768 EUROPEAN AND NORTH AMERICAN SPECIES 



15 T. bromius L. Van der Wulp recorded tliis species frora North America, but 



Osten Sacken did not notice it and Aldrich has not included it in his 

 Catalogue. 



16 T. flavipes Wied. is an Arctic species occurring in Eastern Siberia and North 



America. 



17 Chrysops nigripes Zett. is another Arctic species recorded from North 



Europe and from Sitka or Alaska. 



18 C. sepulcralis Fabr. Kirby doubtfully recorded this species as North 



American in Faun. Bor. Amer. Ins., 314, but Osten Sacken considered the 

 identification very uncertain. 



19 Anastoechus nitidulus Fabr. has a very wide range through South Europe, 



Siberia, and Japan, and is believed to be the same as A. harhatus O. Sack, 

 which occurs widely in the United States. 



20 Bomtoylius major L. This species certainly occurs in California and Japan, 



and is now considered indistinguishable from B.fratelhis Wied. which occurs 

 generally over the United States. 



21 Ploas macroglossa Duf. A number of specimens in Bigot's collection under 



this name may include more than one species, but I am unable to distinguish 

 them from the single type specimen of P. mauritanica Bigot, or from the 

 single specimen which I believe to be the original type of P . pictipennis Macq. 

 from Carolina. 



22 Exoprosopa capucina Fabr. This common European species is now believed 



to be identical with E. dorcadion O. Sack, from the Western States, and 

 possibly with E. californice Walk. It was at one time suspected of being the 

 same as E. sima O. Sack, from Nevada, but Aldrich in his Catalogue (1905) 

 has retained that as a distinct species. 



23 Argyramcelba varia Fabr. Coquillett has recorded this species from 



California. 



24 Anthrax morio L. This well known European species is now considered the 



the same as A. morioides Say and probably the same as Hemipenthes 

 seminigra Lw. 



25 A. Paniscus Rossi and A. hottentottus L. belong to a group of very closely 



allied species, and some of the American forms seem to be indistinguishable 

 from some European forms, at any rate from existing descriptions. 

 A. molitor Loew is said to differ from A. flamis only in having yellow 

 hairs round the margin of the scutellum, but unfortunately A. Jlavus Meig. 

 still remains insufficiently described. 



26 Scenopinus fenestralis L. This species is apparently common in North 



America, and was described by Say under the name of ^S*. 2^Mip€s- 



27 S. glabrifrons Meig. Loew in Sillim. Journ. N. Ser., xxxvii., identified this 



species from South-west Europe and from North America. 



28 Pamponerus germanicus L. This species has not been recorded from 



North America, but there were several specimens (3 ^ 3 ? ) in Bigot's 

 collection to which a label of "Am. boreal. " was attached. 



29 Laphria gilva L. This well known European species has been recorded from 



Canada and Colorado. 



30 L. flavescens Macq. is an unrecognised species allied to L. flava of which 



Macquart professed to recognise two male specimens, one from Carolina and 

 the other from the Pyrenees. The types are probably in the Paris Museum 

 and the species must remain undetermined until they are examined. 



