156 JFirgt annual deport 



TACHINIDAE 



Clausicella setigera Thorn. 



Plagiprospherysa parvipalis V. d. W. 



Senotainia trilineata V. d. W. 



Goniochaeta plagioides Twos. 



Aldrich says of this: "New to me, and one of the few that 

 Coquillet did not include in his Revision. This is a big find." Town- 

 send described this from Las Cruces, N. M. 



MUSCIDAE 



Chrysemyia nigripes \\ heeler 



Pseudopyrellia cornicina Fab. 



Myiospila meditabunda Fab. 



Muscina stabulans Fall. 

 The above four flies were very common. 



ANTHOMYIDAE 



Hylemyia alcathoe \Ylk. 

 Pegomyia affinis Stein 



Caricea nana Zett. 

 The above three flies are common in vegetation back of beach. 



Fucellia costalis Stein 



This species is quite common on decaying kelp. They are large, 

 quick flies. They seem to be at least partially predaceous in habit, 

 as I have seen them pounce upon weakened sand-hoppers and by 

 their numbers soon overcome them. 



Fucellia rufitibia Stein 



(Figure 89) 



There are myriads of this fly swarming over the decaying kelp. 

 They are found with F. coxttilis, which, however, they vastly out- 

 number. They are slow of flight and easy to catch. 



PHYCODROMIDAE 



Coelops frigida Fall. 

 Common on decaying kelp. 



SAPROMYZIDAE 

 Sapromyza flaveola Coq. 

 Abundant in vegetation near beach. 



Sapromyza fraterna Lw. 

 Occasional with the last species. 



