80 rnocEEDiyos of the national museem. voi„xx. 



and ftM'bly conipiesst'd basally, sojircely incurved; int'racercal ])lato as 

 loii^' as tlie snpraanal by the apical juoloii^ati >n of the narrowiiiff i)late. 



Lenf;th of body, male, 17 mm.; unteiiuae, C mm.; tegmina, 15 mm.; 

 bind femora, 1>.2.~) mm. 



One male. Mohave, Arizona, VVickham (L. P>iuner). 



In details of structure this species closely resembles Ac. arizoncnHis, 

 but is remarkable for its cojupressed form jind its large and prominent 

 eyes, in wbich points it exceeds even that species. 



19. BRADYNOTES. 

 (/i^;<r(5f'i'&j, to loiter. ) 

 BruiJynoteH Scudder, ("an. Ent.. XII (1S80). p. 7»). 



Body stout, eomi)act, heav\v, v.enerally. and especially in the female, 

 very broad at the metatliorax. Head stout, dightly broader below 

 tban above, the gcnae full: eyes separated by a wide sj>ace, wider aud 

 generally much wider than the broad frontal eosta: (rontwell rountled. 

 vprtical, the frontal costa prominent, broad, and generally soinewhat 

 sulcate, at least above; antennae slender for such bulky insects, equal, 

 shorter and generally much shorter than the hind femora. Thorax very 

 stout, the pronotum very short, not covering the whole of the nieso 

 notum, truncate at either extremity, the metazona only about half as 

 long as the prozona aiul rugulose, while theprozona is smooth; lateral 

 lobes sometimes separated from the dorsum by distinct rugae. Pro 

 sternal spine very niuch abbreviated, becoming in the female a mere 

 LiUnt tubercle, and in the male very short and conical; mesostethiuni 

 and nietastethium together, in both sexes, but |>articularly in the female, 

 no longer or scarcely longer than broad; the interspace between the 

 niesosternal lobes wide in both sexes, but showing a remarkable degree 

 of variation quite unknown in any other ot the genera of Melanopli: 

 the metasternal lobes distant, sometimes very distant, iu the female, 

 ai)i)roxiniate or moderately distant in the male. Tegmiua and wings 

 altogether wanting. Fore and middle femora of male tumid; hnid 

 femora (excepting iu />. hi.spida) rather short, moderately stout, rea-h- 

 ing beyond the abdomen in the male, but generally not in the female, 

 the upper carina smooth. Terminal abdominal Joints of the female 

 short, with slightly exserted ovipositor, making the tip blunt, as in 

 Oedaleonotus and Aeoloplus, but perhai)s to a greater degree; abdo- 

 men of male apically clavate, ui>turned, the subgenital plate long and 

 tumid, without apical tubercle; furcula absent or (in one species) rep- 

 resented by feeble lobes: cerci simple, conical, straight. 



B. ohrsn (Thomas) is the type. 



This somewhat remarkable genus is, .so far as known, confined to the 

 extreme northw estern Fnited States, but will probably be found also 

 in British Columbia. It extends from the Pacific to Montana and 

 Wyoming, and has so far been reported only north of the latitude of 



