49 



west. A. cataphylla, Dyar, is a very characteristic species of the 

 locahty, being the second earhest species to appear on the wing. 

 A. varipalpus, Coq., breeds in water in holes in trees, generally in oaks, 

 but also in alders, willows and sycamores. The species extends 

 throughout California, both along the coast and in the mountains 

 as far as Washington and British Columbia. A. ventrovittis, Dyar, 

 is a very early species, being the first of those found in snow pools. 

 The males and larvae are unknown. A. Jisheri, sp. n., is similar to 

 the last in size, but is late in occurrence, the male being unknown. 

 CuUseta inornatus, Willis., is typical of the low country and occurs 

 only sparingly in the mountains. It has been found breeding in 

 muddy pools in cattle pasture. C. incidens, Thomson, is very common 

 everywhere in the west, both in the plains and mountains ; it breeds 

 in any enclosed water all the summer, having been found in August 

 in an ice-cold mountain spring, where the larvae were preyed upon 

 by those of Eucoretlira. C. impatiens, Walk., has a northern distribu- 

 tion from Alaska eastward to the mountains of northern New York, 

 but has not previously been recorded from California. The larvae 

 inhabit cold spring pools and can be found all the summer, the adults 

 hibernating. Cidex tarsaUs, Coq., is an abundant species throughout 

 the west, especially in the lowlands, breeding in all kinds of permanent 

 and semipermanepit pools, and adapting itself readily to irrigation 

 water. It occurs throughout the mountains in open warmer pools. 

 The adults are supposed to hibernate. C. saxatiiis, Grossbeck {terri- 

 tans, auct., non Walk.) is a species well known on the Sierras, where 

 the larvae have been collected in grassy pools. 



Butler (C. S.) & Hakansson (E. G.). Some flrst Impressions of the 

 Virgin Islands, medical, surgical and epidemiological. — U. S. Naval 



Med. Bull., Washington, D.C., xi, no. i, October 1917, pp. 465- 

 475, 9 plates. 



Stegomyia, which is the common house-infesting mosquito in the 

 recently acquired United States portion of the Virgin Islands, breeds 

 preferably in rain-water and is common in cisterns but rare in wells, 

 even though these be shallow and open at all times. The authors 

 suggest as a possible explanation of this that the eggs may be laid 

 after rain in the water-holding depressions in the house-gutters. They 

 stand drought well and later rains may wash them into the cisterns 

 where they hatch. If correct, this would complicate the question 

 of rendering the cisterns mosquito-proof. 



PiTTALUGA (G.) & DE BuEN (S.). Nota sobie los Dipteros del G6enro 



Phlebotomus en Espana. [A Note on the Phlebotomus found in 

 Spain.] — Bol. Inst. Nacional Hyg. Alfonso XIII. Madrid, xiii, 

 no. 50, 30th June 1917, pp. 137-145, 3 plates. 



The authors have found Phlebotomus papatasii and P. legeri in 

 Spanish Guinea, Palma de Mallorca and Malaga, and P. minutus in 

 Grenada, Palma de Mallorca and Malaga. A brief description of these 

 three species is given. Dengue occurs in Spain and possibly sandfly 

 fever. Oriental sore is known to be present, and the gecko, Tarentola 

 (Platydactylus) mauritanica, the supposed reservoir, is distributed 

 nearly throughout the Peninsula. 



