THE CANADIAN ENTOMOLOGIST. 91 



all around minutely crenulated, the indentures between the marginal wax 

 tubes usually rounded and shallow. There is a very narrow submarginal 

 rim formed by the wax tubes. Marginal fringe wanting. Abdominal 

 segments moderately distinct ; a straight mesal suture extends cephalad 

 to margin, from first abdominal segment. Four pairs of browish coloured 

 setae are usually present near the dorsi-meson ; a pair on the prothorax ; 

 a pair on first abdominal segment ; a pair at vasiform orifices, and a pair 

 on caudal end of case, just within the submarginal rim. The cephalic 

 two pairs are usually smaller than caudal pairs. The caudal pair is well 

 developed, the setae projecting dorsocaudad some distance beyond case. 

 There is a pair of minute setse on the margin of case near the caudo- 

 lateral region. Dorsum with numerous pores and papillae, from which 

 arise long, curved, tapering, waxen rods. The papillae are in a sub- 

 marginal row all around, rather closely set, there being sometimes as 

 many as fifty. These are somewhat variable in number and position, par- 

 ticularly in the thoracic region, where they may occur quite promiscuously 

 on the dorsum. In the abdominal region they occur in more definite 

 order, where they are in four longitudinal, somewhat curved lines. Those 

 of the mesal two rows occur in pairs, a pair to each abdominal segment, 

 except the last segment, where there may be two or more pairs. 



Vasiform orifice pyriform, not quite as broad as long ; cephalic 

 margin straight ; caudal end with acute indenture and finger-like process. 

 Inner lateral and caudal margins corrugated. Operculum sub-elliptical, 

 broader than long ; not quite one-half as long as orifice, minutely spined 

 on caudal margin. Lingula well developed, about three-fourths the length 

 of orifice. Distal part of lingula with three pairs of lateral lobes ; minu- 

 tely spined, except at base, and bearing on distal end from below a pair 

 (-■f setcG, which project caudad just beyond orifice. Rudimentary feet 

 moderately distinct. 



Adult V- — Length to tip of genitalia about 1.20 mm.; length of 

 front wing, i mm. ; width of front wing, .41 mm. ; length of hind femur, 

 .21 mm.; length of hind tibia, .38 mm. ; length of antennae, about .3 mm. 

 Body stout, light brownish-yellow in colour, with caudal margin of head, 

 and the sutures of thorax more or less margined with brownish ; legs and 

 antennae paler; eyes reddish. Front pair of wings marked with spots of 

 smoky-black. There is a small spot at base, caudad of basal veinlet ; 

 two irregular spots near middle of length of wing, one on each side of 

 wing; the caudal spot somewhat V-shaped, with the apex of the V turned 



