Neuroterus (Kieffer, 1904)

Melika, George, Pujade-Villar, Juli, Abe, Yoshihisa, Tang, Chang-Ti, Nicholls, James, Wachi, Nakatada, Ide, Tatsuya, Yang, Man-Miao, Pénzes, Zsolt, Csóka, György & Stone, Graham N., 2010, 2470, Zootaxa 2470, pp. 1-79 : 25

Key to the Neuroterus and sexual forms of Cerroneuroterus species

1 Female ........................................................................................................................................................................... 2

- Male ............................................................................................................................................................................ 20

2 Lateral propodeal carina distinct; wings always hyaline .............................................................................................. 3

- Lateral propodeal carina absent or indistinct, sometimes interrupted, fragmented; wings often with fuscous patch around 1st abscissa of radius ........................................................................................................................................ 6

3 Notaulus complete, deeply impressed; transscutal articulation complete medially, mesoscutum not fused with mesoscutellum; antenna with 12 – 13 flagellomeres ...................................................................................................... 4

- Notaulus absent or very superficially impressed anteriorly; transscutal articulation absent or incomplete, absent medially; mesoscutum emarginate posteriorly and fused with mesoscutellum, antenna with 11 – 12 flagellomeres ... 5

4 Body darkish brown to black; mesoscutum and mesoscutellum with sparse setae; mesoscutum smooth and shiny, laterally faintly alutaceous; notaulus deep; scutellar foveae confluent, indistinctly delimited ......................................... .................................................................................................................................... Neuroterus anthracinus , sexual

- Body light brown to amber; mesoscutum and mesoscutellum with moderately dense setae; mesoscutum entirely coriaceous-alutaceous; notaulus shallow; scutellar foveae present, indistinctly separated ............................................ ................................................................................................................................. Neuroterus anthracinus , asexual

5 Tarsal claw with basal lobe; mesoscutum and mesoscutellum smooth and shiny; antenna with 11 flagellomeres ....... .......................................................................................................................................... Neuroterus politus , asexual

- Tarsal claw simple; mesoscutum coriaceous; mesoscutellum coriaceous to rugulose; antenna with 12 flagellomeres ............................................................................................................................................ Neuroterus politus , sexual

6 Hind tarsal claw simple, without basal lobe ................................................................................................................ 7

- Hind tarsal claw with basal lobe ................................................................................................................................. 15

7 Notaulus absent or incomplete and superficially impressed ........................................................................................ 8

- Notaulus complete, deeply impressed posteriorly and superficial in anterior half ...................................................... 9

8 Notaulus superficial, incomplete; wings infuscate, especially in upper-distal half; basal half of metasoma reddish yellow; antenna with 13 flagellomeres .............................................................................. Neuroterus tricolor , sexual

- Notaulus absent or indicated by line of setae; wings without infuscation, metasoma different; antennae with 12 flagellomeres (sexual females of Cerroneuroterus , and Pseudoneuroterus saliens ) ................................................. 10

9 Malar sulcus present........................................................................................................ Neuroterus tricolor , asexual

- Malar sulcus absent ..................................................... Cerroneuroterus , asexual females (not included into the key)

10 Mesoscutum and mesoscutellum alutaceous or weakly coriaceous .................................... Cerroneuroterus obtectus

- Mesoscutum and mesoscutellum smooth and shiny ................................................................................................... 11

11 Legs brown; body darkish brown...................................................................................... Cerroneuroterus minutulus

- Legs entirely or partially yellow, body or at least mesosoma black .......................................................................... 12

12 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 ........................................................................................................................................ Cerroneuroterus cerrifloralis

- Legs pale yellow; R 1 in forewing longer than 2r ...................................................................................................... 13

13 Pedicel equal in length to scape; F3 and subsequent flagellomeres less than 2.0 times as long as broad, last flagellomeres subquadrate ( Fig. 32); mesoscutum and mesoscutellum glabrous, smooth and shiny, without piliferous punctures; propodeum weakly rugose and usually with distinct median carina ............ Cerroneuroterus aggregatus

- Pedicel shorter than scape; F3 and subsequent flagellomeres more than 2.0 times as long as broad; last flagellomeres longer than broad; mesoscutum and mesoscutellum different, sometimes with setae and/or sculptured or with piliferous punctures; propodeum without median carina ................................................................................................... 14