ECONOMIC ZOOLOGY ENTOMOLOGY. 763 



[A dipterous parasite of an earthworm], D. Keilin {Compt. Rend. Soc. 

 Biol. [I'ari.s]. Cu {W09), No. 26, pi). 21)1-203 ; ubs. in Jour. Roy. Micros. Soc. 

 [London], 1909, No. 6, p. 716). — The occurreuce of the hirvjc of PoUcnia rudis, a 

 comiiion fly, in the body cavitj' of an earthworm {AUolobopJiora chlorotica) is 

 here discussed. 



Trypetid galls and Eurosta elsa n. sp., E. Daecke (Ent. News, 21 (1910), 

 No. S, pp. '3Jfl-3Ji3, pi. 1). — A new trypetid which forms galls on the roots of 

 Solidago juncca, at Richmond Hill, Long Island, is described as Eurosta elsa. 

 The occurrence of a gall formed by E. comma on the root of S. rugosa at 

 Lucaston, N. J., is also noted. 



Some notes on the distribution of Glossina palpalis, S. A. Neave {Jour. 

 Econ. Biol., J, {1909), No. If, pp. 109-113, map 1). — This account is accompanied 

 by a sketch map of northern Rhodesia and the adjoining country, which shows 

 the known limits of the distribution of G. palpalis. 



The rat fleas (Ceratophyllus fasciatus and Ctenopsylla musculi) attack 

 man, J. C. Gauthier and A. Raydaud (Compt. Rend. Soc. Biol. [Paris], 68 

 (1910), No. 19, pp. OJfl, 942). — ^A continuation of the studies previously noted 

 (E. S. B.., 23. p. 261). 



Prolonged conservation of the plague bacillus in fleas (Ceratophyllus 

 fasciatus) during hibernation, J. C. Gauthier and A. Raybaud (Compt. Rend. 

 Soc. Biol. [Paris], 68 (1910), No. 19, pp. 942-9.^//).— The plague bacillus from 

 rats was found to remain virulent in C. fasciatus for at least 45 days after 

 imbibition when the fleas were kept at a temperature of from to 5° C. 



Species of fleas found on rats at Marseille, J. C. Gauthier and A. Ray- 

 baud (Compt. Rend. Soc. Biol. [Paris], 68 (1910), No. 4, pp. 196-199) .—An ac- 

 count is given of the frequence by months from August, 1908, to December, 1909, 

 of the species collected from Mus rattus, M. alexandrinus, and M. decumanus. 



Of 2,2TG fleas collected from M. rattus and M. alexandrinus on vessels, 2,110 

 were Pulex cheopis, 152 were Ceratophyllus fasciatus, 12 were Ctenopsylla 

 musculi, and 2 were Ctenocephalus serraticeps. Of 2,424 fleas collected from 

 M. decumanus on the wharves 1,250 were C. fasciatus, 800 were P. cheopis, 247 

 were C. musculi, and 127 were C. serraticeps. Of 4,377 fleas taken from M. 

 decumanus in the city, 2,210 were P. cheopis, 1,538 were C. fasciatus, 347 were 

 C musculi, and 282 were C. serraticeps. Pulex irritans was not met with in 

 the collection from these rodents. 



Monthly collections of P. cheopis from 1906 to 1909, here reported in tabular 

 form, show this flea to be most numerous during August, September, and 

 October. These are stated to be the months of the year in which the plague 

 has been most prevalent where it has occurred in temperate regions of the 

 northern hemisphere. 



Fleas collected from squirrels from various parts of California, G. W. 

 McCoY' and M. B. Mitzmain (Pub. Health and Mar. Hosp. Serv. U. S., Pub. 

 Health Rpts., 25 (1910), No. 22, pp. 737, 738).— The author reports the collection 

 of Argopsylla gallinacea from the California ground squirrel for the first time. 

 The species was found on several squirrels in great numbers, always on the head, 

 especially in the region of the mouth and eyes. Ctenopsyllus musculi, the blind 

 flea of the mouse and rat, was found upon the ground squirrel for the first time 

 in natui-e. Ceratophyllus acutus, a species capable of transferring the plague 

 from one squirrel to another, is stated to predominate on squirrels from every 

 county. 



The life history of Callidium violaceum, J. W. Siioehotham (Jour. Econ. 

 Biol., .', (1909), No. //, pp. n '1-123, figs. 12). — This ceriinibycid i.s said to bore in 

 wooden fences in the neighborhood of Berkhamsfed and to be Ihe source of 

 considerable damage. 



