Key to species of Apoplophora

1 Surface of “notogaster” and ventral region reticulate................................................... A. ornata

- Surface of body not reticulate............................................................................ 2

2 Lateral carinae of prodorsum present...................................................................... 3

- Lateral carinae of prodorsum absent....................................................................... 6

3 Setae c 3 fine, smooth and shorter than other “notogastral” setae................................................. 4

- Setae c 3 covered with barbs and similar in shape to other “notogastral” setae....................................... 5

4 Setae h minute; lamellar and rostral setae short, shorter than distance between them...................... A. paraspinosa

- Setae h normal in length; lamellar and rostral setae long, longer than distance between them................... A. malaya

5 Antero-median setae on ventral plate situated far anteriorly from anal plates, on the level of antero-lateral setae (setae series h)......................................................................................... A. paraserrata

- Antero-median setae on ventral plate situated far posteriorly from the level of antero-lateral setae, close to anal plates (setae series h)...................................................................................... A. cristata

6 Sensilli smooth....................................................................................... 7

- Sensilli barbed........................................................................................ 8

7 Setae c 3 fine, smooth and shorter than other “notogastral” setae..................................... A. solomonensis

- Setae c 3 covered with barbs and similar in shape to other “notogastral” setae................................ A. serrata

8 Setae on antero-lateral position of ventral region (setae series h) absent.................................. A. minuscula

- Setae on antero-lateral position of ventral region (setae series h) present.......................................... 9

9 Setae series h rough or barbed........................................................................... 10

- Setae series h smooth or only posterior pair barbed..........................................................12

10 Setae c 3 fine, smooth and shorter than other “notogastral” setae.......................................... A. dentata

- Setae c 3 covered with barbs and similar in shape to other “notogastral” setae......................................11

11 Rostral setae thicker than other prodorsal setae, six pairs of ventral setae present........................... A. phalerata

- Interlamellar setae thicker than other prodorsal setae, five pairs of ventral setae present........................ A. kapiti

12 All dorsal setae short, distance between prodorsal setae always greater than their length....................... A. spinosa

- All dorsal setae long, distance between prodorsal setae smaller than their length................................... 13

13 Setae c 3 fine, smooth and shorter than other “notogastral” setae................................................ 14

- Setae c 3 covered with barbs and similar in shape to other “notogastral” setae...................................... 15

14 Prodorsum with distinct longitudinal striations; ventral plate with densely punctate region....................... A. aokii

- Prodorsum without longitudinal striations, and ventral plate without densely punctate region............... A. heterotricha

15 “Ano-adanal” setae smooth...................................................................... A. sarawaki

- “Ano-adanal” setae barbed or rough...................................................................... 16

16 Setae series h smooth................................................................................. 17

- Posterior pair of setae series h barbed............................................................. A. marcuardi

17 Surface of “notogaster” with arrangement of triangular elements; tritonymph with two pairs of ventral setae and two pairs of genital setae................................................................................. A. triquetra

- Surface of n”otogaster “without arrangement of triangular elements; tritonymph with three pairs of ventral setae and three pairs of genital setae........................................................................ A. pantotrema