lefismijDJe:. 415 



xlcL Tribe LEPISMID.E. 



The Lepismidce are composed of two well-marked divisions, the 

 one without scales and also without eyes ; the other with both 

 scales and eyes, and the scales of the same type as those of the 

 Collembola. They have all got mandibles ; farther than that, we 

 do not know much of their habits. Unlike the Collembola they 

 prefer dry and warm or even hot localities. 



Sect. I. — Without Scales. 



Sir John Lubbock takes this division first, and we have followed 

 him, although we should have preferred to bring them last, as we 

 think the genera Lepisma and Machilis are more closely united 

 to the Collembola than it is. Their scales, aspect, and coloration, 

 which often reveal affinities, which the actual structure has not 

 prepared us for, all, we think, indicate that the nearer relationship 

 is with the second section. But it is for everyone's convenience 

 to follow a recognised authority, even when we differ from him 

 (unless the difference be extreme), and therefore we proceed first 

 with the section which contains the two latter genera. This is 

 represented in Britain by only a single species. 



No. 24. Campodea staphylinus {IVeshu.). — 24. Magnified sketch of ditto. 



An elongated parallel soft white insect, which is common in 

 loose damp earth. The chief interest, both in this species and 

 the next, lies in its structure and affinities. 



^'o. 25. Japyx solifugus {Halliday).—25. Magnified sketch of ditto. 



This is a species of another genus (Japyx), which is as well 

 entitled to a section for itself as Campodea. It has a pair of 

 forceps at the tail fashioned like those of the earwig. It occurs 

 in the Mediterranean district, and as far north as Paris, but has 

 not been found further north, nor in Britain. 



