206 REPORT UPON COTTON INSECTS. 



PUPARIUM. 0.25-0.50 inch long; neither smooth nor highly polished, and varying 

 from yellowish-brown to deep brown-black in color. Insections more or less dis- 

 tinctly traceable. Head and prothoracic joint retracted; the prothoracic spiracles 

 protruding and forming two small ears about as long as joint 2; the mass of lobules 

 hardened and rufous ; joints 2 and 3 constricted and flattened, 4 suddenly bulging. 

 End of body squarely docked by spiracular cavity, the rim of which forms quite a 

 ridge. 



IMAGO. Length of body 0.23-0.56 inch. Head pale golden-yellow, especially 

 when viewed from above, with a dark brown or bronze sheen, especially below ; 

 eyes ferruginous in life, duller and bronze-colored in death ; stripe between the eyes 

 and all appendages Jet-black, thoiigh showing in fresh specimens shades of brown or 

 yellowing-brown, especially at inner base of antennae and on maxipalps. Thorax 

 pale ash-gray, with three prominent dark, 'longitudinal dorsal vittie, and two which 

 are shorter on each side, the two intervening pale dorsal spaces showing also a tar- 

 row darker line along their middle ; wings slightly fuliginous; tegulae sordid white; 

 legs black, with the front thighs grayish beneath; cushions large and pale yellowish ; 

 abdomen of the same gray inclining, in some specimens, to pale golden-yellow, espec- 

 ially behind checkered with black, the pattern varying with each change of light, 

 but 3 longitudinal lines tolerably distinct from above, the side ones approaching or 

 joining the medial one on the anterior part of each joint, and the whole looking 

 checkered as the light falls on the sides ; anus always, and frequently the hind mar- 

 gin of preceding or 4th abdominal joint, pale reddish-brown, the color deepening and 

 becoming less noticeable in the dead specimen ; the globular and highly polished $ 

 genital organ of a brighter and deeper reddish -brown. 



Described from numerous specimens reared from Sarracenia variolaris and flora. 



REMARKS. Though there is such great variation in size depending, no doubt, on 

 the amount of nourishment obtainable by the larva there is not much in coloration. 

 The species compaie tolerably well with the description of carnaria, except in 

 having a red anus, and should, perhaps, be considered only a variety of this last. 

 Whether it be any of Walker's or Desvoidy's species mentioned in Osten Sacken's cat- 

 alogue I have no means of positively knowing, but I have carefully read over the de- 

 scriptions of Meigen, Macquart, and Wiedemaun without feeling warranted in refer- 

 ring it to any of them. Several of the brief descriptions of these authors might an- 

 swer for it, barring the red anus, for a number of them consist of two or three lines, 

 without measurements ; and, for aught the student can see to the contrary, several of 

 them apply to one and the same species. 



The larva differs from Packard's description of that of carnaria in the character of 

 the prothoracic spiracle in lacking the 12 blunt spines around the anal spiracular re- 

 gion, and in having the clear space in the peritreme of the anal spiracles, by which it 

 seems to agree more with his description of Calliphora, and to indicate that this fea- 

 ture cannot be looked upon as of generic value, as Dr. Packard suggests it may be. 

 (Trans. St. Louis Alad., iii, 238.) 



Several specimens of sarraceniae have been secured the present sum- 

 mer (1879), and also what is probably a new species of Sarcophaga. 



On August 12, together with a lot of chrysalides from Alabama, were 

 received the eggs of this new flesh-fly. They appeared to have been 

 deposited singly upon the leaves which the cotton-worms had wrapped 

 about them preparatory to transforming to chrysalides. These eggs 

 were white and extremely delicate. In size they were about 1.3 mm by 

 .3 mm , or 0.0515 inch by .0119 inch. One side is flattened and in fact 

 slightly concave, so that in a profile view the egg resembles a razor- 

 shell, one end being somewhat truncate and the other rounded. The 



