Dialodia

Nielson, M. W., 2011, 2953, Zootaxa 2953, pp. 1-85 : 29

Key to species of Dialodia (males)

1. Aedeagus with 1–2 long spines on shaft, spines serrate or not................................................... 2

- Aedeagus with many spines or setae on shaft, processes very small to moderately long, spines never serrate............. 11

2. Aedeagus with 1 spine.................................................................................. 3

- Aedeagus with 2 spines................................................................................. 6

3. Style with prominent lateral lobe......................................................................... 4

- Style without such lobe................................................................................. 5

4. Style with prominent, subquadrate, subapical lobe ( Nielson 1988, Fig. 16); aedeagus with glabrous spine ( Nielson 1988, Fig. 15).......................................................................... ( Brazil) D. alyssae (Nielson)

- Style with small medial lobe ( Nielson 1982, Fig. 763; aedeagus with glabrous spine... ( Peru, Ecuador) D. pectinata (Nielson)

5. Aedeagus with spine bulbous and serrate apically ( Nielson 1988, Fig. 45)...........( Ecuador) D. parapectinata (Nielson)

- Aedeagus with spine glabrous, without serrations ( Nielson 1982, Fig. 759)............... ( Ecuador) D. glabrosa (Nielson)

6. Style in lateral view with prominent lateral lobe............................................................. 7

- Style in lateral view without lobe......................................................................... 8

7. Style with small, lateral subdistal lobe ( Fig. 165)................................. ( Colombia) D. brevilobata , sp. nov.

- Style with elongate medial lobe ( Fig. 173)...................................... ( Colombia) D. longilobata , sp. nov.

8. Aedeagus with both spines glabrous....................................................................... 9

- Aedeagus with 1 of 2 spines prominently serrate............................................................ 10

9. Forewing with fuscous longitudinal band on costa: aedeagus with distal spine long, nearly reaching to apex of shaft ( Nielson 1982, Fig. 772); subgenital plate with lateral margins nearly parallel ( Nielson 1982, Fig. 771)... ( Peru) D. proxima (Nielson)

- Forewing without such band; aedeagus with distal spine not reaching apex of shaft ( Nielson 1982, Fig. 779); subgenital plate with lateral margins convex in distal third ( Nielson 1982, Fig. 777)...................... ( Ecuador) D. negans (Nielson)

10. Aedeagus in lateral view with short spines, distal spine with row of long prominent secondary spines laterally ( Fig. 184); connective with median rib, base long, slender ( Fig. 185)............................... ( Colombia) D. bispinata , sp. nov.

- Aedeagus in lateral view with long spines, distal spine with row of short secondary spines laterally ( Figs. 175, 176); connective with median rib, stem very short ( Figs. 175, 176)..................................( Colombia) D. bilongata , sp. nov.

11. Style in lateral view very broad medially ( Fig. 196); aedeagus in dorsal view with shaft broad in distal 4/5 ( Fig. 199); connective narrowly Y-shaped ( Fig. 200)............................................ ( Colombia) D. brevisetacea , sp. nov.

- Style in lateral view narrow medially ( Fig. 204); aedeagus in dorsal view with shaft narrow throughout ( Fig. 207); connective broadly Y-shaped ( Fig. 209)................................................. ( Colombia) D. aviculobata , sp. nov.