THE STATE ENTOMOLOGIST. 93 



with black on the thighs and shanks, in the c? abdomen being 

 comparatively shorter, and in its third ring conspicuously overhang- 

 ing the fourth. The following account and description from Mr. Saun- 

 ders himself, is taken from the November number of the Canadian 

 Entomologist : 



" In October I detached a larva from the inside of the seed, and 

 placed it in a. small glass cell between two plates of glass, in which 

 state it remained until early in January, when it became a pupa, hav- 

 ing first attached itself to the sides of the cell by a few short silky 

 threads. It had now contracted in length, become nearly oval, and 

 assumed a yellowish tint, with a few short loose silky threads adher- 

 ing to different parts of its surface. On the 11th of February I exam- 

 ined some seeds and found the larva within, still alive and active, just 

 as it appeared in the fall. On the 7lh of July further specimens were 

 opened and the inmates found soft and motionless ; these appeared to 

 be in the pupa state, but I did not examine them with sufficient care 

 to enable me to be positive. During the remaining part of July, I 

 looked many times into the bottles in which the grapes were enclosed 

 but could not discover anything. On the 9th of August, feeling sure 

 that the time for the appearance of the insect must be fully come, if 

 not already past, I resolved on a thorough search for it. As soon as 

 the contents of the bottles had been emptied on a piece of white 

 paper,! observed a number of small four- winged flies among the 

 dried-up grapes. They were all dead and stiff, some of them more 

 brittle than others. From the observations made, I should judge that 

 they made their escape from the middle to the end of July." 



Isosoma titis, Saunders, $— Head large, flattened in front, black, thickly punctured, and cov- 

 ered with many short whitish haira ; mandibles pale brown at base, tipped with black; antennae 

 (scape and 8 joints), 9-jointed, black, thickly covered with whitish hairs inserted in deep sockets ; 

 the scape pale brown, slender, nearly as long as the three following joints together ; the second short ; 

 third to eighth inclusive nearly equal in length ; the terminal joint longer, tapering slightly 

 towards the tip. Thorax black, punctured and covered with whitish hairs. Legs, front pair pale 

 brown, trochanters nearly black ; second and third pairs, trochanters black, femora and tibisa 

 nearly black along the middle, pale brown at tips ; tarsi pale brown. Abdomen, long, black, 

 straight, smooth, with a polished surface; placed on a short pedicel ; a little contracted at base, 

 thickest on third joint, tapering gradually to fifth, and then suddenly to extremity; the basal 

 joint very short, second and third each somewhat longer, fourth as long as the three preceding, 

 fifth less than half as long as fourth, sixth a little shorter, terminal joint rather longer. 



$ differs from § in having the antennae somewhat longer and more thickly covered with 

 hairs. His abdomen is short, thick and blunt, placed on a moderately stout pedicel nearly its own 

 length. The abdominal rings have about the same relative size as in the female, but the posterior 

 edge of third overhangs the fourth, the latter appearing as if partially drawn within the project- 

 ing edge of the third ring. 



Length $ 0.10, $, 0.06 inch. 



u Having kept the grapes in bottles, only occasionally opened for 

 ventilation, in a dry room, they had become quite hard, dry and shriv- 

 elled. In consequence of this, many of the flies were unable to make 

 their way out, the seed having become too hard for their jaws to eat 

 through. On opening some of these the flies were found dead with 

 wings fully developed and surrounded by small fragments of the in- 

 terior coating of the seed which they had evidently gnawed off while 



