Aneuclis, Forster, 1869

Khalaim, Andrey I., 2018, The genera Allophrys Förster and Aneuclis Förster (Hymenoptera: Ichneumonidae: Tersilochinae) of Vietnam, Zootaxa 4378 (3), pp. 414-428 : 423

Key to species of Aneuclis occurring in Vietnam

1. Fore wing with second recurrent vein (2 m-cu) distinct ( Fig. 34 ). Ovipositor upcurved ( Fig. 31 )........................ 2

- Fore wing with second recurrent vein (2 m-cu) completely absent ( Figs 19, 22 ). Ovipositor short and straight ( Fig. 25 ) or long and sinuate apically.................................................................................... 3

2. Flagellum with 14 flagellomeres, unusually slender, with flagellomeres 2 and 3 almost 4.0× as long as broad ( Fig. 27 ). Vertex more or less smooth, shining. Head, in dorsal view, with temple 0.45× as long as eye width ( Fig. 28 ). Fore wing with second recurrent vein (2 m-cu) distinctly postfurcal ( Fig. 26 ). Propodeum with apical area widely rounded anteriorly; basal keel 0.5– 0.6× as long as apical area ( Fig. 30 ). Ovipositor strongly upcurved at extreme apex, without dorsal teeth ( Fig. 31 ), its height at midlength about 1.5× width of hind basitarsus............................................. A. achterbergi sp. nov.

- Flagellum with 16 flagellomeres, robust, with flagellomeres 2 and 3 about 1.3× as long as broad ( Fig. 33 ). Vertex granulate, dull ( Fig. 32 ). Head, in dorsal view, with temple 0.65× as long as eye width ( Fig. 32 ). Fore wing with second recurrent vein (2 m-cu) interstitial ( Fig. 34 ). Propodeum with apical area pointed anteriorly; basal keel short, 0.3× as long as apical area ( Fig. 35 ). Ovipositor more or less evenly upcurved apically, with two sharp dorsal subapical teeth ( Fig. 36 ), its height at midlength equal to width of hind basitarsus........................................................... A. devriesi sp. nov.

3. Foveate groove of mesopleuron shallow, as densely granulate area, sometimes with fine irregular wrinkles ( Fig. 17 ). Basal keel of propodeum about 0.6× as long as apical area ( Fig. 18 ). Fore wing with metacarpus (R 1) very short ( Fig. 19 ). Ovipositor longer than metasoma, sinuate apically..................................................... A. pumilus (Holmgren)

- Foveate groove sharp and deep, crenulate, extending almost entire length of mesopleuron ( Fig. 23 ). Basal keel of propodeum 0.8–1.0× times as long as apical area ( Fig. 24 ). Fore wing with metacarpus (R 1) almost reaching fore wing apex ( Figs 20, 22 ). Ovipositor short and straight, about as long as apical depth of metasoma ( Fig. 25 )................. A. secunda (Khalaim)

Figures

FIGURES 32–36. Aneuclis devriesi, holotype ♀: 32—head and mesoscutum, dorsal; 33—head with antennae, lateral; 34— apex of fore wing; 35—propodeum and base of metasoma, dorsal; 36—apex of ovipositor, lateral.

FIGURES 26–31. Aneuclis achterbergi, holotype ♀: 26—habitus, lateral; 27—antennae, lateral; 28—head, dorsal; 29—head and mesosoma, lateral; 30—propodeum, dorsolateral; 31—ovipositor, lateral.

FIGURES 19–25. Aneuclis pumilus, ♀: 19—apex of fore wing.Aneuclis secunda, ♀: 20—holotype, habitus,lateral; 21—head with antenna, lateral; 22—fore wing; 23—mesosoma and metasoma; 24—propodeum and base of metasoma, dorsal; 25—apex of metasoma with ovipositor.

FIGURES 14–18. Allophrys tonkina sp. nov., holotype ♀: 14—head with antenna, lateral; 15—head, mesosoma and base of metasoma, lateral; 16—propodeum, dorsal.Aneuclis pumilus, ♀: 17—head and mesoscutum,lateral; 18—propodeum and base of metasoma, dorsolateral.