THE CANADIAN ENTOMOLOGIST. 



near dorsi-meson is a pair of small brown sette ; also a pair of sette near 

 vasiform orifice, and on caudal margin of case. This latter pair is usually 

 larger than the others, the setpe extending dorso-caudad, some distance 

 beyond the margin. There is a pair of minute setaj on the margin of 

 case, one on each side, near the caudo-lateral region. On the fourth 

 abdominal segment on each side there is a group of from four to six 

 minute pores One or two pores are sometimes present on fifth segment 

 on each side, just caudad of those on fourth. Vasiform orifice somewhat 

 elevated, small, sub-elliptical, wider than long. Operculum nearly filling 

 orifice ; cephalic edge straight, lateral and caudal margins parallel with 

 margins of orifice. Lingula rather short, not reaching margin of oper- 

 culum. Rudimentary feet on ventral surface distinct. 



Adult. — 5 . Length about .8 mm. ; length of front wing, .833 mm. ; 

 width of front wing, .3 mm. ; length of antennae about .25 mm. ; length 

 of hind tarsus, .16 mm. ; length of hind tibia, .28 mm. Colour, bright 

 yellow ; tarsi and distal end of tibiaj more or less reddish ; eyes deep 

 brownish-red, varying to brownish-black. Wings all around on margin 

 reddish, deepest on cephalic margin of first pair. First pair of wings 

 spotted with bright red and brownish-black ; two irregular red spots near 

 proximal third, one on each side of the main vein, the smaller spot on 

 cephalic side ; caudal spot irregularly T-shaped. There are three or four 

 brownish-black spots on the distal fourth of wing; one at tip, into which 

 the vein merges, one cephalad, and one caudad of vein, with a fourth 

 sometimes present near vein, somewhat proximad of the others ; a light 

 clouding may also sometimes occur at base of wing just caudad of basal 

 veinlet. 



Antennae of seven joints. First joint short, sub-conical, 'not quite 

 one-half length of second ; second joint pear-shaped, somewhat truncate 

 distally, about three-fourths as wide as long; third joint long, slender, 

 slightly longer than the distal four together; fourth short, cylindrical, 

 about one-half length of fifth ; fifth, sixth and seventh subequal in length ; 

 fifth and sixth sub-cylindrical ; seventh somewhat fusitbrm, tapering 

 distally and bearing a terminal seta. Joint third, and distally, rather 

 minutely ringed. In third pair of legs, femur about three-fourths length 

 of tibia. Tarsus and claw together about three-fourths length of tibia. 

 Distal tarsal joint, excluding claw, four-fifths length of proximal. Mentum 

 three jointed ; proximal joint long, slender, about six-sevenths length of 

 distal two together ; second joint short ; third, about a fourth longer than 



