38 Proceedings of the lioi/al Irish Academy. 



each side of the head, a lateral stripe along all the body-segments, paired 

 l__j-shaped markings on the hinder edge of the metatei-gum, a strong 

 transverse band ou the hinder edge of the third abdominal segment, two 

 pairs of longitudinal streaks running forward from the hinder edge of the 

 fourth abdominal segment, and nearly the whole of the fifth and sixth 

 abdominal segments. 



Length 1'3 mm. 



Localities.— Mahe: Foret Noire, 1000 ft. (October, 1908); Cascade, 

 1000 ft. (1905); Mare aux Gochons, 1000-2000 ft. (January, 1909). 

 Silhouette (1908j. 



It seems hard to find clear structural characters for defining the species 

 of Entomobrya. In the longitudinal violet bands on the fourth abdominal 

 segment, E. seycliellarum recalls the European E. nivalis DG., but the definite 

 transverse band on the third segment serves to differentiate the present insect. 



Lepidocyrtus Bourlet. 

 This widely spread genus, whose members are scaled, and have the head 

 overhung more or less by the mesothorax, appears to be especially well 

 repi'esented in tropical countries. 'J'lie Seychelles collection contains no less 

 than seven species — nearly half the total number of Entomobryinae, so that 

 the dominance of the genus is strikuigly exemplified. The Seychelles 

 Lepidocryti may be distinguished thus : — 



A. Mucro slender, with the terminal tooth strongly procurved 

 dorsalwards. 



i. Feelers not more than twice as long as the head. 



m. Colour uniformly dark except spring and segmental 



sutures. Mesonotum rather prominent, L. silvestris. 

 11. Colour pale, with dark lateral streaks, thighs and 

 antennal segments with terminal dark rings. 

 Mesonotum very prominent, . . L. annulicornis. 

 0. Colour pale, except for darkening of third and 

 fourth antennal segments. Mesonotum less 



prominent, L. ohscuricornis. 



p. Colour pale, except for lateral patches on fourth 

 abdominal sterna and at tip of hind thighs. 

 Mesonotum rather prominent, . L. stramineus. 

 ii. Feelers much more than twice as long as head. 

 Mesonotum very prominent. 



q. Feelers about three times as long as head, L. Fryeri. 

 r. Feelers nearly three-quarters as long as body, 



Z. imperialis. 



