REHN AND HEBARD 207 



Lone Rock, Wisconsin, VIII, 12, 1906, (J. D. Hood), 1 9, [Pa. State Dept. 

 Zool.]. 



Denison, Iowa, VII, 20, (J. A. Allen), 1 9, [M. C. Z.]. 



West Point, Nebraska, VIII and IX, 1884 and 1887, (Bruner), 5 cT, type 

 and paratypes, [Heljard CIn. and A. N. S. P.]. 



Lincoln, Nebraska, VIII and IX, 1888, (Bruner), 2 9 , allotype and paralype, 

 [Hebard Cln.], (1 macropterous). 



Halsey, Nebraska, VII, 12, 1909, (R.; in grasses on river plain), 2 juv. 9 . 



Watertown, Illinois, VIII, 9, (McNeill), 1 9, [M. C. Z.]. 

 Conocephalus attenuatus (Scudder) (PI. XVI, fig. IG; XVII, 15; XVIII, 



29 antl 30; XX, 16.) 

 1869. Xiphidiian allcnuatum Scudder," Trans. Am. Ent. Soc, ii, p. :305. 



[Illinois.] 

 1891. Xiphidium sp.? McNeill, Psyche, vi, p. 24. [Illinois. | 



1891. [Xiphidium] hinccolatnm Bruner, Can. Ent., xxiii, p. 59. (Nomen 

 nudum.) 



1892. Xiphidium .scudderi Blatchley, Can. Ent., xxiv, p. 26. [Vigo Count\-, 

 Indiana.] 



1892. [Xiphidium] lanceolatum Bnmer, Ent. News, iii, p. 265. (Explanation 

 of nomen nudum.) 



Blatchley states, in 1903, that h\s scudderi was based upon the 

 brachypterous condition of the present species.^" This is true, 

 and the name is consequently placed in the synonymy here 

 without reservation. 



The position of the present species is in group C of the sub- 

 genus Xiphidion, between C. nigropleurum and C. nigroplenroides. 

 The form and length of the ovipositor in the female, and cereal 

 characters in the male, afford features by which the species can 

 be readily distinguished. The coloration and color pattern is 

 also distinctive; the color pattern, however, showing a closer 

 similarity to that of nigropleuroides than to any other form. 



The face is warm buff with median portion mahogan}- red, 

 radiating below to form a dark suffusion on the genae and ex- 

 tending upward on the sides, thus enveloping the postocular 

 region; the lateral lobes of the pronotum, excepting the dorsal 

 margin, are of the same color, while the medio-dorsal stripe of 

 head and pronotinn is somewhat darker. The remaining por- 

 tions of the head, broad margins of the medio-dorsal strij)e of 

 head and pronotum, and the limbs, are warm buff, the femora 

 very finely speckled with mahogany red. In the male, the abdo- 



^^ The type of this species has been destroyed. 

 *» Orth. of Indiana, p. S79. 



TRANS. AM. EXT. SOC, XLI. 



