THE CANADIAN ENTOMOLOGIST. 59 



divisions within tiie genus. The ordinary type of antenna in Carneadcs 

 is what Mr. Grote has called brush-like, and consists of joints with more 

 or less marked lateral projections, bearing on all sides stiff, bristly hair. 

 It is the form that is called " bristle-tufted " by other authors. The 

 lateral projections vary in size in the species, and when they become 

 evident to the naked eye the antenna is called pectinated. The pecti- 

 nations may be long or short, and tlie distinction between a shortly- 

 pectinated antenna and one that is merely "brush-like" is entirely a 

 matter for the individual judgment of the author who uses the term, as 

 the two forms grade into one another imperceptibly. Mr. Grote cannot 

 escape either admitting that the sexual character that I have made use of 

 to separate Porosagrotis is a good one for the generic purposes or ad- 

 mitting that Agro/io/iia must supercede Carneades. It does not make 

 any difference to me which he chooses, because it does not distress me, 

 as Mr. Grote says it does him, to have any name proposed by me relegated 

 into the synonym, whenever there is scientific cause for it set forth by one 

 whose methods of work and accuracy of research entitle him to the confi- 

 dence of those for whom he writes. 



MONODONTOMERUS IN APPALACHIA. 



BY W. H. PATTON, HARTFORD, CONN. 

 MONODONTOMERUS STIGMA (Fabr.). 



M. vlridcenetis, Prov., Canada. 



Common in New England. In the District of Columbia I have 

 reared it from the cell of Melitonia eiiglossoides, var. iaurea, Say. 



The genus Oligosthenus cannot remain separated, the fine dentitions 

 of hind femora being more or less indistinct, 



A frequent variety has no cloud about stigma. The abdomen 

 varies in the amount of purple. 



A male taken by me at Hartford, Conn., Aug., 1895, differs de- 

 cidedly from the male oi M. montivagus, Ashm., described by Mr. Cocke- 

 rell in the Can. Ent., XXVIII, 127, May, 1896. My male measures 

 3 mm. in length. It has no cloud about stigma ; the abdomen is purple, 

 except apex and most of the first segment. The scape is slender, as in 

 the female ; the flagellum is as in the female. Hind coxre and femora 

 much more swollen than in the female, tooth longer, no denticulations. 

 The abdomen is short, broad ; dorsum flat, shining. The descriptions of 

 the fernales do not differ specifically. 



