July 1S93. ] 



PSYCHE. 



283 



THE LEPTIDAE AND BOMBYLIDAE OF THE WHITE MOUNTAINS. 



BY LEWIS E. HOOD, SOMERVILLE, MASS. 



But few local lists of the Diptera 

 have been published and until this or- 

 der has been placed upon a higher 

 basis by monographic study anything 

 seems useful that will contribute to our 

 knowledge of the geographical distri- 

 bution of this neglected group of in- 

 sects. 



I have considerable material from the 

 mountains of central New Hampshire 

 and a list of the Leptidae and Bomby- 

 lidae are given below ; good series of 

 several other families are in my posses- 

 sion especially in the Tabanidae, Asili- 

 dae, Empidae, and Trypetidae which I 

 shall work up as time allows. 



What knowledge I have of the dip- 

 terous fauna of the White Mt. region 

 has been gained by the study of the 

 insects collected during two trips be- 

 tween the years 1883 and 1887, and 

 from several small lots of flies obtained 

 from friends by exchange ; supplemen- 

 tary to these personal collections I have 

 had free access, through the kindness 

 of Dr. H. A. Hagen, to the rich collec- 

 tions of Dr. H. Loew and Baron C. R. 

 Osten Sacken in the Museum of com- 

 parative zoology in Cambridge, Mass., 

 thereby not only being able to deter- 

 mine my species by direct comparison 

 but becoming familiar with their series 

 of New England Diptera. 



There is a marked similarity be- 

 tween the dipterous fauna of the south- 

 ern portion of the White Mountains, 



and that of eastern Massachusetts, but 

 the species obtained north of Mount 

 Washington seem to be more local, 

 with many that are common in Canada ; 

 the material from the mountain region 

 is far too incomplete to warrant any 

 definite conclusions as to distribution 

 but I add to the list a few notes that 

 have some bearing on this subject. 



At no place did I find the Leptidae 

 numerous, while certain species of 

 Bombylidae were well represented by 

 specimens; many are limited in their 

 distribution with only one or two that 

 could be considered cosmopolitan. 



Most of my specimens were collected 

 at North Conway, Bemis, Upper Bart- 

 lett, Glen Station, Mt. Washington, and 

 the region around Jefferson. 



Family Leptidae. 



Triptotricha riifithorax Say. Up- 

 per Bartlett ; before only recorded from 

 N. Y. westward. 



Chrysopila fasciata Say. North 

 Conway, also at Hollis, N. H. 



Chrysopila quadrata Say. North 

 Conway, Bemis, N. H., eastern Massa- 

 chusetts and throughout New England. 



Chrysopila thoracica Fab. One 

 specimen from near Mt. Lincoln ; I am 

 not certain of exact locality, and have 

 specimens from Massachusetts and 

 Maine. 



Leptls hirta Loew. A specimen 

 from the western part of the state 



