Adeliini Viereck, 1918,

Ranjith, A. P., Achterberg, C. Van, Samartsev, K. G. & Nasser, M., 2021, Discovery of the chelonine tribeAdeliini Viereck, 1918 (Hymenoptera: Braconidae) from the Indian subcontinent with the description of a new genus from south India, Zootaxa 4926 (1), pp. 1-25: 2-3

publication ID

https://doi.org/10.11646/zootaxa.4926.1.1

publication LSID

lsid:zoobank.org:pub:F151B4E4-26FD-42CE-9F4D-0D8931AAF93F

DOI

http://doi.org/10.5281/zenodo.4500472

persistent identifier

http://treatment.plazi.org/id/5466E313-FFA4-511B-519C-FB1EFE0DFBD6

treatment provided by

Plazi

scientific name

Adeliini Viereck, 1918
status

 

Tribe Adeliini Viereck, 1918 

Diagnosis. Head transverse, sculptured ( Figs 1BView FIGURE 1, 3DView FIGURE 3, 5BView FIGURE 5, 7BView FIGURE 7, 9CView FIGURE 9, 11KView FIGURE 11, 12IView FIGURE 12, 13BView FIGURE 13, 15CView FIGURE 15, 17BView FIGURE 17); ocelli small; frons flat or concave medially, with or without midlongitudinal groove ( Figs 1CView FIGURE 1, 4CView FIGURE 4, 5CView FIGURE 5, 7CView FIGURE 7, 9DView FIGURE 9, 11CView FIGURE 11, 12CView FIGURE 12, 13CView FIGURE 13, 15DView FIGURE 15, 17CView FIGURE 17); eyes setose ( Figs 1BView FIGURE 1, 3DView FIGURE 3, 5BView FIGURE 5, 7BView FIGURE 7, 12IView FIGURE 12, 13BView FIGURE 13, 15CView FIGURE 15, 17BView FIGURE 17) or glabrous ( Figs 9CView FIGURE 9, 11KView FIGURE 11); malar suture complete and deep ( Figs 1EView FIGURE 1, 3DView FIGURE 3, 5D & EView FIGURE 5, 7DView FIGURE 7, 10B & EView FIGURE 10, 11I & KView FIGURE 11, 15EView FIGURE 15); occipital carina often complete, joining hypostomal carina ventrally ( Figs 4AView FIGURE 4, 6AView FIGURE 6, 8AView FIGURE 8, 10AView FIGURE 10, 14AView FIGURE 14, 16AView FIGURE 16), rarely absent ventrally ( Figs 1A & EView FIGURE 1) (in Carinadelius  gen. nov.) without joining hypostomal carina; palps short and thick, maxillary palp often 5-segmented ( Figs 1EView FIGURE 1, 4AView FIGURE 4, 13EView FIGURE 13) rarely 3-segmented ( Fig. 12FView FIGURE 12) (in Paradelius  ), labial palp 3-segmented; antenna more or less thickened, 20–22 antennomeres; scape rather long, wide; pedicel short; first flagellomere longer than second; subapical flagellomeres of female quadrate in several species ( Figs 2AView FIGURE 2, 5AView FIGURE 5, 7CView FIGURE 7); tentorial pits deep ( Figs 1BView FIGURE 1, 3DView FIGURE 3, 5BView FIGURE 5, 7BView FIGURE 7, 9CView FIGURE 9, 11KView FIGURE 11, 12IView FIGURE 12, 13BView FIGURE 13, 15CView FIGURE 15, 17BView FIGURE 17); clypeus smooth or sculptured ( Figs 1BView FIGURE 1, 3DView FIGURE 3, 5BView FIGURE 5, 7BView FIGURE 7, 9CView FIGURE 9, 11KView FIGURE 11, 12IView FIGURE 12, 13BView FIGURE 13, 15CView FIGURE 15, 17BView FIGURE 17); labrum concealed by clypeus ( Figs 1BView FIGURE 1, 3DView FIGURE 3, 5BView FIGURE 5, 7BView FIGURE 7, 9CView FIGURE 9, 11KView FIGURE 11, 12IView FIGURE 12, 13BView FIGURE 13, 15CView FIGURE 15, 17BView FIGURE 17); mesosoma often dorso-ventrally flattened ( Figs 1EView FIGURE 1, 4BView FIGURE 4, 6BView FIGURE 6, 7FView FIGURE 7, 10BView FIGURE 10, 11IView FIGURE 11, 13EView FIGURE 13, 15EView FIGURE 15, 17EView FIGURE 17); propleuron short, crenulate posteriorly ( Figs 1EView FIGURE 1, 4BView FIGURE 4, 6BView FIGURE 6, 7FView FIGURE 7, 10BView FIGURE 10, 11IView FIGURE 11, 13EView FIGURE 13, 15EView FIGURE 15, 17EView FIGURE 17); propleural lobe distinct or indistinct ( Figs 1EView FIGURE 1, 4BView FIGURE 4, 6BView FIGURE 6, 7FView FIGURE 7, 10BView FIGURE 10, 11IView FIGURE 11, 13EView FIGURE 13, 15EView FIGURE 15, 17EView FIGURE 17); mesoscutum smooth to sculptured ( Figs 1DView FIGURE 1, 4CView FIGURE 4, 5FView FIGURE 5, 7EView FIGURE 7, 9FView FIGURE 9, 11LView FIGURE 11, 12BView FIGURE 12, 13DView FIGURE 13, 15DView FIGURE 15, 17CView FIGURE 17); notauli absent ( Figs 1DView FIGURE 1, 4CView FIGURE 4, 5FView FIGURE 5, 7EView FIGURE 7, 9FView FIGURE 9, 11LView FIGURE 11, 12BView FIGURE 12, 13DView FIGURE 13, 15DView FIGURE 15, 17CView FIGURE 17); prepectal carina often absent ( Figs 1EView FIGURE 1, 4BView FIGURE 4, 6BView FIGURE 6, 7FView FIGURE 7, 10BView FIGURE 10, 11IView FIGURE 11, 13EView FIGURE 13, 15EView FIGURE 15), rarely present ( Fig. 12HView FIGURE 12, 17EView FIGURE 17) (in Sinadelius  and Paradelius  ); postpectal carina absent ( Fig. 9EView FIGURE 9); scutellar sulcus narrow, crenulated ( Figs 1DView FIGURE 1, 4CView FIGURE 4, 5FView FIGURE 5, 7EView FIGURE 7, 9FView FIGURE 9, 11LView FIGURE 11, 12BView FIGURE 12, 13DView FIGURE 13, 15DView FIGURE 15, 17CView FIGURE 17); mesopleuron convex, smooth or sculptured ( Figs 1EView FIGURE 1, 4BView FIGURE 4, 6BView FIGURE 6, 7FView FIGURE 7, 10BView FIGURE 10, 11IView FIGURE 11, 12HView FIGURE 12, 13EView FIGURE 13, 15EView FIGURE 15, 17EView FIGURE 17); precoxal sulcus smooth or crenulate entirely ( Figs 1EView FIGURE 1, 4BView FIGURE 4, 6BView FIGURE 6, 7FView FIGURE 7, 10BView FIGURE 10, 11IView FIGURE 11, 12HView FIGURE 12, 13EView FIGURE 13, 15EView FIGURE 15, 17EView FIGURE 17); metapleuron smooth ( Figs 1EView FIGURE 1, 7FView FIGURE 7, 10BView FIGURE 10, 13EView FIGURE 13, 17EView FIGURE 17) or rugose ( Figs 4BView FIGURE 4, 6BView FIGURE 6, 15EView FIGURE 15); propodeum smooth or sculptured, often areolate, either divided into distinct anterior and posterior part or not ( Figs 1FView FIGURE 1, 4D & EView FIGURE 4, 6CView FIGURE 6, 8BView FIGURE 8, 10C & DView FIGURE 10, 11DView FIGURE 11, 12BView FIGURE 12, 13FView FIGURE 13, 14BView FIGURE 14, 16BView FIGURE 16, 17FView FIGURE 17, 18AView FIGURE 18), rarely with distinct midlongitudinal carina and vertical lateral carina posteriorly ( Fig. 1FView FIGURE 1) (in Carinadelius  gen. nov.); propodeal spiracles round; fore wing hyaline ( Figs 7AView FIGURE 7, 10EView FIGURE 10, 11AView FIGURE 11, 12AView FIGURE 12, 14CView FIGURE 14, 18CView FIGURE 18) or infuscated ( Figs 2CView FIGURE 2, 4FView FIGURE 4, 6DView FIGURE 6, 16CView FIGURE 16); pterostigma wide; vein 1-R1 distinct, long ( Figs 2CView FIGURE 2, 4FView FIGURE 4, 6DView FIGURE 6, 10EView FIGURE 10, 12AView FIGURE 12, 14CView FIGURE 14, 18CView FIGURE 18) to nearly absent ( Figs 7AView FIGURE 7, 9AView FIGURE 9, 11AView FIGURE 11); fore wing vein r present ( Figs 7AView FIGURE 7, 9AView FIGURE 9, 11B & FView FIGURE 11) or absent ( Figs 2CView FIGURE 2, 4FView FIGURE 4, 6DView FIGURE 6, 12AView FIGURE 12, 14CView FIGURE 14, 18CView FIGURE 18); vein r-m absent ( Figs 2CView FIGURE 2, 4FView FIGURE 4, 6DView FIGURE 6, 7AView FIGURE 7, 10EView FIGURE 10, 11AView FIGURE 11, 12AView FIGURE 12, 14CView FIGURE 14, 16CView FIGURE 16, 18CView FIGURE 18); vein SR1 not reaching wing margin; vein 1SR+M either connected with parastigma or 1-M; vein m-cu often postfurcal or interstitial ( Figs 2CView FIGURE 2, 4FView FIGURE 4, 6DView FIGURE 6, 7AView FIGURE 7, 10EView FIGURE 10, 11AView FIGURE 11, 12AView FIGURE 12, 14CView FIGURE 14, 16CView FIGURE 16, 18CView FIGURE 18); vein M+CU straight or distinctly curved ( Figs 2CView FIGURE 2, 4FView FIGURE 4, 6DView FIGURE 6, 7AView FIGURE 7, 10EView FIGURE 10, 11AView FIGURE 11, 12AView FIGURE 12, 14CView FIGURE 14, 16CView FIGURE 16, 18CView FIGURE 18); vein cu-a antefurcal, interstitial or postfurcal ( Figs 2CView FIGURE 2, 4FView FIGURE 4, 6DView FIGURE 6, 7AView FIGURE 7, 10EView FIGURE 10, 11AView FIGURE 11, 12AView FIGURE 12, 14CView FIGURE 14, 16CView FIGURE 16, 18CView FIGURE 18); subdiscal cell open; hind wing with 3 hamuli; basal cell of hind wing narrow; mid coxa with transverse groove dorsally ( Figs 4BView FIGURE 4, 6BView FIGURE 6, 7FView FIGURE 7, 16DView FIGURE 16); hind coxa smooth or rugose; hind femur and tibia flattened; hind tibial spurs long, inner spur approx. 0.5 × as long as basitarsus; hind basitarsus long, 0.8–0.9 × as long as combined length of 2 nd– 5 th tarsomeres; tarsal claws short, simple ( Fig. 12EView FIGURE 12); metasoma smooth or sculptured ( Figs 2BView FIGURE 2, 4EView FIGURE 4, 6CView FIGURE 6, 8BView FIGURE 8, 10DView FIGURE 10, 11DView FIGURE 11, 12GView FIGURE 12, 14BView FIGURE 14, 16BView FIGURE 16, 18AView FIGURE 18), often compressed dorso-ventrally; metasomal tergites 1–3 formed into carapace, smooth or rugose; first and second metasomal suture present ( Figs 12GView FIGURE 12, 14BView FIGURE 14, 16BView FIGURE 16, 18AView FIGURE 18) or absent ( Figs 2BView FIGURE 2, 4EView FIGURE 4, 6CView FIGURE 6, 8BView FIGURE 8, 10DView FIGURE 10, 11DView FIGURE 11, 16BView FIGURE 16); spiracle of metasomal tergites 6–7 absent; ovipositor short, always less than 0.25 × as long as hind tibia.

Genera included. Adelius Haliday  , Carinadelius Ranjith & van Achterberg  , gen. nov., Myriola Shestakov  reinstated, Paradelius de Saeger  , Sinadelius He & Chen  , and Sculptomyriola Belokobylskij. 

Distribution. Cosmopolitan.

Biology. Solitary endoparasitoids of leaf-mining Nepticulidae  .

Comments. Shimbori et al. (2019) discussed possible apomorphic and synapomorphic character states between Cheloninae  and Adeliini  . Apart from the synapomorphic characters, the number of antennomeres is considered as plesiomorphic character to some extent (E.M. Shimbori, personal communication). Within the tribe it has been also found ( Kittel & Austin 2014; Kittel et al. 2015, 2016) that the division of the propodeum into distinct anterior and posterior parts (in Adelius  , Sinadelius  and Sculptomyriola  ) is a plesiomorphic character as it is absent in other genera (in Carinadelius  gen. nov., Myriola  and Paradelius  ). It is suggested that the new genus Carinadelius  is probably derived from the genus Adelius  .