JAMES A. G. REHN AND MORGAN HEBARD 



283 



Scudderia curvicauda curvicauda (DeGeer) (PI. IX, fig. 7 ; pi. X, fig. 2G.) 

 1773. Locusta curvicauda DeGeer, Mem. Hist. Ins., iii, p. 446, pi. 38, 



fig. 3. [Pennsylvania, probably Philadelphia.] 



1841. Phaneroptera angustifolia Harris, Ins. Inj. Veget., 1st ed., p. 



129. [Massachusetts.] 



Lugger's figures of this species," which he recorded from Minne- 

 sota as S. furculata,^- are very poor, the figure of the entire insect 

 is crude and the drawing of the genitaha in both this figure and 

 that of the apex of the male abdomen is verj' incorrect. 



Though structurally very distinct, the often similar appearing 

 S. texensis is easily confused with the present insect in the female 

 sex. The present senior author has once recorded this species as 

 S. texensis^^ from between Cedar Grove and Chatsworth, New 

 Jersey. We find that curvicauda curvicauda is distinguishable from 

 texensis in its somewhat more robust structure with proportion- 

 ately shorter dorsum of the pronotum, wider tegmina and less 

 gloss}^ appearance; in the male the genitalia^'' are very different and 

 in the female the ovipositor is slightly less sharply bent upward 

 and slightly more full toward the apex. 



Measurements (in millimeters) of extremes 



& 



Gun Lake, Michigan.. (6) '^ 

 Rye Beach, New Hamp- 

 shire (1) 



Marion, Massachusetts. (3) 

 Yonkers, New York. . . . (3) 

 Rockville, Pa (2) 



Length 



of prono- 



tum 



Length 

 of tegmen 



Greatest 



width 



of tegmen 



Length i Length 



of caudal I of subgeni- 



femur I tal plate 



5.4-6 33.2-37.2 7-7.8 125. 2-26. 8 7.2-7.8 



5.5 



5.6-5.9 



6 



6 



33.3 

 34-35.3 

 32.8-36 

 35.9-36 



Atsion, New Jersey. . . . (9)j 5.8-6 34.6-36. 1 



7-7.4 

 7.5-7.6 

 7.5-7.6 

 7.6-7.8 



'1 Orth. of Minn., p. 217, figs. 139, 140, (1898). 



^- Though a synonym of S. mexicana, as has been shown by Scudder, 

 furculata has not only been confused with S. curvicauda, but with S. furcata 

 as well. 



" Entom. News, xv, p. 330, (1904). 



^* In the discussion under pistillala and in the key, the characters of the 

 disto-dorsal abdominal segment of the present species are fully described. 



1^ In the tables of measurements throughout the present paper, the 

 figures in parentheses immediately after the localities indicate the number 

 of specimens measured. 



TRANS. AM. ENT. SOC, XL. 



