34 PSYCHE [April 



less impressed, although more so than in Wheeleri Mel.: front tibiae with a suffused 

 broad dark band. 



The females of kansensis and trinotatus and markedly alike, but the males 

 are entirely different. Dr. Adams suggested in a letter the possibility of a species 

 with dimorphic males, but a close study reveals characters by which the females 

 can be recognized, which indicates that there are two distinct species. The 

 differences in the extent of the color markings of the abdomen and legs are 

 not of value in separating these species. The characteristic differences between 

 the two species may be stated thus : 



Nemotelus kansensis Adams. 



Female: 5.5 mm. Rostellum projecting beyond the eye more than the 

 horizontal diameter of the eye : proboscis geniculate a little before the middle. 



Nemotelus trinotatus Melander. 



Female : Length 4.5 mm. Rostellum projecting not more than the diameter 

 of the eye : proboscis geniculate at the middle. 



The male of kansetisis is at once distinguished from all the other species by 

 the single conspicuous black fiscia on the fifth abdominal segment. Slossonae 

 Johnson and flavicornis Johnson, the only other species with a black fascia so 

 placed, are of small size and have the fourth segment also blackened. Moreover 

 in these species the third vein is simple. 



A Dipterous Parasite of the Box Turtle. — In Psyche, Vol. V, page 403, 

 Dr. Wm. M. Wheeler mentions several cases of finding larvae of dipterous flies of 

 the genus Sarcophoga in tumors in the skin of the Box Turtle. On July 28, 1902, 

 I found another case of the same kind at Cold Spring Harbor, Long Island, N. Y., 

 near the biological laboratory. The turtle had a swelling about an inch in diameter 

 on the left side of the neck with a small opening directed forward that was usually 

 nearly closed but could be easily stretched to quarter of an inch in diameter. 

 Five larvae were taken out through this opening with forceps, one dead and partly 

 decayed, the others alive and full grown. Placed in bottles with moist earth they 

 buried themselves within a few hours. On July 31 one of them had pupated and 

 the fly came out August 17. It is plainly a Sarcophoga but has not yet been exam- 

 ined by anyone familiar enough with this genus to determine the species. The fly 

 and one of the larvae are in the Museum of Comparative Zoology in Cambridge, 

 Mass. — J. H. Emcrtoji. 



