1910.] NATURAL SCIENCES OF PHILADELPHIA. 435 



Measurements. — d\ Length of body 18.5-21.5 mm.; length of 



pronotum 4-5; greatest width of pronotum 



5.2-6.5; length of tegmen 18-25; greatest \^ '^XfP^ 



width of tegmen 5.5-7: 



9 . length of body 15.5-22.5 mm. ; length of Fi £ s - ] 5 and 16 ~ ***" 



. noptera couloniana 



pronotum 4.8-6; greatest width of pronotum Saussure. Supra- 



6.8-8.2 ; length of tegmen 6.2-8 ; greatest width anal £ la t e ?J L f fc , 4) 

 ° ft ' & and V (X 2J). Male; 



01 tegmen 4.5-5.5. Sulphur Springs, N. 



Distribution. — This species is now known to C. : female ; Chester- 



1 town, Md. 



range from Delaware and Maryland (Chester- 

 town and Laurel) south to at least northern Florida (Jacksonville), 

 west to at least eastern Texas (Hockley), north to Iowa and southern 

 Indiana (Crawford County). Outside of our limits it is also found 

 in Mexico. Its vertical distribution extends from sea-level to twenty- 

 five hundred feet elevation (Sulphur Springs). 



The dates on the material in hand range from January to August. 



Remarks. — The synonymy of this species has been established after 

 a very critical examination of the descriptions and the study of an 

 extensive series of specimens, including the type of hyalina. The 

 possibility of couloniana and major being the same has been suggested 

 by Blatchley, 20 but no attempt has been made up to the present time 

 to determine the true status of the names here synonymized. Saus- 

 sure and Zehntner's Temnopteryx major was, of course, based on the 

 short-winged female aud Brunner himself has shown the identity of 

 lata with couloniana, 21 while the possession of the type of hyalina 

 enables us to place Scudder's species with certainty. 



There is a very perceptible amount of color variation in this species. 

 of which the more usual type is that described by Blatchley 22 and 

 found in the type of hyalina, the disk of the male pronotum being pale 

 reddish ochraceous, while the other extreme, to which belonged the 

 type of couloniana, has this area more or less infuscate, particularly 

 cephalad. The depth of this infuscation is variable and it is some- 

 times only suggested by points and lines. In the female much the 

 same thing occurs as in the male, but usually less clearly defined. 



Such variation in size as is found appears to be purely individual 

 and has no geographic correlation. 



Some male specimens of this species bear a considerable resemblance 

 to individuals belonging to the pensylvanica-inxsqualis type, but we 



^Orthopt. of Indiana, p. 183 (1903). 



21 Nouv. Syst. Blatt., p. 413 (1865). 



22 Vide supra, p. 183. 



