48 ENTOMOLOGICAL SOCIETY 



A few years afterwards, however, he recognizes his mistake, 

 and in 1873, in the Canadian Entomologist, vol. v, p. 54, 

 acknowledges the synonym and gives an excellent synoptic table 

 of the species known to him at that time in the North American 

 fauna. 



In this paper he enumerates 12 species, 8 being described for 

 the first time, and, of these, four were from Mexico. He also 

 gave valid reasons for believing Say was wrong in placing his 

 Bracon populator in this genus. 



Cresson here recognizes the original spelling of the genus 

 Toxoneuron, but in his " synopsis," 1886, changes it to Tox 

 oneura, but without giving his reason for doing so. As this 

 change seems to have been universally followed, I have not 

 thought it worth while to restore the original name. 



Toxoneura has now been made the type of a subfamily, Tox- 

 oneurince, and a position assigned it between the Ichneutince and 

 the Helconincc. It appears to me, however, that this is an un 

 natural position, as it has no affinities whatever with these 

 groups. All its affinities are entirely, with the Agathidince and 

 the Microgasterince ; the structure of the abdomen closelv re 

 sembles many forms in the latter, while all its other characters, 

 except venation (although here, too, there is still a resemblance to 

 some exotic forms) , are those of the former. 



If the genus is not referred to the subfamily Agathidincc, in 

 my opinion the Toxoneurincz should, at least, be placed next to 

 them. 



Comparatively little is known of our species. Messrs. Riley 

 and Howard have recorded in Insect Life, vol. iii, page 60, the 

 rearing of To xoncura minuta Cr., at Kirkwood, Mo., from a 

 Tineid Gelechia prunifoliella Chambers, found on Peach, 

 while I have in my own collection a specimen of Toxoneura 

 tibiator Say reared from a Lepidopterous Leaf- roller on Black 

 Locust. 



Although this is all we know of the habits of our species, it is 

 quite evident the genus is parasitic only on Lepidopterous larvaB. 



Below I give a synoptic table of the species found in our 

 fauna north of Mexico, and describe three new forms : one from 

 Florida, T. floridana, in my collection, and two, T. pluto and 

 T. californica, from California, in the U. S. National Museum: 



TABLE OF SPECIES. 



Body not entirely black 2 



Body entirely black. 



Wings black or fuliginous. 

 Vestiture black. 



Legs entirely black T. pluto, sp. n. 



Vestiture pale or grayish. 



