64 



disease, of the parasite, Theileria parva, causing it, and of the brown 

 tick, Rhipicephalus appendiculatus, which is the chief transmitting 

 agent [R.A.E., B, viii, 129, &c.]. The conditions necessary for the 

 spread of the disease are discussed and it is pointed out that it can 

 only be eliminated by making transmission by ticks impossible, or 

 by rendering the cattle immune. The importance of controlling move- 

 ments of cattle and of dipping and hand dressing are explained 

 [R.A.E., B, ix, 83-85]. The risks of inoculation as a preventive 

 are discussed ; this method is considered useless, and is said to lead 

 to wholesale infection of the transmitting ticks and perpetuation of 

 the disease. 



Hearle (E). The Importance of Mosquitoes, with Notes on some 

 British Columbia Species. — Proc. Entom. Soc. Brit. Columbia, 

 Victoria, Econ. Series, nos. 13 and 15, June 1921, pp. 132-135, 

 2 plates. [Received 12th January 1922.] 



In British Columbia mosquitos are one of the chief economic factors 

 and seriously affect agriculture. A list is given of those taken during 

 a preliminary survey of the Lower Eraser valley, including Anopheles 

 ptmctipennis. Say, and A. macidipennis occidentalis, D. & K. 



RoDENWALDT (E.). Dc Pilotaxic van Anophehnen uit Nederlandsch 

 Oost-Indie. [The Pilotaxy of Anophelines from the Dutch 

 East Indies.] — Tijdschr. Ent., The Hague, Ixiv, no. 3-4, 31st 

 December 1921, pp. 147-160, 1 fig. 



This study of the pilotaxy of Dutch East Indian Anophelines as 

 a means for differentiating the species is limited to certain parts of 

 the body, especially the sides of the thorax, chiefly because only dried 

 specimens were available. 



RuscHKAMP (P. F.). Zur Biologic der Leptinidae. Ins. Coleopt. 



Leptinus testaceus, Miill, der „ Mausefloh." [On the Biology of 

 the Leptinidae. L. testaceus, the " Mouse flea."] — Tijdschr. 

 Ent., The Hague, Ixiv, no. 3-4, 31st December 1921, pp. 161-174. 



The author considers that the occurrence of Leptinus testaceus in 

 the fur of small mammals is a case of ectoparasitism, instances of 

 which are very rare in Coleoptera. 



Herms (W. B.). Distributional and Ecological Notes on Anopheline 



Mosquitoes in California. — J I. Econ. Ent., Geneva, N. Y., xiv, 

 no. 5, October 1921, pp. 410-414. [Received 13th January 1922.] 



A detailed study of the distribution of Anophelines over a large 

 area such as California, which comprises 153,650 sq. miles, is extremely 

 difficult, but an attempt has been made in which 18,000 miles were 

 covered at elevations ranging from about 200 ft. below sea-level to 

 about 10,000 ft. above it. Although it was intended to be a malaria- 

 mosquito survey, all available mosquitos were included in every 

 collection in order to ascertain the relative abundance of Anophelines 

 in any one locality. In all, 6,650 mosquitos were collected, including 

 Anopheles quadrimaculatus occidentalis, D. & K., A. ptmctipennis. 

 Say, and A. pseudopunctipennis, Theo. 



All three species are partial to the collections of Spirogyra, which 

 provide a shelter against certain natural enemies. A . quadrimaculatus 



