124 



PROCEEDINGS OF THE ACADEMY OF 



[Feb., 



measurements as given below with those of the type female of 

 persimilis show the similarity of proportions. 



The proportions of the El Paso specimens are seen to approximate 

 very closely to those of the type female and we feel justified in con- 

 sidering them persimilis. Actual comparison with Brownsville females 

 or the acquisition of El Paso males would, however, make the deter- 

 mination more positive. No very close relationship exists to the 

 Mexican D. calcarata and comparison has been made with females of 

 femorata, veliei 4 and arizonensis. 



Diapheromora mesillana Seudder. 



Ten females, including one mature specimen and others in three 

 immature stages of growth, appear to represent this species, previously 

 known only from the male sex. When compared with the species 

 represented by the female sex in the collections before us they are 

 clearly different, as the following comparison shows : 



Head. Similar to arizonensis but more depressed. 



Pronotum. Much as in arizonensis, distinctly shorter than in 

 veliei. 



Dorsal apical abdominal segments. Longer and narrower than in 

 femorata, persimilis, and arizonensis, much as in veliei. 



Cerci. Longer than in all but persimilis and veliei, tapering, acute, 



4 Brunner (Insektenfam. Phasm., II, pp. 337, 338) has redescribed this species 

 from Texas under the name dolichocephala. He entirely overlooked the name 

 veliei as well as the species arizonensis Caudell, Carolina Seudder, mesillana 

 Seudder and persimilis Caudell. 



