424 PROCEEDINGS OP THE NATIONAL MU8EUM. vol. 43. 



middle, and one at near the apex of the antero-dorsal surface, and one 

 at near the basal third of the postero-dorsal surface. Sometimes 

 there is an adventitious spine occurs in the species of this genus and 

 alters the position of the usual spines but it generally occurs on one 

 side only, and if other characters are taken into consideration no 

 trouble need be anticipated in correctly placing' the species. 

 Franconia, New Hampshire, Mrs. Slosson, one female. 



CH^TONEUROPHORA OLYMPIC Brues. 



This species seems to be very distinct from all others in the genus 

 by its very pale color; the thorax is reddish yellow; the abdomen is 

 black at the base, and the apical half is orange; the legs are all 

 yellow, and the hind tibia has one spine at apical third of dorsal 

 surface, one at near the middle of antero-dorsal surface, and another 

 on same surface at near apex. The species is quite as large as thoradca 

 Meigen, being 5 mm. 



Olympia, Washington. I have also seen it from Ithaca, New York. 

 (O. A. Johannsen.) 



CHiETONEUROPHORA FENNICA Becker. 



This is a comparatively rare European species that is not yet 

 recorded from America. It is rather smaller and more robust than 

 the other species in the genus and may be known by the presence 

 of only two hind tibial bristles, one dorsal, at the basal third and a 

 second, subapical one on the antero-dorsal surface. 



CH.ffiTONEUROPHORA LUGGERI Aldrich. 



This species resembles fennica Becker, but is separable by the 

 number of bristles on the hind tibia. Those are situated, one on the 

 dorsal and one on the antero-dorsal surface and one on nearly the dor- 

 sal and one on the antero-dorsal surfaces, transversely, at near apex. 



Localities. — Plummers Island, Maryland; Franconia, New Hamp- 

 shire (Mrs. Slosson); Lawrence and Baldwin, Kansas (Bridwell); 

 St. Paul, Minnesota; New Bedford, Massachusetts (Hough), and one 

 without locality, collection of Coquillett. 



CH-ETONEUROPHORA CALIGINOSA Meigen. 



This is not so far recorded from America. It may be distinguished 

 from any of its congeners by the number and location of the hind 

 tibial spines. Occurs along with curvinervis Becker, about carrion. 



CH^TONEUROPHORA SPINIPES Coquillett. 



Resembles in most particulars the last species but whereas caliginosa 

 has only three serial spines on the postero-dorsal surface, and two 

 on antero-dorsal surface, one at near middle and one at near the 



