608 Mr. H. T. Stainton on 



known, and we obtain new species of Gelechia from every part of 

 the globe where Micro-Lepidoj^tera have been collected. It must 

 be understood, therefore, that in this Table I do not allude to the 

 genus Gelechia in its entire extentj but only to those larvae which 

 are miners ; some of these are only miners in their early youth, 

 whereas others continue miners till they are quite full fed ; all 

 the larvae in this group are able to move freely from one leaf to 

 another. The differences in the mines of some of these genera are 

 not very evident — but Bedellia and Cosmopteryx have the mines 

 always perfectly clean, the excrement being carefully ejected from 

 a hole in the surface of the mine. The pupation at once distin- 

 guishes Acrolepia, Cosmopteryx and Bedellia ; the last-named has 

 an angulated suspended pupa (it appears to be a rule that when- 

 ever a pupa is suspended or only supported by a silken girth it 

 should be more or less angulated, and that the pupae in cocoons 

 should always be of more regular forms); the pupa oi Cosinopteryx 

 is enclosed in an opaque, white silk cocoon, rather pointed at 

 each end; and the pupa o^ Acrolepia is enclosed in an open net- 

 work cocoon, very similar to a cocoon of the genus Plutella, The 

 larvae of the genus Coleophora cease to be true miners when very 

 young, but the greater part of them continue miners after a 

 fashion till they are quite full fed. Out of their first mine these 

 larva construct a portable case, by cutting out the two sides of 

 the leaf, which they fasten together with silk, and from this case, 

 when moving from one leaf to another, they exsert only a few of the 

 anterior segments ; this portable case they then attach to the un- 

 derside of a leaf and bore into the interior, feeding between the 

 skins of the leaf, and the larva often quite coming out of its case 

 in its exploration of the interior of the leaf which it is eating — in 

 short, the main difference between a Coleophora larva and other 

 mining larvse is, that it has unlimited means of locomotion. A 

 few of the larger species of the genus only gnaw the surface of 

 the leaves, but the bulk of the species are either leaf-miners or 

 seed-borers. 



The four genera composing the next group have this pecu- 

 liarity in common, that the larva are all apodal. On referring to 

 the two last columns of the Table it will be seen that in all the 

 previous genera the larvas have legs and prolegs, with the excep- 

 tion of Nepl'icula and Phyllocnistis. In Ncpticula indeed we do 

 find certain ventral projections, which have been assumed to 

 serve for legs, but there is nothing of the articulate character of a 

 true leg ; but in the group of Antispila, Tinagma, Tinea bistri- 



