429 



largest at base, curved dorsad, many small spines jiointing hasad, start- 

 ing from an apico-dorsal position antl crossing o\'er the sides to a ventro- 

 basal point. 



Length 1.5 mm. ; tegmen .7 mm. 



Hal). Fort de Fraiicc, ^Mai'tiuicinc, li. \\'. I., June 27, 

 1911. Described from two male speciinoiis, tlic tvpc in tlic 

 American Mns. of Nat. Hist., ISTew York, 



The Australian Sheep Fly in Hawaii. 



BY J. F. ILLlNCiWOKTlI, Ql'KKX SLAX 1), At'STlfALIA. 



[Presented by O. H. Swezey.] 



I Avas snrpri.sed to learn that the screw-worm tly that I 

 bred in snch abnndance from dead eat and rat, before leaving 

 Hawaii, is the common sheep-fly of Australia. Frog-gatt* calls 

 it Calllphora ruflfacies. but it shonld be placed in the genus 

 Chvysomyia. 



I collected this species in Fiji in 1913 ; and found it very 

 abundant in Brisbane, during Juue of this year. At the pres- 

 ent time (August, 1917) I am breeding these flies abundautly 

 from dead animals at Gordonvale. This species was bred by 

 Terry in Hawaii, in 1905, and four of his specimens are in 

 the collection of the Experiment Station, II. S. P. A., but bear 

 uo name, 



I The species is of tremendous importance in Attstralia, 

 where it has taken to living sheep, after breeding for many 

 years in the dead carcasses — just as our Chrysomyia dux did 

 in Hawaii. 



The development of the species is very rapid as my Hawaii- 

 an notes would indicate. An animal exposed on the 16th of 

 July; larvae hatching on the morning of the 17th and fully 

 developed on the 20th ready to enter soil ; pupal stage about 

 (! da vs. 



* X. S. W. Dept. Agric. Farmer's Bui. 95. illustrated, page 31. 

 Agr. Gaz. X. S. W., XXV. p. 756, I9T4- 



Proc. Haw. Ent. Soc, TIT, Xo. 5, April, 1918. 



