30 ENTOMOLOGICAL SOCIETY 



Neuromus Rambur. 



This genus, of which N. testaceus Rambur is the type, is 

 rather variable in appearance ; the larger species show an ap- 

 proach to Corydalis, while the smaller species look much like 

 Protohermes. I have examined N. testaceus, N. intimus Mc- 

 Lachlan, N. latratus McLachlan, and the three American 

 species, hieroglyphicus Rambur, soror Hagen, and corripiens 

 Walker ; these latter may be placed in a subgenus Chloronia 

 having but three cross-veins from radius to radial sector, and 

 branches of median vein forked only near tip. 



Nigronia, n. gen. 



This genus I erect for the two black-winged species found 

 in the Eastern States, serricornis Say and fasciatus Walker, 

 distinguished as indicated in the table. The habits of the 

 adult flies is quite different from that of the typical Chauliodes. 

 This genus bears the same relationship to Chauliod'es that 

 Protohermes does to Hermes. 



Chauliodes Latreille. 



In this genus I have examined our two species, pectinicornis 

 Linnaeus, and rastricornis Rambur, C. diversus Walker from 

 New Zealand and C. japonicus McLachlan from Japan. In 

 C. diversus the pronotum is longer than broad ; and in this and 

 C. japonicus the costal cells are as long as broad. 



It may be well here to add some points wherein the Sialinae 

 differ from the Corydalinae. In Sialis there are no ocelli ; the 

 4th tarsal joint is bilobed ; the basal tarsal joint is about twice 

 as long as the apical (subequal in the Corydalinsej ; the anal 

 and cubital veins of fore-wings are both simple (forked in 

 Corydalinae) ; the upper branch of radial sector sends a few 

 branches to the costal margin (very rarely one in the Cory- 

 dalinge). There are three cross-veins from radius to radial 

 sector as in many Corydalinae. 



NOTES ON A FEW APPARENT CASES OF SYNONYMY IN 



LEPIDOPTERA. 



By HARRISON G. DYAR. 



Kodiosoma fulva Stretch. 



New synonym, Kodiosoma otera Barnes, Can. Ent., xxxix, p. 10, 1907. 



The female type agrees in general with the female of the 

 variety tricolor, the border of the hind wings being narrower, 



