Vol. XXviii] ENTOMOLOGICAL NEWS. 327 



Phaonia nigricans Joh. 



The genus Phaonia, as at present defined by recent European 

 workers, is distinguished from Mydaea by the presence of a 

 seta on the posterior median extensor surface. If this inter- 

 pretation be adopted the specific name noted above which I 

 assigned to one of our New York species need cause no con- 

 fusion. If, however, the emphasis be placed upon the presence 

 or absence of the pilosity of the eyes, redistributing the 

 species into the two groups corresponding to the genera 

 Hyetodcsia and Spilogastcr, then the name nigricans becomes 

 a homonym, having been assigned to another species by Stein 

 in 1897. For the benefit of those who prefer the latter group- 

 ing of species I suggest that the name cayugae be adopted 

 to replace my nigricans. 



An additional locality record for this species is McLean, 

 Tompkins County, New York. 



Dialyta flavitibia Joh. 



$ . — Like the female except that it is a trifle smaller (6 mm.); the 

 front is about as wide as one eye, somewhat narrowing at the base of 

 the antennae; buccae narrower and antennae longer and broader than 

 in the female; orbits about half as wide as the frontal stripe at the 

 lower ocellus. Abdominal setae longer and stouter than in the female ; 

 five pairs of marginal setae on each of segments two and three and 

 six pairs on the fourth, five pairs of discals on the third and fourth 

 segments; all sternites visible. Femoral setae stronger and more nu- 

 merous; tibial setae as in the female except that those of the hind legs 

 on the outer lateral flexor side are more uniform in size. Crossveins 

 only faintly tinged; one large costal spine; R 4+5 more arched up- 

 ward. The hypopygium somewhat resembles that of D. atriceps as 

 figured by Schnabl and Dziedzicki (PI. 21, figs. 555, 556). In our 

 species, however, the fulcrum has, in addition to the laterals, a small 

 median tubercle on the ventral side ; the inferior forceps are stouter, 

 and the superior forceps are quite different, being deeply cleft, re- 

 sembling those shown in fig. 493 (PI. 19), but with the median angles 

 rounded, not produced. The fifth sternite differs but little from that 

 figured for D. atriceps. 



This specimen was taken at Danbury, Connecticut, in June, 

 and sent to me by Mr. C. W. Johnson. There is a female 

 specimen in the Cornell Collection from Ohio, and Mr. John- 

 son writes me that the species also occurs in Pennsylvania 

 and Ontario. 



