280 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. & 



a 



Cecidomyia peritomatis n. sp. 



Gall. A more or less claviform, variously enlarged pod of Cleome serrulata = Peritoma 

 serrulatum. Frequently the pod is deeply constricted subapically. The larvae live 

 in great quantities within or among the seeds. 



Larva. Orange, rather slender, 2.5-2.75 mm. long; antennae conical, acorn-like; 

 mandibles very robust; breastbone with the head about twice as broad as the stem, 

 obtusely bilobed, the median emargination variable, but never very deep, no lateral 

 projections; pseudopods of posterior extremity like the end of a finger, obtuse; 

 bristles of caudal tubercles very short. 



Hab. Santa Fe, New Mexico, by Santa Fe River, Aug. 1912. {Cockcrell). The 

 breastbone may be compared with that of Thurauia aquatica Ruebs. (Wien. Ent. 

 Zeit., xviii, taf. I. f. 1.), but it differs in having the head much less abruptly enlarged, 

 and the lobes much rounder and less elongate, the median emargination consequently 

 much more shallow. 



CONFERENCE OF FOREST ENTOMOLOGISTS 



At the conference of investigators and specialists of the Branch of Forest Insects 

 of the Bureau of Entomology, U. S. Department of Agriculture, held at Washington, 

 D. C., P'ebruary 26 to March 1, the following subjects were discussed: methods of 

 conducting investigations in the field and laboratories; methods of dis.seminating 

 information based on the results of investigations, including popular and technical 

 publications, correspondence, etc.; field demonstrations and instructions in the 

 practical details of controlling and preventing depredations by tree-killing and wood- 

 destroying insects; methods of promoting the science and practice of forest entomol- 

 ogy; the services already rendered by the Branch of Forest Insects, the services to- 

 be rendered in the future, and the relation of the Branch to other branches of the 

 public service and to private interests. 



In the discussion of results so far attained it was shown that information on the 

 habits and life history of the Dendroctonus beetles (a group of the most destructive 

 insect enemies of living timber of North America) has been determined and that the 

 practicabiUty of the methods recommended for their control and the prevention of 

 their ravages has been proven by a large number of successful demonstrations con- 

 ducted during the past six years in cooperation with private owners, the Forest 

 Service, and the Department of the Interior. It was also shown that the published 

 information on the relation of insects to North American forests covers a wide field, 

 both in the line of general information on the entire subject and specific information 

 on the more important insects and problems. It was estimated that a general appli- 

 cation of the information already determined and disseminated would save tens of 

 millions of dollars annually to national and private interests in the prevention of 

 waste of forest resources and manufactured crude and finished forest products. It 

 was also shown that the results of original investigations, as published in the techni- 

 cal series of bulletins of the Bureau, have secured for the Branch of Forest Insects 

 favorable recognition and comment among entomologists of this and other countries. 

 In the discussion of the interest manifested it was stated that twenty years ago there 

 was practically no interest in the subject and the idea of any practical means of con- 

 trolling the depredations of insects in North American forests was not only foreign 

 to the thoughts of foresters and private owners but any suggestion of such a thing; 

 was ridiculed. At present there are probably no forest officials who do not know 

 something about the importance of forest insects and the need of protection from 



