204 THE CANADIAN ENTOMOLOGIST. 



with no prominences whatever. It hangs in various positions, but 

 is always attached not only by its tail, but also by a silken girth 

 around the middle, and in rare cases is also enclosed in a feeble 

 silken cocoon. Some few tropical Erycininas are said to lack the 

 transverse girth. 



a. Imago of small size and delicate structure. Front of head 

 between the eyes much narrower than high. Eyes not project- 

 ing beyond the general contour of the head, notched on the 

 inner margin, to give room for the antennal sockets. Antennae 

 including the club straight. Metathorax only slightly separated 

 from the mesothorax. Median cell of fore wings closed by a 

 weak vein ; median nervure of hind wings with three branches ; 

 the inner margin never plaited. Fore legs with no tibial epi- 

 physis, sexually heteromorphous, the tarsi of the ^ being more 

 or less atrophied. Dorsal margin of the eighth abdominal 

 segment of ^ entire. Upper organ of ^ genitalia with long, 

 slender, strongly curved lateral appendages. Egg tiarate or 

 hemispherical, and more or less deeply reticulate. Larva at 

 birth, so far as known, furnished with numerous long, tapering 

 hairs arranged in longitudinal series. Mature larva, so far as 

 known, either onisciform or cylindrical ; in the latter case the 

 body is furnished with longitudinal series of fasciated hairs. 

 Chrysalis usually short and .stout, always bluntly rounded in 

 front, the body rarely furnished with projections, and these in- 

 variably rounded. Median girth always close to the body at 

 all points, the ventral surface of the body lying in a nearly 

 uniform plane. Cremaster not at all or but slightly i)rotuberant, 

 the hooks inferior or apical. Fam. II. Lycacjiidce (Erycininse 

 -I- Lycaeninre). 



b. Imago of medium or large size. Front of head between 

 the eyes as broad as high. Eyes prominent, not infringed upon 

 by the antennal sockets. Antennae straight, or, especially the 

 club, sinuate. Metathorax markedly separate from the meso- 

 thorax. .Median cell of fore wings closed by a strong vein ; 

 median nervure of hind wing with three or four branches, the 

 inner margin sometimes plaited. Fore legs of both sexes as 

 complete as the other pairs, sometimes with an epiphysis on 



