72 



Fly {Cecidomyia destructor, Say.), with infected straw, and 

 remarked that his exhibit came from Gloucestershire, which 

 he thought was as far west as the insect had yet been found. 

 That it was likely to become permanently established in this 

 country he considered very doubtful. The present year 

 seemed to have been exceedingly favourable for its multipli- 

 cation on account of the extreme dryness ; he had heard it 

 suggested that warm humid seasons were most suitable for 

 its increase, but he thought this was exceedingly improbable, 

 as in Russia and Central Europe, where it occurred, the 

 summers were generally dry. After one or two wet seasons 

 he had very little doubt that the species would disappear 

 from Britain altogether. It was also probable that it had 

 occurred in this country for a much longer period than was 

 supposed. 



Mr. Billups said that this last observation was correct, 

 the species having been found as many as fifty years back, 

 being brought here from Russia. 



Dr. Rendall said that a farmer in Wiltshire, who was not 

 an Entomologist, informed him he had found it in his wheat 

 for a good many years. 



Mr. T. R. Billups exhibited, on behalf of Mr. T. D. A. 

 Cockerell, a box of insects collected at West Cliff, Custer Co., 

 Colorado, at an altitude of about 8,000 feet above sea level. 

 These included two species of Longicorn Beetles, Criocephalus 

 agrestis, F., and Leptura cribripennis, Lac, also several species 

 of Carabidse, Histeridae, Coccinellidae, etc. Among the 

 Hymenoptera were several species of Ants, including For- 

 mica Integra, F., and several other species not in the 

 National Collection. There were also two species of Ich- 

 neumonidse, one of Cerceridse, two of Mutillidse, and several 

 other species apparently new to science. Besides these there 

 were types of the local Diptera, Lepidoptera, Neuroptera, 

 etc. 



