ECONOMIC ZOOLOGY ENTOMOLOGY. 253 



6 dnys; larval stnge, 15 to 24 days (one record 17 days, another, in wbich the 

 larval period was protracted by reduction of food, 61 days) ; pupal stage, 1 to 

 4 days (mostly 2 days). Three rearings of A. calopus, including many Indi- 

 viduals, showed the egg stage to require 4 days; the larval stage, 17 days; and 

 the pupal stage. 2 to 3 days for development. 



Cultural methods for the control of the pink bollworm (Gclcchia gnssypielhi) 

 have not given the favorable results expected. A bethylid, thought to be 

 {Goniosiis) Parasiorola cellularis, has been found to parasitize the larvse of 

 this insect, the egg stage requiring 1 day, the larva 7 days, and the pupa 11 

 days for development. The ichneumonid Pristomerus han-aiiensis, previously 

 reported from the sweet potato stem borer {Oniphisa anastnmosalis), and a 

 chalcidid, probably belonging to the genus Hockeria, were also reared by the 

 author from this pest. 



The author gives a brief account of the life history of the 2 species of 

 weevils, Bruchus prosopis and Caryotorus ffonagra, both introduced pests, which 

 attack the kiawe bean (Prosopis juliflora) in Hawaii. The introduction of the 

 parasite Heterospilns prosopidis of bean weevils from Texas was made but 

 apparently it has failed to become established. A minute parasite, described 

 as Uscana sfmifumipennis, which attacks the eggs of bean weevils was also 

 introduced and has become established, and proves a most valuable check to 

 the multiplication of the weevils. An examination recently made shows over 

 2.5 per cent of the eggs to be parasitized by this species, which has now become 

 rather generally distributed. 



Two new genera and 3 new species of parasites of scale insects are charac- 

 terized for the first time, namely, Apentelicus Jcotinskyi, reared fi'om Lepi- 

 (losaphes sp., at Honolulu; Adelencyrtus odonaspidis, reared from specimens 

 from Odonaspis graminis; and Pteroptriclioides perkinsi, reared from a new 

 genus and species of coccid on Bombay mango at Honolulu. 



Lists are given of parasites of Coccidfe and their hosts and of the hosts and 

 their parasites. Bi'ief notes are given on the life histoiy of several species of 

 Coccinellidfe, namely, Coelophora ineqnaUs, C. pnpil'ata, Platyomus Uvidigastcr, 

 and Scymnus notesccns. The egg state of G. pupillata requires from 3 to 4 days, 

 the larval stage from 15 to 21 days, and the pupal stage 7 days for development. 

 The egg stage of P. lividigaster requires from 3 to 4 days, the larval stage 7 

 days, and the pupal stage from 5 to 6 days. The egg stage of 8. notescens 

 requires from 1 to 2 days, the larval stage 10 days, and the pupal stage 5 days. 



Brief notes are also presented on the Mediterranean fruit fly. 



Some external insect parasites of domestic fowls, G. W. Heerick {Jour. 

 Econ. Ent., 6 (1913), A'o. ./. pp. 81-8^). — Following a brief discupsiou the author 

 presents a list of Mallophaga occurring on domestic fowls. 



Further data on heat as a means of controlling' mill insects, G. A. Dean 

 (Jour. Econ. Ent., 6 (1913), No. 1, pp. 40-.5.5).— This report of work conducted 

 in continuation of that previously noted (E. S. R.. 25, p. 758) presents a brief 

 summary of the successful heating of a few mills, discusses the amount of 

 radiation required, some veiy important point? to be considered in the success- 

 ful heating of a mill, and the elfect of heat fumigation upon flour. Tempera- 

 ture records and other data obtained of mills that have used heat successfully 

 are appended to the account. 



Zinc arsenite as an insecticide, W. J. Schoene (New York State 8ta. Tech. 

 Bill. 28, pp. 3-16). — The author here reports upon a series of laboratory and 

 field experiments with zinc arsenite and lead arsenate to determine their rela- 

 tive toxicity to insects and the safeness of zinc arsenite for use on foliage. 



" One lb. of zinc arsenite proved equal in effectiveness to 3 lbs. of lead 

 arsenate. Zinc arsenite when added to calcium hydrate or Bordeaux mixture 



