66 THE CANADIAN ENTOMOLOGIST. 
DESCRIPTIONS OF NORTH AMERICAN HYMENOPTERA, No. 6 
BY E. T. CRESSONT, 
Continued from Page 54. 
Genus ‘TOXONEURON, Say. 
The characters of this genus are given at length under the name of 
Tenthredoides (Proc. Ent. Soc. Phil, iv., p. 290), which appears to be 
synonymous. It may be easily recognized by the short robust bod 
y ÿ Vi y g y Vise 
rather large transverse head, stout legs, broad ample wings (which are 
generally fuliginous), and especially by the form of the marginal cell, 
which is rather suddenly constricted (or somewhat reclivate) at tip of 
second sub-marginal cell, and thence narrowed to the apex, which 1s some- 
what incurved, and reaches the extreme apex of the wing; this, as well 
as the second and third submarginal cells, are indistinctly defined, the 
nervures being sub-obsolete. 
The species, thus far known, may be distinguished by the characters 
given in the following table :— 
Body entirely black. 
Wings entirely fuliginous. 
Legs black, anterior knees honey-yeilow. 
Mibialispurs HENS) AeA ERP ER o.coom lin ZNSAKOIAS, 
Pibial spurs) Whites si. ws vests se sce CE sean eet ees ENT QUE 
Legs black, anterior femora and tibiæ, and intermediate 
knees honey-yellow. .225.60 URL oer cs 3. ORIZABÆ, 
Legs honey-yellow, cox:e, trochanters, ne of posterior 
tibiæ and their tarsi black................ 4, EXPLORATOR. 
Wings hyaline, apex fuliginous. 
Legs entirely black. DE au Us . MEXICANUM 
Legs black, A pair except De Tone lle et 00 MAPICAUN, 
Legs black, anterior tibiæ and tarsi, base of intermediate 
tibiæ, their tarsi and band at base of pos- 
terior tibiæ white or yellow... ie 
Body black; head, pro and mesothorax and ES eas abr O- 
ferruginous. AU 
Body black ; abdomen and legs REG fes uginous . Ron 
Body ferruginous ; head, antennæ, metathorax aid pleura ‘glace .10. SEMINIGRUM.. 
Body fulvo-ferruginous ; mouth, antennæ, pleura beneath and 
metathorax black ia wecre aes ate eaAVWAUROIR 
Body yellow ; three spots on mesothorax, Aas on Soie, and ab- 
domen, except base, black................12. ORNATUM. 
©t 
1 
- TIBIATOR. 
THORACICUM,. 
118: 
9. ABDOMINALE. 
Lun x À 
