Neoplasta Coquillett 1895

Key to species of Neoplasta occurring in Brazil

1 Fore tibia stout, length of tibia 2– 3X width, flattened (Figs 2, 17, 38)............................................ 2

- Fore tibia slender, length of tibia more than 7X width, not flattened (Figs 9, 24, 30)................................ 4

2 Postpedicel elongate, about 4X width (Fig. 16); cercus narrow and upcurved apically (Fig. 19)...... N. longicornis sp. nov.

- Postpedicel short, about 2X width (Fig. 35); cercus wide and slightly downcurved apically (Fig. 4)................... 3

3 Fore femur with row of anteroventral and posteroventral pinnate setae (Fig. 2); mid trochanter and tibia without projections; scutum with longitudinal brown stripe medially; cercus with ventral projection near middle (Fig. 4)...... N. fortiseta Smith

- Fore femur without pinnate setae (Fig. 38); mid trochanter and tibia with ventral projections (Fig. 39); scutum without stripe; cercus with apicoventral projection (Fig. 40)................................................ N. spinulosa sp. nov.

4 Thorax mainly yellow (Fig. 23)......................................................................... 5

- Thorax dark brown to black (Figs 9, 30)................................................................... 6

5 Postpedicel elongate, about 3X width (Fig. 24); fore tibia yellow, with longitudinal brown stripe posterodorsally (Fig. 24)..................................................................................... N. macdonaldi sp. nov.

- Postpedicel short, less than 2X width; fore tibia wholly yellow.................................. N. fuscifurca Smith

6 Cercus acute at apex (Fig. 32); epandrium hemispherical (Fig. 32)............................ N. nigrithorax sp. nov.

- Cercus rounded at apex (Figs 12, 44, 46); epandrium rather suboval or subrectangular............................... 7

7 Hypandrium with lateral and ventral lobes (Figs 12, 15); subepandrial sclerite with rectangular process on posterior margin (Fig. 13)............................................................................... N. lobata sp. nov.

- Hypandrium without lobes (Figs 44, 46); subepandrial sclerite without rectangular process on posterior margin.......... 8

8 Cercus strongly enlarged, with spine-like setae on inner face (Fig. 44); phallus elongate, extending beyond hypandrium apex (Fig. 45)............................................................................ N. fregapanii Rafael

- Cercus not strongly enlarged, without spine-like setae (Fig. 46); phallus short, not extending beyond hypandrium apex (Fig. 47)................................................................................... N. neblina Rafael