187 



ENTOMOLOGICAX, PEOGEAM. 



PRESIDENTIAL ADDRESS. 



Biological Notes on Hawaiian Diptera.* 



BY F. W. TERRY. 



(This was accompanied by exhibition of specimens.) 



Some Hitherto Unrecorded Non-Endemic Insects for the 

 Hawaiian Islands. 



BY OTTO H. SWEZEY. 



Pompilus sp. 



In October of this year I caught a specimen of a Pompilid 

 at the Experiment Station, H. S. P. A. grounds. Dr. Perkins 

 informs me that he had taken a specimen of this insect on his 

 office window the previous month. Later in the month Mr. 

 Terry caught a specimen on the road at Aiea. Diu-ing the 

 month of N"ovember I observed another specimen on a cane leaf 

 at the Experiment Station grounds, and Dr. Perkins spoke of 

 seeing an occasional one also. 



About noon on December 4, I was astonished at seeing 10 or a 

 dozen specimens in the grass on my own lawn at Kaimuki. The 

 next day I saw 3 or 4 all at once in the edge of a cane field of 

 the Honolulu Plantation. This was probably at the distance 

 of a mile from Aiea. December 11 I saw quite a number of 

 specimens in gi'assy places on I^iu Ridge at an elevation of 1000- 

 1200 feet. 



From these observations it is seen that this wasp is already 

 well established in this part of the Island of Oahu, and must 

 have increased very rapidly recently, not to have been observed 

 sooner by any entomologists. This is a member of the family 

 Pompilidae, hitherto not represented in the fauna of the Ha- 

 waiian Islands. The species is as yet undertermined. and it 



^Not available for publication. 



Proc. Haw. Ent. Soc, II, No. 4, April, 1912. 



