164 C. II. T. TOWNSEND, 



niesa approaches acton Coq. in having brown on second to fourth 

 segments, though the brown does not appear as a front border to 

 the segments as in that species. It is best referable to xanthos at 

 present, but may prove to be a good variet}' on the collection of 

 further material. The male and tlie other female agree perfectly, 

 both in size and abdominal coloration, the anal segments of male 

 being also yellowish and the hypopygium brownish yellow. 



The occurrence of the family Apioceriche in New Mexico is of 

 extreme interest, and particularly so is the occurrence of the genus 

 Rhaphiomidas ; not only the genus, but also the family so far as 

 North America is concerned, being heretofore known only from 

 California and Lower California. It should be mentioned that 

 Professor Cockerell caught an "asilid-like fly" on the sand hills 

 near Mesilla Park, N. M., on May 21st, which was determined by 

 Mr. D. W. Cocjuillett as Apiocern hnruspex O. S. The specimen 

 was not returned, and is now in the National Museum. I am 

 inclined to doubt the determination until it is verified or other 

 specimens are collected in that locality. 



