Key to species of genus Calodia from the Indian subcontinent (Males)
1. Pygofer with caudoventral process (Figs. 15 H, 16 H)........................................................ 2
- Pygofer without caudoventral process (Figs. 18 G, 19 H)...................................................... 8
2. Aedeagus with both processes arising at midlength and appressed to shaft (Figs. 14 C, D) (India: Bida)................................................................................................... C. bicompressa Nielson
- Aedeagus with both processes arising more apically and not appressed to shaft (Figs. 15 A–D)........................ 3
3. Aedeagus with both processes glabrous (Figs. 15 A–D)....................................................... 4
- Aedeagus with proximal process trifid (Figs. 23 A–B) (India: Kerala)............................. C. tridenta sp. nov.
4. Pygofer caudoventral process lobe-like (Fig. 15 H)........................................................... 5 - Pygofer caudoventral process slender elongate (Figs. 16 H, 17 H, 20 H).......................................... 6
5. Aedeagus with distal process 3x as long as proximal process (Figs. 21 A–C) (India: Kerala)........... C. periyari sp. nov.
- Aedeagus with distal process about 2x as long as proximal process (Figs. 15 A–D) (India: Tamil Nadu).. C. deergha sp. nov.
6. Style apophysis thin and slender in dorsal view (Fig. 16 F) (India: Kerala)......................... C. keralica sp. nov.
- Style apophysis thicker in dorsal view (Figs. 17 F, 20 F)...................................................... 7
7. Subgenital plate with subapical margin serrated (Fig. 17 E) (India: Karnataka, Tamil Nadu)...... C. kodikanelensis Nielson
- Subgenital plate with smooth subapical margin (Fig. 20 E) (India: Andhra Pradesh, Karnataka, Kerala, Tamil Nadu; Sri Lan- ka).................................................................................. C. ostenta (Distant)
8. Aedeagus with processes equal in length, arising almost apically and both with secondary spines (Figs. 14 M–N) (India: Arunachal Prdesh)................................................................... C. propennata Nielson
- Aedeagus with processes unequal in length and distinctly arising subapically, one being more proximal than the other (Figs. 22 A–C)............................................................................................... 9
9. Aedeagus with proximal process bifid (Fig. 22 A) or trifid (Fig. 18 A)........................................... 10
- Aedeagus with four or more secondary spines on proximal process (Fig. 14 F).................................... 12
10. Aedeagus with proximal process trifid (Figs. 18 A–B) (India: Karnatka)............................ C. kumari sp. nov.
- Aedeagus with proximal process bifid (Figs. 22 A–B)....................................................... 11
11. Aedeagus with proximal process forked near base (Figs. 22 A–B) (India: Tamil Nadu)............... C. subscripta Nielson
- Aedeagus with proximal process forked near apex (Fig. 14 J) (Sri Lanka)....................... C. paraostenta Nielson
12. Aedeagus with proximal process about as long as distal process and with secondary setae in distal half length (Fig. 14 F) (Sri Lanka)................................................................................ C. fusca (Melichar)
- Aedeagus with proximal process 1 ½ x as long as distal process and with secondary setae in distal ¾ (Figs. 19 A–B) (India: Karnataka, Kerala)..................................................................... C. neofusca sp. nov.