laterally with some carinae or rugae; occipital carina absent medio-dorsally; clypeus and face medially similarly coloured; vein r of fore wing oblique................................................................. B. (T.) soror van Achterberg, 1988 View in CoL

- First discal cell of fore wing comparatively narrow anteriorly ( Figs 8H View FIGURE 8 , 10G View FIGURE 10 , 14G View FIGURE 14 , 20I View FIGURE 20 , 24H View FIGURE 24 , 34G View FIGURE 34 ); if intermediate then middle lobe of mesoscutum antero-laterally without carinae or rugae, occipital carina complete, clypeus paler than face medially and/or vein r of fore wing vertical............................................................................. 13

13 Fore claw of ♀ with rather conspicuous blackish bristles (Fig. 1152 in van Achterberg, 1988) and mesosoma and first metasomal tergite reddish brown, contrasting with dark brown or blackish dorsal part of head................................................................................................... B. (T.) nigrocephalus van Achterberg, 1988 View in CoL

- Fore claw of ♀ with less conspicuous dark brownish or dark yellow bristles or only with setae (but blackish in B. (T.) gilvus and wuyishanensis ); mesosoma and first tergite darker or similarly coloured as head dorsally............................ 14

14 Pterostigma dark brown and 13th–17th antennal antennomeres of ♀ paler than 5th–12th antennomeres; length of fore wing 2.1–2.3 mm; antenna of ♀ somewhat longer than fore wing and antennomeres comparatively slender ( Fig. 10C View FIGURE 10 ); face yellowish and similarly coloured as clypeus......................................... B. (T.) antennalis van Achterberg, 1988 View in CoL

- Pterostigma brown or yellowish, if dark brown ( B. (T.) wuyishanensis ) then 13th–17th antennal antennomeres of ♀ similarly coloured as 5th–12th antennomeres or darker; length of fore wing 1.6–1.9 mm, if longer ( B. (T.) artomandibularis View in CoL ) than antenna of ♀ somewhat shorter than fore wing, its antennomeres less slender ( Figs 8 View FIGURE 8 , 14C View FIGURE 14 , 20C View FIGURE 20 , 24C View FIGURE 24 , 34C View FIGURE 34 ) and face brown, contrasting with yellowish clypeus................................................................................ 15

15 Occipital carina weak but complete medio-dorsally (but absent medio-dorsally in B. (T.) artomandibularis View in CoL ); pterostigma largely yellowish brown or brown; apical half of antenna of ♀ mainly yellowish, but apical antennomeres more or less brown; head anteriorly (except for yellowish clypeus) reddish brown...................................................... 16

- Occipital carina narrowly interrupted medio-dorsally; pterostigma rather dark brown; apical half of antenna of ♀ brown; head anteriorly (including clypeus) yellowish brown............................................................. 18

16 Vein r of fore wing vertical; pterostigma pale yellow; occipital carina absent medio-dorsally antenna of female yellow medially; hypopygium brownish; setose part of ovipositor sheath 0.27–0.39 × length of fore wing........................................................................................... B. (T.) artomandibularis van Achterberg, 1976 View in CoL

- Vein r of fore wing oblique; occipital carina weak but complete medio-dorsally; pterostigma pale brown to dark brown; antenna of female brown medially, if yellow then setose part of ovipositor sheath 0.22 × length of fore wing................... 17

17 Hypopygium pale yellow; antenna of female brown medially; first metasomal tergite distinctly widened apically ( Fig. 20G View FIGURE 20 ); setose part of ovipositor sheath 0.30–0.38 × length of fore wing................................ B. (T.) gilvus sp. nov.

- Hypopygium rather infuscated brownish; antenna of female yellowish or brownish medially; first metasomal tergite nearly parallel-sided ( Fig. 26F View FIGURE 26 ); setose part of ovipositor sheath 0.22–0.27 × length of fore wing........... B. (T.) parilis sp. nov.

18 Penultimate antennal antennomere of ♀ 3.0–3.4 times longer than wide ( Fig. 8C View FIGURE 8 ); vein r of fore wing oblique; apical quarter of antenna of ♀ dark brown and remainder yellowish or largely so................ B. (T.) angichorus van Achterberg, 1988 View in CoL

- Length of penultimate antennal antennomere of ♀ about twice its width ( Fig. 34C View FIGURE 34 ); vein r of fore wing vertical; antenna of ♀ largely brown except yellow basal antennomeres..................................... B. (T.) wuyishanensis sp. nov.

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