62 THE CANADIAN ENTOMOLOGIST. 



lubes. Margin of case plainly crenulated, the incisions between wax 

 tubes shallow and acute, but furrowed somewhat entad, giving a fluted 

 marginal area. Abdominal segments distinct, thoracic segments moder- 

 ately so. There is a slight, rounded medio-dorsal ridge along abdomen. 

 Vasiform orifice triangular ; operculum subcordate ; lingula well 

 developed, subcapitate distally, the stalk rather narrow. A pair of 

 moderate, whitish setfe project caudad from caudal end of case. Size 

 of larva, probably in second stage, .63 mm. x.5 mm. 



Pupa Case. — As seen on leaf, shiny jet black and considerably 

 convex when fully developed. There is a short, uniform, rather squarely- 

 trimmed, glassy waxen fringe all around from the marginal wax tubes. On 

 dorsum of abdomen there is an interesting " top-shaped " outline, formed 

 by a narrow, more or less continuous line of whitish waxy secretion. The 

 cephalic end of the figure originates along first abdominal segment, the 

 sides curving outward and caudad, but some narrowing, the lines passing 

 on either side of the vasiform orifice, caudad of which they coalesce more 

 or less, the figure terminating in an acute point at caudal end of case. 

 Lines of wax along the sutures of the abdominal segments extend out 

 laterally from the more central, top-shaped figure, the whole forming an 

 interesting and characteristic pattern. On cephalic end of case there is an 

 irregular ellipse of wax, marking ai)proximately the head region of the 

 pupa. This dorsal secretion is most evident in the more mature 

 individuals, and may be more or less absent in the younger forms. There 

 is a very distinct suture all around, which separates from the body proper 

 the pronounced fluted marginal rim. This latter is inclined to the 

 surface of the leaf at an angle of about 45 degrees. Size variable, but 

 about 1. 35 mm. x i.i mm., roundly elliptical in form. Abdominal 

 segments distinct, and thoracic moderately so. On cephalic end of case 

 the transparent, subreniform " eye spots " very distinct. \'asiform orifice 

 triangular, subacute caudad. Operculum subcordate ; lingula difficult to 

 make out, but probably as in larva. From caudal end of orifice a distinct 

 furrow extends back to caudal end of case. Margin crenulated all 

 around, the incisions between wax tubes shallow and acute ; on latero- 

 cepiialic margin of case, on each side, a single tubular pore, noticeably 

 distinct from adjacent wax lubes. Pupa case of general type of A. 

 qucrcus-aquatiae, Quaint., from Florida. 



Aihilt. — 9  Body yellowish, with sutures mostly l)lackish. Length 

 about .83 mm.; fore vving, 1.2 mm. x .56 mm.; anlennye and legs usual, 



