264 ENTOMOLOGICAL SOCIETY 



belong to Anthalia. Euthyneura bucinator Melander was 

 founded on a single specimen without antennae, and its generic 

 position cannot be given. 



Sciodromia palliata Coquillett belongs to Microphorus. 



Empis conjuncta Coquillett has more affinity with typical 

 species of Empis than with those of any other genus ; from 

 Ragas it differs widely, especially in the strongly projecting 

 axillary angle, in the venation, mouth parts, etc. 



Hilara viridis Coq. belongs to the subsequently erected genus 

 Lamprempis, as suspected by Prof. T. D. A. Cockerell in a 

 recent letter to the writer. 



Synamphotera bicolor Loew is given above as the type of the 

 new genus Boreomyia. 



Our species originally described under the old genera Hemcro- 

 dromia and Mantipeza may be listed as follows : 



Chelifera : albipes Walker, notala Loew, obsoleta Loew, palloris Co 

 quillett and valida Loew. 



Hemerodromia : caplus Coquillett, defessa Williston, cmpiformt's Say, 

 rogatoris Coquillett and superstttiosa Say. 



Neoplasta : mexicana Melander and scapttlarts Loew. 



Metachela : collusor Melander and defecta Loew. 



Hydrodromia stagnalis Haliday has been recorded from 

 Greenland by Lundbeck.* 



I am unable at present to assign to their proper genera our 

 species described under the old genera Hybos and Clinocera, 

 owing to the insufficiency of the descriptions and the lack of 

 specimens. 



Wheeler and Melanderf state that Hybos triplex Walker, 

 H. purpureus Walker, H. duplex Walker, and H. subjectus 

 Walker comprise only one species, and this is repeated by Mr. 

 Melander.]: When preparing my Revision of the Empidae I 

 constructed the following table, but omitted its publication. 

 While the names assigned to the species may not be correct in 

 every instance, owing to Walker's superficial descriptions, yet 

 every conscientious student must admit that there are three valid 

 species : 



1. Hind tarsi of male bearing a row of stout black spines on the outer side 



of the first joint, femora without tubercles, 



Euhybus subjectus Walk. 

 Hind tarsi without black spines 2 



2. Hind femora of male bearing on the outer third of the under side 



several elongated tubercles, each tipped with a short spine, the 

 greatly curved hind tibiae with a corresponding cavity, 



E. purpureus Walk. 

 Hind legs without tubercles and cavities ... R. triplex Walk. 



*Vid. Meddel. Natur. Kjobenhavn, 297, 1898. 



t Biol. C.-Am.. Dipt , i, 373. 



$ Trans. Am. Ent. Soc., xxvin, 248. 



