258 EXPERIMENT STATION RECORD. [Vol.41 



commonly in the buds at the head of the crowns of strawberry, and Aristotelia 

 fragarke, the so-called strawberry crown borer, both taken at Victoria, B. C, 

 are described as new. 



On some generic synonymy in the family Gelechiidse, A. BuscK (Proc. 

 Ent. Soc. Wash., 21 (JDl'J), So. 4, pp. 9-'i-9G). — Attention is called to the fact 

 that Peetiuophora Busck may prove to bo a synonym of Platyedra Meyrick 

 erected in ISOo. 



Descriptions of new species of Coleophora, A. F. Braun {Ent. Neics, 30 

 {191'J), Nos. 4, pp. 108-112; 5, pp. 127-131). — Among the species of Coleophora 

 reared by the author at Cincinnati, Ohio, and here described are C. apicella 

 n. sp., the larval cases of which are found on the lower side of the rosette 

 leaves of the fire pink {Silene virginica) ; C. polemoniclla n. sp., the larvae of 

 which feed on the lower side of leaves of Greek valerian (Polemonium 

 reptans) ; C. ericoides n. sp., the larvae of which mine the seeds and receptacle 

 of a wild white aster {Aslcr ericoides); C. amaranthella n. sp., reared from 

 larvfe eating out of the seeds of pigweed {Amuranthus hybridus; and C. grani- 

 fera n. sp., the cases of which are found on the underside of leaves of Aster 

 sliortii. 



Notes on the California oak worm, Phryganidia californica, H. E. BtTRKE 

 {Proc. Ent. Soc. llV/.s-Zi.. 21 (1919). Ko. 6, pp. 12-',. 125). 



Nicotin sulphate solution as a control for the chrysanthemum gall midge, 

 Diarthronomyia hypogaea, T. L. Guyton {Jour. Evon. Ent., 12 {1919), A'o. 2, 

 pp. 162-165, pi. 1). — The author concludes that D. hypogw can be successfully 

 controlled at the time of the emergence of the adult by spraying with a solution 

 of one volume of nicotin sulphate containing 40 per cent nicotin to 500 volumes 

 of water, to which fish-oil soap has been added at the rate of 1 oz. to each gal- 

 lon of solution. The plants must be completely covered with the spray solu- 

 tion, and since all adults do not emerge at the same time the treatment must be 

 repeated every four or five days as long as any living forms of the midge re- 

 main in the galls. 



Observations on and experiments with Cuterebra tenebrosa, II. R. Parker 

 and R. W. Welxs {Jour. Parasitology, 5 {1919), No. 3, pp. 100-104, pi. 1).— 

 This is a report of observations and experiments conducted in Powder River 

 Valley, Mont., in 1910 on the rodent botfly {C. tenebrosa) during the course of 

 investigations of the Rocky INIountain spotted fever tick. 



Under natural conditions the larvae of tliis oesti-id parasite were found infest- 

 ing pack rats and grasshopper mice. Prairie dogs were infested under labora- 

 tory conditions, ))ut negative results were secured with Belgian hares and 13- 

 striped ground squirrels. 



"A female deposited ISO eggs within a period of several days. These eggs 

 contained active larvae Avhich were still alive after six months in the laboratory. 

 By mechanically transferring larvae from eggs to the mouths of prairie dogs 

 infestation was siM-mcd. In three experiments with these animals (experiment 

 2 excluded because the host was killed) 20 larvae were used, of which 11 

 reached the subculanoous tissue, 5 died in this situation, and G emerged as 

 fully matured larva\ (One of those was dissected out just as it was com- 

 pleting the last molt.) Evidence that the larva> had reached tlie subcutaneous 

 tissue was found on the twelfth day in two instances, and within maximum 

 limits of 9 and 10 days in two other experiments. 



"The length of time elapsing after the first apparent evidence of larvae 

 under the skin and before the skin was punctured was about 2 days. The period 

 spent in the subcutaneous tissue was 17, 2.5, 26, and 27 days in the several cases 

 observed. The total period from infestation to the emergence of the fully de- 



