6 PROCEEDIlSrGS OF THE NATIOlSrAL MUSEUM vol.80 



with smaller bristles than in male, the uppermost not so high ; hairy- 

 patch of parafacial reaching nearly to lowest f rontals. Shining api- 

 cal portion of second, third, and fourth abdominal segments narrower, 

 the pollinose portion more uniform in color but still showing the 

 median division in oblique light ; fourth segment fully half red. One 

 pair of erect discals on second, third, and fourth segments; keel red 

 on third segment; spines of keel conspicuous on second, third, and 

 fourth segments, but those of second are more slender than the others 

 and somewhat longer. 



Length of male, 7-9.5 mm. ; of female, 6-7.5 mm. 



Described from 19 males and 12 females, all' reared from Neodi- 

 prion vallicola Rohwer, at Erongaricaro, Michoacan, Mexico, arid sent 

 to the National Museum by Dr. Alfons Dampf, of the Oficina para 

 la Defensa Agricola of the Mexican Department of Agriculture. 

 Eleven males and six females are returned to Doctor Dampf, the re- 

 mainder retained in the National Museum. The host sawfly was 

 also sent for determination. 



The species is closely related to spinigera^ but differs in the charac- 

 ters given in the keys, to which may be added that the ground color 

 of the parafacials and cheeks is mostly yellow in the latter, quite 

 black in niexicana. The males of sp'lnige7'a have light yellow or 

 grayish pollen on the posterior orbits. 



Type.— Male, U.S.N.M. No. 43354. 



SPATHIMEIGENIA OBSCURA, new sp«cies 



This is a large Mexican species similar to 77iexicana, but differs as 

 indicated in the key. It has a striking character, which may be an 

 abnormality in the single specimen — there is a long bristle on each 

 parafacial close to the suture, turned in across the face and appear- 

 ing without careful scrutiny as one of the bristles of the ridge, but 

 larger than the others. These bristles arise outside the suture but 

 close to it, as stated, and are unlike anything I have ever seen in 

 flies of this relationship. 



One male, Mexico, without precise locality, donated by H. J. Rein- 

 hard. 



Type.— Male, U.S.N.M. No. 43355. 



SPATHIMEIGENIA AURIFRONS Curran 



Spathimeigenia aurifrons Cueran, Can. Ent., vol. 62, p. 246, 1930. 



Described from eight specimens of both sexes, all reared from Ne- 

 odiprion sp. at Mont Laurier, Quebec, by M. B. Dunn. Type in the 

 Canadian National Collection, Ottawa; paratypes in American Mu- 

 seum of Natural History, New York. The latter institution has do- 

 nated a female and lent a male, paratypes, to the National Museum, 



