Cerroneuroterus, Melika & Pujade-Villar, 2010

Pujade-Villar, Juli, Wang, Yiping, Guo, Rui, Sala-Nishikawa, Alba, Cuesta-Porta, Victor, Arnedo, Miquel A. & Melika, George, 2020, A new species of Cerroneuroterus Melika & Pujade-Villar from the Eastern Palaearctic (Hymenoptera, Cynipidae, Cynipini), Zootaxa 4869 (4), pp. 515-528 : 523

Key to Cerroneuroterus females

1 Mesoscutum and mesoscutellum alutaceous or weakly coriaceous.................................. C. obtectus (sex)

- Mesoscutum and mesoscutellum smooth and shining......................................................... 2

2 Notauli absent or indicated by line of setae................................................................. 3

- Notauli present, complete or rarely incomplete, but then the metasoma is longer than head+mesosoma and F1 at least 1.3x as long as F2........................................................................................... 5

3 Legs brown; body darkish brown.......................................................... C. minutulus (asex)

- Legs entirely or partially yellow, body or at least mesosoma black............................................... 4

4 Coxa and middle 3/4 part of femur brown, tips of femur, tibia and tarsus yellow; R 1 in forewing equal in length to 2r.......................................................................................... C. cerrifloralis (sex)

- Legs pale yellow; R 1 in forewing longer than 2r.............................................. C. aggregatus (sex)

5 Metasoma elongate, longer than head+mesosoma; F1 at least 1.3x as long as F2.................................... 6

- Metasoma higher than long, never longer than head+mesosoma and body black; F1 variable.......................... 8

6 Notauli complete, deeply impressed along entire length; propodeum sculptured between propodeal carinae; mesosoma with more or less extended light brown areas................................................. C. vonkuenburgi (asex)

- Notauli incomplete or complete, deeply impressed in posterior half, rarely completely absent; propodeum smooth, without carinae; mesosoma black............................................................................... 7

7 Mesoscutum as long as broad; median mesoscutal sulcus absent; mesoscutellum flat in lateral view..... C. folimargo (asex)

- Mesoscutum longer than broad; median mesoscutal sulcus present, very short; mesoscutellum humped in lateral view......................................................... C. yukawamasudai Pujade-Villar & Melika sp. nov. (asex)

8 Notauli deeply impressed along entire length; propodeum sculptured between propodeal carinae. Head and mesosoma ambarine, vertex and area between notauli light brown............................................ C. vonkuenburgi (sex)

- Notauli incomplete or if complete than shallow and/or deeply impressed only posteriorly; body black.................. 9

9 Gena not visible in frontal view, hidden behind eye......................................................... 10

- Gena well visible behind eye in frontal view............................................................... 11

10 F1 at least 1.3x as long as F2; notaulus complete, reaches pronotum............................... C. monzeni (asex)

- F1 shorter; notauli incomplete, invisible in anterior 1/3 of mesoscutum length........................ C. monzeni (sex)

11 Lower face with distinct micropunctures; pronotum laterally with distinct white setae; metascutellum broad, nearly 2.0x as broad as high; 2.0x as high as height of ventral impressed rim of metanotum..................... C. lanuginosus (asex)

- Lower face without micropunctures; pronotum laterally without setae; metascutellum narrow, nearly as high as broad; 3.0 - 4.0x as high as height of ventral impressed rim of metanotum.................................... C. gyulaigaraiae (asex)