91 



IT) minutes. From this ootheca a $ parasite emerged Sept. 

 29th. The period thus occupied from oviposition to the adult 

 being 40 days. 



CIIALCIDIDAE. 



The little chalcid, Tetrasticlius Jtagenowii Ratzeb., was also 

 common in Blattid ootheca?. 



COLEOPTEKA. 

 MELOLONTHIDAE. 



Adoretus umhrosiis Waterh. A few specimens of this beetle 

 were collected lioth at Hong Kong and ^Macao, but it was far 

 from common, and is probably controlled by parasites or preda- 

 tors. 



ELATEKIDAE. 



MelanoxanfJms melanocephalus Thunb., fairly common 

 aroimd Hong Kong. 



DiPTERA. 

 SYEPHIDAE. 



Erisfalis ienax L. and E. punctulatus Macq. both common 

 around Hong Kong and Kowloon, the latter species also from 

 Macao. 



Eumerus marginatus Grims., not collected by me, but a 2 was 

 taken by Mr. F. Muir at Howlik, South China, 1907. Also a $ 

 collected by him at Amboina, Moluccas, May, 1909. These rec- 

 ords are interesting, since the species was originally described 

 by Grimshaw from specimens collected by Dr. Perkins in Hono- 

 lulu, 1900.* At the time, however, Mr, Grimshaw expressed 

 doubt as to the endemic claims of this syrphid. 



MrSCID.'VE. 



As one might expect, Musca domef<tica Linn, and Stomoxys 

 calcitrans Linn, were abundant. Lucilia dux Esch.** was also 

 common, both at Macao and Hong Kong, in dead animal matter 



* Fauna Hawaiiensis III, pt. 1, p. 82. 

 ** Specimens identified as this species, I suspect to belong to the 

 genus Pycnomma. 



