THE CANADIAN ENTOMOLOGIST. 89 



NEW, OR LITTLE KNOWN, ALEURODID^.— IL 



BY A. L. QUAINTANCE, BIOLOGIST, GA. EXPT. STATION. 



Aleui'odes graminicola, n. sp. 



Egg. — Size, .25 X .13 mm.; uniformly brownish in colour; unmarked ; 

 oblong, truncate at base ; pedicel short, attached to one corner ; eggs 

 held nearly upright on leaf by short pedicel and truncated end. 



Larva. — Length, .7 mm. ; width, .3 mm. ; oblong-elliptical in shape ; 

 colour, yellowish-white ; eye spots reddish. There is a marginal fringe 

 all around of white cottony waxen threads. No marginal rim, and but 

 faint crenulation. In other respects, essentially as in pupa-case. 



Piipa-case. — Length, i mm. ; width, .46 mm. ; in shape, oblong- 

 elliptical. Under hand lens, yellowish-brown in colour, with a stripe of 

 dark brown, more or less interrupted, along dorsi-meson. Pupa-case 

 slightly raised from surface of leaf by a vertical fringe of white waxen 

 rods. A rounded keel extends along dorsi-meson, more pronounced 

 caudad. No marginal fringe of wax-rods, as in larva ; marginal rim very 

 narrow and indistinct. Outer margin of case rather minutely crenulated, 

 the incisions between the wax tubes shallow and usually acute. 



Abdominal segments quite distinct along middle line, but gradually 

 fading towards the margins. Second thoracic segment distinct near 

 dorsi-meson ; third thoracic segment distinct, sinuate, extending nearly to 

 margin on each side. A median suture extends cephalad from third 

 thoracic segment to margin of case. On cephalic segment is usually a 

 pair of reddish pigment spots, varying much in position and shape. 

 Dorsum destitute of setce, except a small seta on each side of vasi- 

 form orifice. A pair of well-developed setse extend caudad from caudal 

 margin of case ; also a pair of very minute setae on caudo-lateral margin, 

 a seta on each side. 



On each side of keel, along dorsi-meson, are large depressions or 

 pores, usually a pair to each abdominal segment, situated near cephalic 

 margin of segment. The orifices of these are irregularly toothed or lobed, 

 except on cephalic margin, which is formed by caudal margin of the pre- 

 ceding segment. 



Vasiform orifice, cordate, about four-fifths as wide as long ; the inner 

 lateral margins are somewhat corrugated. Operculum not quite one-half 

 length of orifice, about two-thirds as long as wide, and covered with 

 minute spines, thicker and longer on caudal margin. Lingula somewhat 

 spatulate, extending about three-fourths length of orifice ; thickly set with 



