LEPIDOPTERA. 305 



The Pseudo-Tineae content themselves with mining the interior 

 of the vegetable and animal substance on which they feed, and 

 forming simple galleries, or if they construct sheaths either with 

 those matters or silk, they are always fixed, and are mere places of 

 retreat. 



These caterpillars which perforate in various directions the pa- 

 renchyma of the leaves on which they feed, have been called Mineuses 

 or Miners. They produce those desiccated spaces in the form of 

 spots and imdulating lines, frequently observed on leaves. Buds, 

 fruits, and seeds of plants, frequently those of wheat, and even the 

 resinous galls of certain Coniferae, serve for aliment and habitations 

 to others. These Insects are frequently ornamented with the most 

 brilliant colours. In several species the superior wings are decorated 

 with golden or silver spots, sometimes even in relievo. 



Some, in which the four palpi are always distinct*, exposed, or 

 merely partly concealed (the superior ones) by the scales of the cly- 

 peus, salient, and of a moderate size, resemble Phalsenee — P. pyra- 

 lides, L. ; — their tectiform wings most frequently flattened, or but 

 slightly raised, form an elongated triangle or sort of delta. 



Sometimes the proboscis is very apparent, and serves for its ordi- 

 nary use. The caterpillars of these species live on various plants. 



BoTYs, Lat. 

 These caterpillars are leaf-rollers, and do not differ externally 

 from the others, as to their organs of respiration. 



B. xirticata; P. urlicata L.; Roes., Insect., I, Phal. XIV. 

 Thorax and extremity of the abdomen yellow; wings white, 

 with blackish spots, forming bands. 



Its caterpillar folds the leaf of the Nettle, and remains nine 

 months in its cocoon before it becomes a nymph ; it is naked 

 and green, with a deeper stripe of the same colour along the 

 back. 



The same plant nourishes the caterpillar of another spe- 

 cies — the P. verticalis, L. — Roes., Ibid. I, Phal., 4, iv. The 

 perfect Insect is pale -yellowish, glossy, with some obscure trans- 

 verse lines most apparent underneath f . 



Hydrocampe, Lat. 



This subgenus is composed of species very analogous to the pre- 

 ceding ones, but their caterpillars are aquatic, and usually furnished 

 with appendages resembling long hairs, inside of which are tracheae. 



* The Yponomeutse, one or two excepted, CEcophorEe and Adelse are almost the 

 only Tineites whose maxillary palpi are not very apparent; but as they may be con- 

 cealed by the inferior ones, and as it is very difficult to establish in this respect a 

 fixed and rigorous line of demarcation, we have not thought proper to divide the 

 Tineites according to the number of those organs. M. Savigny, in his Memoirs on 

 the invertebrate animals, has published some figures iu which they have various pro- 

 poitions. The new genera, which he merely mentions, are unknown to us. 



t The PhaltPiiDC forficalis, pwpuraria, margarituHs, alpinaUs, sangvinalis, &c. of 

 Fabricius. 



