Atrichopogon (Meloehelea)

Marino, Pablo I., Tóthová, Andrea & Spinelli, Gustavo R, 2011, Two new Patagonian species of Atrichopogon (Meloehelea) (Diptera: Ceratopogonidae), Zootaxa 2777, pp. 61-68 : 62

Key to Patagonian species of Atrichopogon (Meloehelea)

1. Males.............................................................................................. 2

- Females............................................................................................. 5

2. Antenna normally developed........................................................................... 3

-. Antenna female-like.................................................. Atrichopogon (M.) monomorphicus sp. n.

3. Aedeagal-parameral complex with lateral margins of posteroventral process sinuate, posteromedial portion deeply notched.................................................................. Atrichopogon (M.) chilensis Ingram & Macfie

- Aedeagal-parameral complex with lateral margins of posteroventral process convex, posteromedial portion slightly notched 4

4. Wing membrane without macrotrichia; gonostylus with three apical teeth.... Atrichopogon (M.) obnubilus Ingram & Macfie

- Wing membrane with macrotrichia on r3; gonostylus with one subapical tooth...... Atrichopogon (M.) macrodentatum sp. n.

5. Wing with numerous macrotrichia on cua1 and anal cell................... Atrichopogon (M.) chilensis Ingram & Macfie

- Wing with scarce or without macrotrichia on cua1 and anal cell................................................ 6

6. Mandible with small teeth............................................................................... 7

- Mandible with strong teeth.............................................. Atrichopogon (M.) macrodentatum sp. n.

7. Wing with few macrotrichia on cua1 and anal cell; flagellomeres 1–8 vasiform..................................................................................................... Atrichopogon (M.) obnubilus Ingram & Macfie

- Wing without macrotrichia on cua1 and anal cell; flagellomeres 1–8 compressed, slightly broader than long.................................................................................. Atrichopogon (M.) monomorphicus sp. n.