60 Journal New York Entomological Society, [^oi. xxx. 



more numerous laterally, each puncture giving rise to a long, fine, 

 white hair, and filled with a cotton-like substance. Male: prosternum 

 densely clothed with long hairs. Last ventral (PI. VII, fig. i) widely 

 and deeply sinuate; apices angulated. 



Length, from 13 to 16 mm.; width, 5 to 6 mm. 



Female: prosternum with few or no hairs. Last ventral (PI. VII, 

 fig. 2) with shallow sinuation points rounded. Antennae with first 

 three joints coppery. 



Length, 15 to 20 mm.; width, 5.5 to 8 mm. 



Twenty-four specimens examined: 13 males and 11 females from 

 Millers, Indiana, and Cicero, Illinois, taken on poplar from July 9 to 

 August 18. 



The series of ferrea examined show practically no variation other 

 than in size. The greenish-bronze color and the prominently bidentate 

 elytral apices readily distinguish it from other species. So far as my 

 observations go after examining the specimens in a number of collec- 

 tions, this species seems to be rare except in the vicinity of Millers, 

 Indiana. Melsheimer gives the type locality as "Virginia," and a 

 specimen in the American Museum is also labeled Virginia. A speci- 

 men in the National Museum is labeled Duluth, Minnesota, and another 

 Williams, Arizona, VI-19.^ All other specimens seen were from 

 Cicero, Illinois, or Millers, Indiana. No host has been mentioned in 

 connection with this species other than poplar. 



LeConte, 1859, p. 204, says, " P. ferrea Mels. One specimen west- 

 ern states, others Missouri," and adds, " This species differs from 

 thureura by the narrow form and more flattened thorax; the sides of 

 the thorax, diverge a little from the base, so that the widest part is 

 about the middle. It is true that the thorax of ferrea is widest at 

 about the middle, while in thureura it is widest behind the middle. 

 The body, however, certainly is not narrower in form than thureura, 

 if either species presents a narrower form; on the whole, it will be 

 thureura." 



Poecilonota debilis Leconte. Plate V, fig. 3. 



" 5- P. debilis, cupreo-senea, thorace subtransverso, a basi antrorsum 

 angustato, lateribus late rotundatis, rude punctato, costa dorsali latiuscula 

 Icevi, alteraque vix distincta, elytris striatis, prsecipne confertim punctatis, 



1 Probably cyanipes var. californica. , 



