80 ENTOMOLOGICAL NEWS [Mar., '19 



series from Clarksville, Tennessee, with the type of proai'its 

 and other specimens of this species, we unhesitatingly assign 

 Cavotettix apterus Hancock to the present synonymy. 2 



In considering the characters given by Hancock as diagnostic 

 for aptcrus, we find them attributable wholly to individual vari- 

 ation, excepting the presence or absence of tegmina and wings. 

 From examination of the series it is ascertained that in this 

 species greatly atrophied tegmina and much reduced wings are 

 present in all, but apparent only in occasional examples. 3 



Measurements (in millimeters} 



Length Length Width Length Width 

 of body 4 of pro- of pro- of caudal of caudal 

 notum notum femur femur 



- We have received full concurrence in this opinion by James A. G. 

 Rehn, Henry Fox and W. S. Blatchley. The pair from which apterus 

 was described was given to Blatchley by Fox, who in turn loaned the 

 specimens to Hancock for examination. Though Hancock stated that 

 aptcrus might be only a race or variety of proavus. it is clear that he 

 made no real effort to secure further material for comparison, or to 

 determine the actual values of the characters given as of specific 

 diagnostic importance. 



3 Through a desire to damage or distort the male allotype of proavus 

 as little as possible, Rehn and Hebard erred in making the statement 

 "Tegmina absent." Examination of this specimen relaxed shows that, 

 as in the other specimens at hand, vestigial tegmina are present though 

 wholly concealed. It is believed that Hancock is similarly incorrect in 

 his statement concerning apterus in his key, "Tegmina absent in female," 

 which statement is qualified by "or entirely hidden from view" in his 

 description. 



4 From vertex to apex of abdomen. 



5 Caudate examples. 



