McNeill — revision of the truxalin^e of north America. 255 



This is a rare species which has been reported but a few times. 

 Walker refers certain specimens from North America to S. variegatus, 

 Sulz. It is possible that this determination was correct, but it is very 

 improbable, and I have referred his name to this species with great 

 doubt. It is possible that his specimen is Boopedou nignon, Thos. 



2. Mecostethus gracilis, Scud. 



Arcyptera gracilis, Scud., 1862. Can. Nat., VII, 286. 



Arcyptera gracilis, '$iQx\di., 1862. Jour. Bost. Soc. Nat. Hist., VII, 



463- 



Arcyptera gracilis, '$i.\.'$iVL{\\\\, \^(>^. Proc. Port. Soc. Nat. Hist., 

 I, 148. 



Arcyptera gracilis, Scud., 1874. Fin. Rept. Geol. Surv. N. H., I, 373. 



Arcyptera gracilis, Bruner, 1883. 3rd Rept. U. S. Ent. Com., 56. 



Arcyptera gracilis. Scud., 1893. 23rd Ann. Rept. Ent. Soc. Ont., 

 76, fig- 53- 



Arcyptera gracilis, Moxie, 1894. Psyche, VI f, 105. 



Mecostethus gracilis, Morse, 1896. Psyche, VII, 327, fig. 14. 



Hab. Maine, Red River (British .\merica), Nebraska, and Black 

 Hills (Dakota). The National Museum contains specimens from the 

 last mentioned locality collected by Mr. Bruner. 



3. Mecostethus platvpterus, Scud. 



Arcyptera platyptera, Scud., 1862. Jour. Bost. Soc. Nat. Hist. , VII, 



463- 



Steuobothriis platyptera, Bruner, 1883. 3rd Rept. Ent. Com., 56. 

 Stenobothrus platyptera, Morse, 1894. Psyche, VII, 105. 

 Mecostethus platyptera, Morse, 1 896. Psyche, VII, 32 7, figs. 1 5 , 15b. 

 Hab. New England. 

 This species has never been reported outside of New England. 



XXIII. BOOTETTIX, Bruner. Fig. 23. 



Scutellum of the vertex nearly horizontal, very shallowly sulcate, 

 with a delicate median carina, and slight though distinct raised walls 

 which meet at an acute angle in a very sharp point at the vertex. The 

 tempora are triangular, nearly vertical, and scarcely visible from above, 

 with the lower wall obsolete. The frontal costa is contracted for a 

 short distance below the vertex into a very narrow ridge scarcely wider 

 than the median carina of the pronotum This rapidly expands until 



