Pambolini

Belokobylskij, Sergey A. & Villemant, Claire, 2016, A new genus of the tribe Pambolini (Hymenoptera: Braconidae: Exothecinae) from the Papua New Guinea with a key to the World genera, Zootaxa 4098 (2), pp. 383-391 : 389-390

A key to the World genera of the tribe Pambolini

1. Brachy-, micro- or apterous forms........................................................................ 2

- Macropterous forms................................................................................... 6

2. Propodeum always with distinct and subpointed or rounded lateral spines (thorns) or tubercles. Scape of antenna usually with very distinct incisure on apical lower margin (except Chremylus ). Propodeum with areas distinctly delineated by carinae... 3 - Propodeum without ( Eupambolus ) or with very short ( Dimeris ) lateral tubercles. Scape of antenna without or sometimes with shallow incisure on apical margin. Propodeum without areas delineated by carinae................................. 5

3. Dorsal margin of scape (lateral view) weakly longer than ventral margin. Propodeal spiracles situated before middle of first tergite. Hypoclypeal depression wide and rounded. Mesosoma long and not high, 1.8–2.0 times longer than high. Postpectal carina absent. Propodeal tooth distinctly compressed. Suture between second and third metasomal tergites present but fine. All World........................................................................... Chremylus Haliday, 1833

- Dorsal margin of scape (lateral view) much longer than ventral margin. Propodeal spiracles situated at or behind middle of first tergite. Hypoclypeal depression rather narrow and oval. Mesosoma short and high, 1.4–1.6 times longer than high. Postpectal carina present. Propodeal tooth not compressed. Suture between second and third metasomal tergites completely absent.... 4

4. Vertex, temple, and mesopleuron mostly granulate or reticulate-granulate. Female always micropterous; male always macropterous with second radiomedial vein (r-m) of fore wing always absent. All World......... Pambolus Haliday, 1836

- Vertex, temple, and mesopleuron mostly smooth. Female and male almost always macropterous, rarely (male of Ph. achterbergi Belokobylskij, 1986 ) wings more or less shortened, but extending beyond middle of metasoma; second radiomedial vein (r-m) of fore wing always present. All World........................................... Phaenodus Foerster, 1862

5(2). Malar suture present. Ocellar triangle with base about 1.5 × larger than sides. Propodeum with short lateral tubercles. Maxillary palpus with six segments; labial palpus with four segments. Third segment of maxillary palpus of male strongly widened. Third metasomal tergite with posterior semi-transparent flange. Fore wing of female strongly shortened, lancet-shaped; male macropterous. Western Palaearctic Region.................................................. Dimeris Ruthe, 1854

- Malar suture absent. Ocellar triangle with base about equal to sides. Propodeum without lateral tubercles. Maxillary palpus with four segments; labial palpus with three segments. Third segment of maxillary palpus of male not widened, normal size. Third metasomal tergite without posterior flange. Wings of female and male completely absent. Central Palaearctic Region.................................................................................. Eupambolus Tobias, 1964

6(1). Suture between second and third metasomal tergites present, but sometimes fine. Tergites of mesosoma usually relatively weakly sclerotized; second tergite of female often sculptured, entirely or almost entirely granulate-reticulate or striate. Lateral tubercles short or very short. Scape of antenna without or with weak incisure on apical lower margin................... 7

- Suture between second and third metasomal tergites always absent. Tergites of mesosoma always coarsely sclerotized; second tergite of female entirely smooth, very rarely striate basally at short distance. Lateral tubercles long (except some males). Scape of antenna with very deep incisure on apical lower margin (except Dimeris ).................................. 9

7. Propodeum without areas delineated by carinae. Metascutum mediodorsally with long and apically rounded process. Eyes with long and sparse setae. Australasian Region...................................... Pilichremylus Belokobylskij, 1992

- Propodeum with areas (at least areola) delineated by distinct carinae. Metascutum mediodorsally without or with short process. Eyes usually without setae............................................................................. 8

8. Vertex smooth. Antennal sockets widely separated each from other. Head strongly and almost linearly narrowed below eyes (front view). Recurrent (m-cu) vein of fore wing antefurcal. Mesosoma short, about 1.5 times longer than maximum width. Propodeum with long mediobasal carina . Second tergite with striation on wide area. Oriental Region...................................................................................... Plesiocedria van Achterberg et Chen, 2004

- Vertex coarsely rugose-reticulate with granulation partly. Antennal sockets situated closely to each other. Head weakly and roundly narrowed below eyes (front view). Recurrent (m-cu) vein of fore wing interstitial or weakly postfurcal. Mesosoma long, about 2.0 times longer than maximum width. Propodeum without or with short mediobasal carina . Second tergite smooth or faintly granulate-coriaceous, without striation. All World................................ Chremylus Haliday, 1833

9(6). Acrosternite of first metasomal segment strongly elongate continuing far behind spiracles of first tergite; first tergite petiolate. Eyes with long and sparse setae. Dorsal part of ovipositor with distinct subapical notch. Australasian Region........................................................................................... Spathiophaenodus gen. nov.

- Acrosternite of first metasomal segment not elongate, ending distinctly before spiracle of first tergite; first tergite not petiolate. Eyes usually without setae. Dorsal part of ovipositor without subapical notch..................................... 10

10. Propodeal spines (thorns) of female very short and thick. Ovipositor upcurved, it and sheaths distinctly depressed dorsoventrally. Occipital carina interrupted dorsally. Australasian Region............ Notiopambolus van Achterberg et Quicke, 1990

- Propodeal spines (thorns) of female long and narrow. Ovipositor predominantly straight, it and sheaths not depressed dorsoventrally. Occipital carina usually complete dorsally....................................................... 11

11. Female and male (with single exception) macropterous; second radiomedial vein (r-m) of fore wing always present in both sexes. Vertex, temple and mesopleuron mostly smooth. All World........................... Phaenodus Foerster, 1862

- Female always micropterous or brachypterous; male macropterous and always without second radiomedial vein (r-m) in fore wing. Vertex, temple and mesopleuron mostly granulate or reticulate-granulate................................... 12

12. Scape of antenna with very deep incisure on apical lower margin. Malar suture absent. Third segments of maxillary palpus of male not widened. Propodeum with areas delineated by carinae. Length of first metasomal tergite usually not less or weakly less than its apical width. Suture between second and third tergites absent. Third tergite without semi-transparent fringe along posterior margin. Parallel vein (CU1a) of fore wing not interstitial. All World................... Pambolus Haliday, 1836

- Scape of antenna with weak incisure on apical lower margin. Malar suture present. Third segments of maxillary palpus of male strongly widened. Propodeum without areas delineated by carinae. Length of first metasomal tergite significantly less than its apical width. Suture between second and third tergites present but weak. Third tergite with distinct semi-transparent fringe along posterior margin. Parallel vein (CU1a) of fore wing interstitial. Western Palaearctic Region..... Dimeris Ruthe, 1854