432 Annals of the Carnegie Museum. 



male about one-half the length of the eyes. Eyes 

 globose. First joint of the antennae less than one- 

 fourth of the length of the eyes. Last ventral segment 

 of the male abdomen obtuse . . Corynorhynchns Brunner. 

 ff. Posterior tibiae below armed towards the apex with some 

 spines. Rostrum in the male longer than the eyes. 

 Eyes depressed. First joint of the antennae not less 

 than one-third the length of the eyes. Last ventral 

 segment of the male abdomen more or less produced. 

 Tetanorhynchus Brunner. 

 dd. Posterior tibiae above provided on the inner margin with an apical 

 spine. Front legs inserted on the anterior third of the prono- 

 tum. Posterior tibiae furnished externally with an apical 

 spine. First joint of the antennae less than one-fourth the 



length of the eyes Stipkra Brunner. 



bb. Pronotum more or less depressed, separated from the sternum by a longi- 

 tudinal suture. 

 c. Head in advance of the mouth subconstricted, the front viewed from 

 the side sinuate. Pronotum with its anterior margin subdilated. 

 Posterior tibiae provided on the outer margin with an apical 

 spine. Last ventral segment of male abdomen not produced. 

 d. Pronotum almost twice the length of the head. Mesopleura 

 dentate. Posterior tibiae entirely unarmed below. 



Taxiarchus Brunner. 



dd. Pronotum a little more than one-half longer than the head. 



Mesopleura entire. 



e. Meso- and meta-notum divided. Posterior tibiae above 



provided with an apical spine on the inner margin, 



below spined towards the apex or unarmed. 



/. Rudimentary wings present in the female. Rostrum 



porrect, as long as the rest of the head, or a little shorter. 



Posterior femora above with the apical margins obtuse. 



Anchotatus Brunner. 

 ff. Rudimentary wings wanting. Rostrum decurved, either 

 longer or shorter than the eyes. Posterior femora with 

 both margins normally produced into a spine. 



Epigrypa Brunner. 

 ee. Meso- and meta-notum, although the median segment is 

 not divided, strongly dilated. Posterior tibiae above on 

 both margins without apical spines, below unarmed. 



Hybusa Erichson. 

 cc. Head gradually acuminate, the front viewed from the side straight. 

 Pronotum with the anterior margin not dilated. Posterior tibiae 

 above with both margins lacking apical spines (below spined towards 

 the apex). Subgenital plate of male abdomen lengthily produced. 

 (Posterior femora with the terminal margins obtuse. Form very 

 slender.) Cephaloccema Brunner. 



