ECONOMIC ZOOLOGY ENTOMOLOGY, 259 



the later decisions as published elsewhere " are said to have been followed in 

 all cases. 



Mosquito extermination (Ann. Rpt. Bd. Health N. Y. City, 1 {1908), pp. 

 128-185, pis. 13, maps 8). — A report of the occurrence of mosquitoes and the 

 work being conducted against them around the city of New York. 



Culex pipiens, C. pungens and species of Anopheles and Psophora are those 

 commonly found in inland deposits of fresh water around New York City. The 

 so-called "striped legged" mosquito (C. solUcitans), which breeds exclusively 

 in salt marshes, is said to constitute three-fourths of the mosquitoes found on 

 Staten Island. During the period from April 1, 1908, to January 1, 1909, 

 $440.90 were spent by the city and $17,051.96 by property owners in digging 

 trenches to remove standing water, a total of 39,284.37 cu. yds. of material 

 being removed. 



The Coleoptera or beetles of Indiana, W. S. Blatchley (Ind, Dept. Geol. 

 and Nat. Resources Bui. 1, pp. 1386, figs. 590, map 1; rev. in Science, n. ser., 32 

 (1910), No. 832, pp. 838-8JfO).— In this work the author describes 2,535 species 

 of beetles, exclusive of the Rhynchophora, that are known to have been taken 

 in Indiana and in addition 777 that have a known range which renders it 

 probable that they may also occur within the State. Tables for the separation 

 of genera and species are included. 



The review is by F. Knab. 



Preliminary studies on the biology of the bedbug, Cimex lectularius. 

 I. The effect of quantitatively controlled food supply on development, A. A. 

 GiKAULT (Jour. Econ. Biol., 5 (1910), No. 3, pp. 88-91). — In "this paper the 

 author reports in tabular form the results of a study made to show how an 

 approximately quantitatively controlled food supply affects the development of 

 C. lectularius. 



Four individuals (3 females and 1 male) which were given an optimum and 

 normal food supply, all passed 5 ecdyses; they averaged 8.75 meals, and re- 

 quired an average of 69.9 days for the completion of their life cycles. One 

 female from a lot of 5 individuals (2 males, 2 females and one not stated), 

 whose food supply was below the optimum, and thus abnormal, molted a sixth 

 time; the average number of meals for the lot was 18.75, the average duration 

 of the life cycle being 139.09 days. In a third lot of 2 males with an optimum 

 food supply 5 molts were passed, both engorging 5 times and requiring approxi- 

 mately 70 days for their cycle of development. One of 2 males that were given 

 a half or below optimum food supply passed a sixth molt; both fed 9 times, 1 

 requiring nearly 118 days and the other 116 days for the completion of their 

 development. It thus appears that the reduced quantity of food did not affect 

 reproduction or sex, but lengthened the cycle indefinitely, reduced their size, 

 and increased the average number of ecdyses. 



The Coccidae of Ceylon, E. E. Green (London, 1909, pt. //, pp. 251-3.'/'/, pis. 

 39).— This fourth part of the work previously noted (E. S. R., 15, p. 880) 

 includes descriptions of new species representing the following genera of the 

 subfamilies Lecaniinaj and Asterolecaniiniie : Neolecanium (1), Protopulvinaria 

 (1), Ceronema (1), Pulvinaria (3), Inglisia (1), Ceroplastodes (2), Aclerda 

 (1), Lecaniodiaspis (2), Cerococcus (3), Asterolecanium (11), and Pollinia (1). 



Filariae in Ixodes, V. Baldasseroni (Bui. Soc. Ent. ItaL, J/0 (1909), pp. 

 171-17J/; ahs. in Jour. Roy. Micros. Soc. [London], 1910, No. 3, p. 3i7).— The 

 author reports a case in which the embryos of Filaria quadrispina occurred in 

 the intestines of Ixodes ricinus taken from the beech marten (Mustela foina). 

 It is said that there were also many filarise beneath the skin of the marten. 



o Science, n. ser., 30 (1909). No. 774, p. 603. 



