Cynipini

Tang, Chang-Ti, Melika, George, Nicholls, James A., Yang, Man-Miao & Stone, Graham N, 2011, A new genus of oak gallwasps, Cycloneuroterus Melika & Tang, with the description of five new species from Taiwan (Hymenoptera: Cynipidae: Cynipini), Zootaxa 3008, pp. 33-62 : 36-37

Key to the Palaearctic Genera of Cynipini which lack the transscutal articulation

(see illustrations for characters in Melika et al. (2010))

1 Head and mesosoma with dense white setae....................... Trichagalma and Pseudoneuroterus , asexual females

- Head and mesosoma with sparse setae, if dense then only on lower face and head posteriorly......................... 2

2 Notaulus deep, usually complete, reaching pronotum, mesoscutum and mesoscutellum always smooth, shiny, without surface sculpture; mesoscutellum laterally and posteriorly emarginate.......... Cerroneuroterus , asexual females and sexual (part)

- Notaulus absent or incomplete, extending to half length of mesoscutum, if traceable in the anterior half only than mesoscutum and/or mesoscutellum entirely or at least partially alutaceous or delicately coriaceous (sexual forms only)............... 3

3 Malar sulcus usually present or at least traceable; hind tarsal claw usually with basal lobe; in male antenna F1 slightly or not modified, never expanded and flattened, sometimes only slightly curved or similar in shape to F2 (both generations).................................................................................................... Neuroterus

- Malar sulcus always absent; hind tarsal claw simple, without basal lobe; in male antenna F1 strongly modified, expanded and flattened distally...................................................................................... 4

4 Females ............................................................................................ 5

- Males............................................................................................... 9

5 Prominent part of ventral spine of hypopygium with two subapical lateral lumps, spine tri-forked, each lump with 5-8 long setae, extending far beyond apex.................................................................. Latuspina

- Prominent part of ventral spine of hypopygium always straight, pointed to the apex, without two subapical lateral lumps... 6

6 Gena broadened behind eye, visible in anterior view..................... Pseudoneuroterus and Cerroneuroterus (part)

- Gena not broadened behind eye, not visible in anterior view.................................................... 7

7 Transfacial distance longer than height of compound eye; pronotum foveolate prolong anterior margin; lateral propodeal carina complete, strongly arised.................................................................. Cycloneuroterus

- Transfacial distance shorter than height of compound eye; pronotum invaginated but not foveolate prolong anterior margin; lateral propodeal carina absent or incomplete................................................................ 8

8 Mesoscutellum uniformly alutaceous or smooth, without sculpture...................... Cerroneuroterus , sexual females

- Mesoscutellum around its limits reticulate rugose, smooth and shiny in the central part......... Trichagalma , sexual females

9 Pedicel as long as scape, both strongly flattened and broad, at least twice broader than flagellomeres........... Latuspina

- Pedicel always shorter than scape, if equal in length than both less flattened and broad, less than twice broader than flagellom- eres............................................................................................... 10

10 Lateral propodeal carina complete, distinct, strongly arised, compound eyes and ocelli not enlarged, the same size as in females....................................................................................... Cycloneuroterus

- Lateral propodeal carina incomplete, fragmented or absent; compound eyes and ocelli enlarged, distinctly larger than in females............................................................................................ 11

11 Head transverse in anterior view, gena visible behind compound eye in anterior view............... Cerroneuroterus (part)

- Head rounded, nearly as high as broad in anterior view, gena not visible behind compound eye in anterior view.......... 12

12 Mesoscutum longer than broad, mesoscutellum uniformly alutaceous, propodeum with fragmented lateral propodeal carinae....................................................................................... Pseudoneuroterus

- Mesoscutum subequal, nearly as long as broad, mesoscutellum smooth, shiny or only partially alutaceous in center, propodeum without lateral propodeal carinae........................................................................ 13

13 Mesoscutellum smooth, shiny, only central part (disk) alutaceous................................... Cerroneuroterus

- Mesoscutellum around its limits reticulate rugose, smooth and shiny in the central part.................... Trichagalma