Entomobryinae, Schaffer, 1896

Jordana, Rafael & Greenslade, Penelope, 2020, Biogeographical and ecological insights from Australasian faunas: the megadiverse collembolan genus, Entomobrya (Entomobryidae), Zootaxa 4770 (1), pp. 1-104 : 5

Key to Australian Entomobryinae genera

Genera underlined indicate that there are no described species in Australia but the genus has been recorded in publication.

1 Scales or chaetal-like scales present....................................................................... 7

- Scales absent......................................................................................... 2

2. Mucro with one tooth.................................................................................. 3

- Mucro with two teeth.................................................................................. 5

3. 8 + 8 Ocelli present.................................................................................... 4

- Ocelli reduced, only 1 + 1 present................................................................ Coecobrya

4. Clavate tenent hairs or unguis greatly expanded distally, numerous macrochaetae on body..................... Isotobrya

- Clavate tenent hairs normally developed, no expanded tip to unguis, few macrochaetae on body............... Drepanura

5. Ocelli reduced or absent, fewer than 6 + 6.............................................................. Sinella

- Ocelli present, usually 8 + 8 or 6 + 6...................................................................... 6

6. No spines on dens............................................................................ Entomobrya

- Spines on dens................................................................................. Homidia

7. Scales sparse, long, thin, very narrow..................................................................... 8

- Scales normally fairly abundant, broad, pointed or rounded................................................... 10

8. Mucro with one tooth......................................................................... Drepanosira

- Mucro with two teeth.................................................................................. 9

9. Abdomen VI greatly extended, several times longer than abdomen V in adult females....................... Epimetrura

- Abdomen VI not greatly elongated, shorter than abdomen V.................................................. 21

10. Scales hyaline, pale, striations hardly visible, macrochaetae on dorsum sparse.................................... 11

- Scales not hyaline, darker, striations and ribs clearly visible, macrochaetae on dorsum abundant...................... 16

11. Ocelli fewer than 8 + 8 or absent, wing like teeth present on unguis............................................. 15

- Ocelli 8 + 8 although two may be reduced, no wing like teeth present on unguis................................... 12

12. Ocelli G and H clearly reduced, spinule present on mucro.............................................. Setogaster

- Ocelli G and H not reduced, spinule not present on mucro.................................................... 13

13. Spines on dens.............................................................................. Acanthurella

- No spines on dens.................................................................................... 14

14. Scales absent from antennae, legs and posterior region of manubrium.................................... Lanocyrtus

- Scales present on antennae, legs and posterior region of manubrium.................................... Lepidocyrtus

15. Single tooth on mucro........................................................................ Sinelloides *

- Two teeth on mucro......................................................................... Pseudosinella

16. Spines on dens............................................................................. Acanthocyrtus

- No spines on the dens................................................................................. 17

17. Mucro with one tooth................................................................................. 18

- Mucro with two teeth................................................................................. 19

18. Antenna IV and III simple, mucro without spine.......................................................... Seira

- Antenna IV and III annulated................................................................. Lepidocyrtinus

19. Scales broad, ribbed, sharply pointed............................................................... Willowsia

- Scales broad but not pointed, mainly rounded.............................................................. 20

20. Large specimens, usually more than 2 mm long, long antennae, thorax II longer than III and often projecting over posterior border of head, anterior surface of manubrium with 4 + 4 blunt chaetae.............................. Lepidocyrtoides