56 ENTOMOLOGICAL SOCIETY 



the latter place he met the entomologist, Prof. J. M. Aldrich, and 

 was favorably impressed with his work. Boise City was stopped at 

 briefly, and from there he passed through Wyoming and returned 

 home. Dr. Howard's account of his trip was illustrated by many 

 photographs taken en route of objects and places of interest. 



At the conclusion, questions were asked and discussion par 

 ticipated in by Messrs. Doolittle, Gill, Kotinsky, Stiles, and 

 Schwarz. Mr. Schwarz, speaking of the Chilocorus which preys 

 upon the San Jose scale, said that C. similis, the form found in 

 North China, was extremely like our C. bivzdnerus, in fact, almost 

 indistinguishable, and more especially like the race of bivulnerus 

 occurring in California. He recalled how C. bivulnerus, origi 

 nally found on oak in Florida, transferred itself to the orange when 

 orange culture began to become general in the central part of the 

 peninsula. The beetle increased enormously, and aided very 

 materially in keeping the scale in check. It was also said that 

 the reason it was not of more benefit in more northern localities 

 was because of its being a slow breeder. 



The next paper was by Dr. Dyar, and was entitled : 



ILLUSTRATIONS OF THE EARLY STAGES OF SOME 

 DIPTERA. 



(PLATE I.) 



By HARRISON G. DYAR. 



While looking for mosquito larvae at Bellport, N. Y., the larvae 

 or pupae of several other water inhabiting flies were noticed, 

 some of which were bred. Mr. Coquillett has kindly named 

 them for me. 

 Tanypus dyari Coq. (Fig. 8.) 



Only the pupae were noticed. They occurred in the cold 

 spring pool with Culex territans, and greatly resemble mosquito 

 pupae. On comparing the figures it will be noted that they differ 

 in many proportions from Culex, but when taken in the water 

 the general resemblance was deceptive. They were, however, 

 much larger than the Culex. They have the same habits, resting 

 at the surface with the slender funnel-shaped, prothoracic air 

 tubes penetrating the surface film and quickly descend when dis 

 turbed. The anal paddles resemble those of Culex, but are more 

 hairy. 



