The MALE differs in having the _head_ rather wider than the thorax, the _vertex_ where the ocelli are placed more protuberant, the _mandibles_ very large and more acutely bidentate, sometimes largely forcipate and with but one acute tooth; the males in most species greatly differ from their females.
None of these insects exhibit any positive colouring of the integument, excepting in some upon the abdomen, which exhibits red bands, and is disposed to vary considerably in intensity and breadth, and in some the _clypeus_ and _face_ are of a cream-colour, but which occurs chiefly among the males. They are very dissimilar in general appearance, some being densely pubescent all over, others merely so on the head and thorax; others are banded with white decumbent down, and some are wholly unmarked upon the abdomen. These peculiarities help to group them, and thus facilitate their recognition.
§ _Banded with red on the abdomen, the segments of which are more or less fringed._
1. _Hattorfiana_, Fab., ♂ ♀. 6—7 lines. _Lathamana_, Kirby, ♀. _hæmorrhoidalis_, Kirby, ♀. 2. _zonalis_, Kirby, ♂ ♀. 4½-5 lines. 3. _florea_, Fabricius, ♂ ♀. 5-6½ lines. _Rosæ_, Kirby, var. 4. _Rosæ_, Panzer, ♂ ♀. 4-6 lines. (Plate III. fig. 1 ♂ ♀.) _Rosæ_, Kirby, ♀. 5. _decorata_, Smith, ♂ ♀. 5-6½ lines. 6. _Schrankella_, Kirby, ♂ ♀. 4-5 lines. _ affinis_, Kirby. 7. _cingulata_, Fabricius, ♂ ♀. 3½-4 lines. (Plate III. fig. 3 ♂ ♀.) _cingulata_, Kirby.
§§ _Abdominal segments edged with decumbent short down, or fringed with long hair._
8. _longipes_, Shuckard, ♂ ♀. 4-6 lines. (Plate III. fig. 2 ♂ ♀.) 9. _chrysosceles_, Kirby, ♂ ♀. 3½-4½ lines. 10. _dorsata_, Kirby, ♂ ♀. 4-4½ lines. _combinata_, Kirby. _nudiuscula_, Kirby. 11. _connectens_, Kirby. 5 lines. 12. _Wilkella_, Kirby, ♀. 5¾ lines. 13. _Coitana_, Kirby, ♂ ♀. 4 lines. _Shawella_, Kirby. 14. _labialis_, Kirby, ♂ ♀. 5½-6 lines. 15. _Lewinella_, ♂. 3¾ lines. 16. _xanthura_, Kirby, ♂ ♀. 3½-6 lines. _ovatula_, Kirby. 17. _Collinsonana_, Kirby, ♂ ♀. 3½-4½ lines. _digitalis_, Kirby. _proxima_, Kirby. 18. _albicrus_, Kirby, ♂ ♀. 4-5½ lines. _barbilabris_, Kirby. 19. _minutula_, Kirby, ♂ ♀. 2½-3½ lines. _parvula_, Kirby. 20. _nana_, Kirby, ♀. 3½ lines. 21. _convexiuscula_, Kirby, ♂ ♀. 5 lines. 22. _Kirbyi_, Curtis, ♀. 6 lines. 23. _fuscata_, Kirby, ♀. 4½ lines. 24. _Afzeliella_, Kirby, ♂ ♀. 4½-5 lines. 25. _fulvicrus_, Kirby, ♂ ♀. 3½-5¼ lines. _contigua_, Kirby. 26. _fulvago_, Christ. ♂ ♀. 4-4½ lines. _fulvago_, Kirby. 27. _tibialis_, Kirby. 5-7¼ lines. _atriceps_, Kirby. 28. _Mouffetella_, Kirby, ♂ ♀. 5-7 lines. 29. _nigro-ænea_, Kirby, ♂ ♀. 5-6½ lines. 30. _bimaculata_, Kirby, ♂. 5½ lines. 31. _Trimmerana_, Kirby, ♂ ♀. 5-6 lines. 32. _conjuncta_, Smith, ♀. 5½ lines. 33. _varians_, Rossi, ♂ ♀. 4-5½ lines. 34. _helvola_, Linnæus, ♂ ♀. 5-5½ lines. _picipes_, Kirby, ♂. _angulosa_, Kirby. 35. _Gwynana_, Kirby, ♂ ♀. 4-5½ lines. _pilosula_, Kirby. 36. _angustior_, Kirby, ♂ ♀. 4-5 lines. 37. _picicornis_, Kirby, ♂ ♀. 5-6 lines. 38. _spinigera_, Kirby, ♂ ♀. 5-6 lines. 39. _Smithella_, Kirby, ♂ ♀. 3-6 lines. 40. _Lapponica_, Zetterstedt, ♂ ♀. 3½-5½ lines. 41. _tridentata_, Kirby, ♂. 4½ lines. 42. _denticulata_, Kirby, ♂ ♀. 4-5½ lines. _Listerella_, Kirby. 43. _nigriceps_, Kirby, ♀. 5 lines. 44. _pubescens_, Kirby, ♂ ♀. 4-5 lines. _rufitarsis_, Kirby. _fuscipes_, Kirby.