48 PROCEEDINGS OF Tin: amkrtcan ACADEMY. 



vertex, and that the antenna are generally much infuscated. Vertex 

 well rounded, Blightly ascending; frontal coata sparsely and irregularly 

 punctate a little Bhorter, especially in the female, than the infra- 



ocular portion of the genes. Pronotum with sharp and <li~tinct carinas, 

 the prozona generally impunctate except anteriorly and delicately, the 

 transverse sulci feeble, the principal sulcus angulate, especially in the 

 female, and situated distinctly behind the middle, the metazona dens< ly 

 and rather finely punctate. The fuscous portion of the tegmina invol 

 the front margin of the discoidal area, hut in the male leaves the distal 

 expanded half of the Bcapular area untouched, ami in one female the dis- 

 coidal area is sparsely punctate with fuscous ; they are usually about as 

 long as the hind femora, hut in the female arc sometime- no longer than 

 head and pronotum together. Hind femora very slender, at hast equal- 

 ling (9) or considerably surpassing (£) the abdomen ; hind tibiae red, 

 occasionally infuscated apically. 



Length of body, J, 18 mm., 9, 24 mm.; antenna*, <£, 9 mm., 9, 

 8.5 mm.; tegmina, J, 9.5 mm., 9i 9 mm.; hind femora, £ , 11 mm., 

 9 , 14.5 mm. 



15 J, '.» 9 . Mt. Wilson, Altadena, Gal., 2400', July 27, A. P. Morse. 



5. A New Genus of Stenobothri. 



The North American Stenobothri may be separated as follows : — 



a 1 . Antennae not apically clavate. 



6 1 . Face considerably oblique, straight or little rounded ; lateral foveolae of vertex 

 slender; lateral lobes of pronotum longer than or tully as long as deep 



c 1 . Fastigium with a distinct percurrent median carina ; antenna;, at least in 

 female, depressed and more or less expanded basal ly. 



d 1 . Antenna? much expanded basally, tapering, in the male as long as the 

 hind femora ; lateral carina; of pronotimi Bubparalh 1, the <li>k BUbrectangU- 

 lar ; presternum tuberculate, especially in the male; tegmina shorter than 



the abdomen Napaia McNeill 



il-. Antenna- feebly expanded basally, subfiliform, much shorter than the 

 hind femora; lateral carina; of pronotum Btrongly sinuate, the disk elepsydral ; 

 presternum not tuberculate; tegmina longer than the abdomen, 



//<■ , sidoti a gen. now 

 c-. FaBtigiom with no median carina, but at most a colored line, except some- 

 times in extreme anterior portion ; antenna' filiform, the basal joints neither 

 expanded nor greatly depressed in either sex ; disk of pronotum elepsydral. 



thrut Fi.-ch. 

 b-. Face little oblique, strongly rounded; lateral foveolae of vertex moderately 

 broad, never more than twice as long as broad ; lateral lobes of pronotum deeper 

 than long. • 



