NOTES ON THE DIPTERA OF LAGUNA BEACH 



F. R. COLE 



There were many flies ol>tained from tlie vcfietation l)aek from the beaeli 

 and from the great swarms of them about tlie kelp wliieh was strewn along 

 the shore. The sand is also a good eolleeting place for some species, and 

 some are found in wet places and even in tlie spray of the waves as they 

 dash over the rocks. There were countless thousands of the large and small 

 Pueellia. The larger species is often on the wet rocks, flying upwards as the 

 waves come rolling in, and settling back as the water subsides again. 



Figure 264. Neopogon sp. 



In the last report of the Laguua Marine Laboratory only a surface 

 study was made of the Dijitera and only a part of the collection was reported 

 on. Since that time a number of forms have been added to the list of 

 Diptera fi'om Laguna. There were two mistakes in the last rejjort. Accord- 

 ing to Aldrich, Prof. Iline made a mistake in determining the asilid sent him 

 as Stichopogon trifasciatiis Say. (Figure 264). 



This fly according to his classification is of the genus Xcapofjoii and an 

 undescribed species. Back, in his monograph, attributed frifasciatus to 

 Southern California: Williston did the same. This new species has upward 

 directed white pile around the margin of the scutellum. Hczzi has published 



