SUBFAMILY III. COPIPHORINJE. 



515 



j. Length of hind femora, male, 15.2 19.4 mm.; male smaller, 

 less slender; tip of vertex less broadly rounded; lower 

 carinse of hind femora darker near bases of spines. 



240. PALUSTRIS. 



;;. Length of hind femora 22.525.7 mm.; male larger, form 



very slender; tip of vertex more broadly rounded; lower 



carinse of hind femora immaculate. 241. VELOX. 



oo. Fastigium of vertex not or but very slightly longer than wide, its 



apex broadly, evenly rounded, and lower surface with a black mark 



near tip (Fig. 169, k, I.) 



k. Ovipositor much longer than hind femora; form slender; vertex 

 slightly longer than wide, convex above (Fig. 169, k) ; tegmina 

 surpassing hind femora less than 11 mm. 242. RETUSUS. 



kk. Ovipositor but slightly if any longer than hind femora; form 

 more robust; vertex usually wider than long, almost flat above 

 (Fig. 169, ; tegmina surpassing hind femora 15 or more mm. 



243. TRIOICS. 



Fig. 170. Stridulating fields of male tegmen of Neoconocephalus. X 3- a, exilis- 

 canorus', b, lyristes; c, ensiger; d, caudellianus', e, palustris', f, retusus. (After R. & H.) 



234. NEOCONOCEPHALUS EXILISCANORUS (Davis), 1887, 57. Slightly Musical 

 Cone-head. 



Size large for the genus, form moderately robust. Pea-green tinged 

 with yellowish on head, pronotum and fore femora, or brown with tegmina 

 irregularly dotted with fuscous spots; the green individuals with a nar- 

 row yellowish line along the lateral carinse of pronotum, this absent on oc- 

 ciput but present on lateral margins of fastigium; also often with a short 

 and very narrow oblique yellowish line behind each eye; mandibles yel- 

 low; tarsi and apical joints of palpi more or less infuscated. Fastigium 

 very prominent, extending 5 7.5 mm. in front of eyes, subdepressed and 

 with a slight median furrow on basal half, gradually tapering from base 

 forward, its apical half curved slightly upward, the apex narrowly 

 rounded; lower basal tooth small, blunt. Pronotum subequal in length to 

 fore femora, of more than average breadth; lateral carinas evident but 

 dull, hind margin broadly rounded; lateral lobes flaring noticeably out- 

 ward rather than perpendicular as in most of the other species, their sur- 

 face slightly rugose. Tegmina reaching slightly beyond middle of ovi- 

 positor, their basal third rather broad, apical two-thirds tapering very 

 gradually to the rounded apex. Stridulating organ of male large, very 

 broad, the main vein long, moderately swollen (Fig. 170, a.) Wings equall- 

 ing the tegmina in length. Fore and middle femora short, stout, usually 

 armed beneath on front carina with a few very short spines. Hind femora 

 rather short, slender, armed beneath on each carina with 5 to 9 small but 

 sharp spines. Hind tibiae slightly shorter than the femora. Ovipositor 



