10 



land, D. C. ; Louisa County, Va. ; Harpers Ferry, TT. Va. ; \Yooster 

 and elsewhere in Ohio; Indiana; Pekin, Urbana, (Forbes and Hart), 

 Chicago, and central parts of Illinois; Kalamazoo, Mich. ; North Caro- 

 lina; Texas (Belfrage); Key West, Fla. ; St. Louis, and central part 

 of Missouri; Alameda (A. Koebele) and Los Angeles (Coquillett), Cal. 

 The fact of this species being so well established as a greenhouse 

 pest and preferring indoor life to that of the field, is at least strongly 

 suggestive of exotic and even tropical origin. From the above list of 

 localities it will be seen that it occurs from semi-tropical portions of 

 Florida through the Lower and L^pper Austral life zones to what is at 

 present considered Transition. For a species of its habits there is no 

 reason why it should not become established, at least in greenhouses, 

 still farther north in colder latitudes. 



THE EGG AND OVIPOSITION. 



Eggs are deposited singly or in masses of from two to nine or more; 

 when laid in groups the different eggs composing it overlap as shown 

 in the illustration (fig. 1, c). Many such groups may sometimes be 

 found under a single leaf. 



The egg. — The tgg is scale-like in appearance; when first laid, clear 

 gra} T ish white in color, and so nearly translucent as to show the color 

 of the surface, e. g., the green of a leaf, upon which it is deposited; 

 the exterior surface shining glassy and iridescent; flattened upon the 

 surface of deposition; convex above and somewhat variable in outline 

 but usualty broadly ovate. The surface is rather strongly and rather 

 finely rugose, irregularly subreticulate. The average length is about 



0. 8 mm and the width 0. 65 



nun 



THE LARVA AND PUPA. 



TJie full-grown larva. — The larva when full grown presents the 

 appearance indicated by e and d of figure 1. It is green or greenish yel- 

 low in color and somewhat translucent; the head is whitish and rather 

 faintly spotted with small purplish spots (fig. 1, /"), and the first tho- 

 racic segment is marked on each side by a small but conspicuous round 

 black dot. Along the dorsum the green ground color of the body 

 shows as a narrow, rather conspicuous median green line, and on each 

 side of this is a double line of white. The legs show on their outer 

 surface two little round black dots and the prolegs are rather long and 

 prominent. The surface is very sparsely hairy. The mature larva, 

 when extended at full length in natural feeding position, is nine or 

 ten times as long as wide, measuring about three-fourths of an inch 

 (18-20 mm ) in length and only about a twelfth of an inch in width (2 mm ). 



The pupa. — The pupa is dark, shining brown, and bears along its 

 dorsal surface conspicuous hairs, as shown in the illustration (fig. 1) at h. 

 It measures about three-eighths of an inch in length (T.5 mm ). 



