OF WASHINGTON. 61 



chusetts Laboratory for the introduction and acclimatization 

 of the European parasites of the gipsy moth and the brown- 

 tail moth. 



Mr. Barber exhibited specimens of the larvae, pupae, adults, 

 and work of a ptinid beetle, Dorcatoma dresdensis Herbst, 

 which he reared from fungi, principally Elfvingia fomentaria, 

 collected in Wisconsin. The other species of Dorcatoma 

 are supposed to breed in rotten wood. He also exhibited a 

 braconid parasite of the Dorcatoma and some photographs of 

 the various stages of the work. Mr. Schwarz said that now 

 was the time to do some fine work rearing fungus insects. 

 Early entomologists could not get fungi named, so many 

 valuable records were lost. Now, with so many mycologists 

 in the field, it should be an easy matter. Most of the insects 

 will probably be found to infest but a single host. 



Mr. Schwarz exhibited a specimen of the cerambycid 

 beetle, Adetus subellipticus Bates, which was reared by Mr. 

 Barber and himself from an apparently cucurbitaceous vine 

 at Panzos, Guatemala. This vine appeared to be in perfect 

 health when collected, and apparently was not injured by the 

 insect. He mentioned another instance where a cerambycid 

 develops in a green soft vine without apparently doing any 

 harm, Mr. D. L. Van Dine, of Honolulu, having sent in to 

 the Bureau of Entomology for determination numerous speci- 

 mens of an allied cerambycid, Apomccyna pcrtigera Thomp- 

 son, the larva of which infests the growing vines of water- 

 melons in the Hawaiian Islands. In both cases the vines 

 showed no outward sign of infestation. At Honolulu the 

 melons ripened on the infested vines without showing any 

 deterioration. 



The secretary read the following note, secured through 

 Mr. Busck: 



MOSQUITOES DESTROYED BY THE NIGHTHAWK. 



By ALLAN H. JENNINGS, Ancon, Canal Zone, Panama. 



In May, 1887, while collecting on the island of New Provi- 

 dence, Bahamas, I had an opportunity of observing the mo- 

 squito-eating habit of the Cuban nighthawk. 



