CLASSIFICATION OF INSECTS. 177 



fly; predominating colour, fulvous. Eriogaster, 

 Odonestis, Gastropacha, Lasiocampa. 



647. Emperor-moths (fhalcenites}. Larva 

 obese, with fascicles of bristles disposed in rings 

 on each segment. Pupa short, obtuse, flat, with 

 bristles at the tail ; changes in a tough pear- 

 shaped cocoon, of which the smaller end remains 

 open. Imago with highly pectinated antennas 

 in both sexes ; wings amazingly expanded ; 

 the fore wings more or less falcate ; beautifully 

 coloured, and ocellated ; body short and small ; 

 flight of the males diurnal, of the females rare, 

 and mostly in the evening. Saturnia. 



648. Prominents (Notodontites). Larva gene- 

 rally naked ; sometimes slightly downy ; atte- 

 nuated towards the tail, with eight prehensile 

 feet ; the two posterior ones being mostly wanting, 

 and the segment usually bearing them elevated in 

 the air. Pupa smooth, obese, compact; mostly 

 changes in a cocoon or web, but occasionally on 

 or in the ground. Imago with the antennae of the 

 males more or less pectinated ; wings deflexed ; 

 flight, with few exceptions, in the evening. En- 

 dromis, Cerura, Stauropus, Platypteryx, Cilix, 

 Notodonta, Pygcera, Clostera. 



649. Wood-eaters (Xyleutites}. Larva depressed, 

 rather attenuated towards either extremity ; naked, 

 except a few scattered hairs ; prothorax flat and 

 corneous ; ten prehensile feet ; feeds on the bark, 

 solid wood, pith, or roots of vegetables. Pupa 



N 



