176 GRAMMAR. OF ENTOMOLOGY. 



markings ; flight at all hours ; in the hottest sun- 

 shine, and at midnight. Plusia, Ophkisa, Heliothis, 

 Acontia, Erastria, Phytometra. 



644. Full-bodied moths {Noctuites). Larva 

 generally naked, cylindrical, robust, with ten pre- 

 hensile feet : rolls in a ring when touched. Pupa 

 smooth: mostly changes in the ground. Imago 

 with filiform antennae ; occasionally pectinated in 

 the males ; wings small, deflexed ; body stout 

 and heavy ; colour dusky ; flight very rapid ; 

 nocturnal. Brepha, Catocola. 



645. Millers (Arctiites). Larva very hairy ; 

 sometimes with bunches, brushes, or fascicles of 

 hairs ; with ten prehensile legs ; rolls in a ring 

 when touched. Pupa more or less hairy ; changes 

 in a cocoon composed of silk, in which the hairs 

 of the larva are always intermixed. Imago, the 

 males with somewhat slender bodies; more or 

 less pectinated antennae, and active ; often fly- 

 ing by day ; the females very heavy, sluggish, 

 and often apterous. Acronycta, Spilosoma, 

 Arctia Hypercampa, Lithosia, Hypogymna, Laria, 

 Orgyia. 



646. Eggars (Bombycites). Larva elongate, 

 cylindrical, of equal substance, hairy, with ten 

 prehensile feet, rolls in a ring when touched. 

 Pupa in a silken cocoon, more close than the pre- 

 ceding. Imago with pectinated antennae in both 

 sexes ; males with slender bodies, very active, and 

 fly by day ; females heavy, sluggish, and seldom 



