Vol. XXX] ENTOMOLOGICAL NEWS 79 



type in the adult condition. These are : **the body apterous or 



subapterous the tectate dorsum, with the median carina 



of the pronotum, compressed-cristate the broad scapular 



area at the sides of the pronotum ; the lateral lobes of the pro- 

 notum bearing but one deep and angular excavate sinus, the 

 superior tegminal sinus being vestigial or entirely obliterated; 

 the tegmina either absent or rudimentary, normally covered 

 from view." These are of no more generic value than similar 

 features shown by species of the genus Acrydiitm, showing, the 

 retention of an immature pronotal type in the adult condition.^ 



The remaining characters given for Cavotcttix are : 



'The median carina of the vertex more compressed." This 

 is correct for the species there included. It is in itself insuffi- 

 cient for generic separation. 



"The somewhat wider scutellate frontal costa." This is in- 

 valid as a generic feature. In N. holtcri the frontal costa has 

 been found to vary from the narrower type found in the geno- 

 type, A^. fcmoratiis, to a condition fully as wide as found in the 

 species assigned by Hancock to Cavotettix. 



"The first joint of the hind tarsi nearly twice the length of 

 the second and third combined." This is a specific but not a 

 generic feature, as the difference between the species discussed 

 and fcmoratiis and holteri is not as decided as might at first 

 be supposed, when the moderate amount of individual variabil- 

 ity in this feature is noted. 



Neotettix proavus Rehn and Hebard. 



1916. Neotettix proavus Rehn and Hebard, Proc. Acad. Nat. Sci. 

 Phila., IQ16, p. 139. i$ , $ : Murphy, North Carolina ; Macon, Buck- 

 head and Jasper, Georgia.] 



1918. Cavotettix aptcriis Hancock, Ent. News, XXIX, p. 345. 1$, 

 9 : Clarksville, Tennessee.] 



1918. Neotettix proavus Fox, Ent. News, XXIX, p. 347. (Descrip- 

 tion of caudate phase.) [ $ : Clarksville, Tennessee.] 



After careful examination and comparison of a considerable 



1 In reference to this remarkable feature, Rehn and Hebard have 

 stated : 'That this condition is deep seated in the subfamily is quite 

 apparent, and it is equally evident that it is characteristic of certain 

 species and again occurs as a variant in species normally of the usual 

 type." Proc. Acad. Nat. Sci. Phila., 1916, p. 138, (1916). 



