220 ENTOMOLOGICAL SOCIETY 



Hemichroa americana. Feet present on segment 8 ; segments 

 indistinctly divided into 6 annulets, one cut off before, two behind 

 the primitive setiferous annulets as in the Tenthredinidae. 



On larval characters, this species clearly does not belong to the 

 Nematinae. 



CIMBICIN^E. 



The characters are, in general, as in the Tenthredininae. I 

 cannot give details at the moment of writing. 



Acordulccfadorsalis. No feet on segment 8 ; segments divided 

 into three annulets, each with three tubercles above the tracheal 

 line, except on the anterior annulet, where the middle one is miss 

 ing ; very indistinct tubercles on subventral ridge. 



This larva is evidently allied to the Hylotominae, not to Cimbex. 



TENTHREDININAE. 



Blennocampa spircece. Feet on segment 8 ; segments divided 

 into five annulets, one cut off before and one behind the three 

 primitive setiferous annulets, which bear three rudimentary 

 spines above the tracheal line, except the middle annulet, where 

 only one is present low down. A group of spines on each division 

 of the subventral ridge. 



Siobla excavata. Feet on segment S ; segments divided into 

 six annulets, one before, two behind the primitive annulets, which 

 bear fine points, except the middle annulet, where only a few are 

 present low down. 



PAMPHILIIN^E. 



Lophyrus lecontei. Feet on segment S ; segments divided into 

 six annulets, two cut off behind the last primitive setiferous an 

 nulet, and one cut off behind the second, the original setae thus 

 present on annulets i, 2, and 4, numerous, developed alike on all ; 

 a group of setae on each division of subventral ridge. 



Pamphilia ochreata. No feet ; a pair of jointed anal append 

 ages. Segments divided indistinctly into four annulets ; no per 

 ceptible setae. 



XYELIN^E. 



No larvae seen by me.* 



I have some other striking modifications of structure, but the 

 larvae are not yet bred, so I do not know the significance of them. 



Mr. Ashmead congratulated the speaker upon this work, and 

 said that he considered it of great importance. The annulets and 



* These larvae have since been discovered. See Psvche, VIII, 213; Can. 

 Ent. XXX, 175, and XXXI, 41. 



