THE CANADIAN ENTOxMOLOGIST. 281 



two marginal pores, followed first by a spine and then by a plate, which 

 is about as long as the median lobes, and often forked at the tip. Outside 

 of this plate are two marginal pores, followed by a spine and one or two 

 plates, then afiei another marginal pore a group of about t'our plates. 



There are five groups of spinnerets : median, 8-15 ; anterior laterals, 

 19-31 ; posterior laterals, 13-23. 



Scale of male. — The male scale, as in all other species of*this genus, 

 is elongated in form and white in colour. The sides are nearly parallel, 

 and it is distinctly tri-carinated. Length, about i mm. The larval skin 

 resembles the anterior or smaller one of the female scale. 



Male. — Male insect unknown. 



Dicovered by Mr. Craw, July 8, 1897, at San Francisco, on the bark 

 of Wistaria from Japan, 



Chionaspis pinifolice heteropliyllce, n var. 



Scale 0/ female. — The scale of the female is indistinguishable from 

 that oi pinifolice, Fitch, having the same range of form and size, the 

 colour of the scale and exuviae being the same. The scales vary in size 

 from 2 mm. to 3.4 mm., the average length being about 2.5 mm. The 

 scale is white, strongly convex, with the exuviae at the anterior extremity 

 yellow, both skins being naked. 



Female. — The description of the female is made from dead and 

 shriveled specimens. At the anterior end of the body are two distinct, 

 curved bristles, which may be the rudiments of the antennge ; these are 

 found also in pinifolice. The last segment terminates in a median notch, 

 the sides of which are formed by the divergent median lobes. The lobes 

 of the second pair are low and inconspicuous, and each one is composed 

 of two lobules of about equal size. Two minute spines, one above and 

 one below, arise from near each median lobe, though back from the edge 

 of the segment. Contiguous to each median lobe is a simple plate, 

 outside of which is a marginal pore. Between the lobules of the second 

 lobe is a distinct spine, and outside of this lobe is a plate with a spine at 

 its base, followed by a marginal pore. Outside of the rudimentary third 

 lobe is a marginal pore, followed by a spine and a plate with a spine at 

 its base. Then follows a pronounced marginal pore, a short interval, 

 another space and a long interval, interrupted only by a spine, and 

 terminated by the fourth and last plate. 



There are five groups of spinnerets : median, 4-S ; anterior laterals, 

 12-18 ; posterior laterals, 14-16. The chief characters by \\\V\c\\ pinifolice 



