150 first Annual Report 
SOME DIPTERA OF LAGUNA BEACH 
F. R. COLE 
Laguna Beach is an excellent collecting ground for Diptera. The 
hills and inland vegetation extend almost to the ocean in many places, 
and with the varied topography and conditions, the insects are very 
varied. The beach with its rocks, sand stretches, beach plants, and 
decaying wrack, is swarming with Diptera; A small, shallow brack- 
ish water lagoon at the inner edge of the beach gave some interesting 
results in Diptera, but Diptera were collected on the rocks even to 
within reach of the salt spray. 
The collection of this year is but a mere beginning. I spent only 
a few weeks at Laguna, and a large part of this time was consumed 
in anatomical studies. Most of the flies reported in the present 
paper are either peculiar to the beach itself, or are found in the 
varied vegetation of the upper beach. 
Without extensive assistance from Prof. J. M. Aldrich of the 
University of Idaho, it would have been impossible to present this 
paper at this time. Messrs. Knab and Hine have also kindly made 
determinations. The accompanying habit sketches of new species 
will be amplified by drawings of anatomical details, during the com- 
ing summer. 
Figure 85. Scatopse californiana n. sp. 
CULICIDAE 
Aedes squamiger Coq. 
This mosquito was common and occasionally annoying at Laguna, 
breeding in great numbers in the small brackish water lagoon. De- 
termination by Mr. Knab. 
