308 



ENTOMOLOGICAL NEWS. 



[Jan 



some larva of about middle size, i. e. about 5-6 mm., were 

 found. I could find but few of the midges. These were cling- 

 ing to the under sides of leaves of bushes bordering the stream, 

 or were slowly flying about. I saw a female catch a small fly 

 and eat it. Saw none in copulo or ovipositing. 



Between June 9th and July 1st I visited the stream often, 

 searching for the eggs, but in vain. The imagines were very 

 scarce. I could find but one or two during an hour's searching. 

 There were no larvae nor pupte left. 



Some reference to the food habits of the imagines will be 

 made in connection with the account of the mouth parts. 

 But I have little else to tell about the life-history. The rest 

 of the story is yet to be learned. 



Anatomical Notes. 



The larva. The curious shape of the larva is well shown 

 by the illustration (fig. 508) in Comstock's Manual. But Prof. 

 Cornstock is in error in explaining the character of the seg- 

 mentation of the body. The body (see Fig. 1, A) consists of 

 six parts, separated by distinct constrictions. By making 

 sagittal longitudinal sections through the body it can be 

 seen that the anterior, apparently single, segment is 

 composed of the fused head and three thoracic segments, 



FIG. 1. Blrphiroce*-a capitata Loew; A, larva, ventral aspect; B, dorso-ventral 

 section of body of larva through a sucker; /. p., lateral projection; s., Backer!; 

 g., tracheal gills; h., heart.; al. c., alimentary canal; mus., muscle; t., tendon; 

 St., "stopper" or sucker; r., rim of sucker. 



