1875.] 459 [Scudder. 



slight acute spine ; tegmina and wings excessively small in the only 

 species known. Ovipositor stout at base but not broad, tapering 

 throughout, very slightly upcurved on the apical half, not very sharply 

 pointed. 



13. Belocephalus subapterus. Brownish-yellow, perhaps 

 green irv life. Mandibles and lower edge of front black ; labruin and 

 palpi yellow ; the upper surface of the head and pronotum slightly 

 darker and bounded on either side by a faint slender yellowish line, 

 which runs from the upper edge of the sides of the vertical spine to 

 the back of the head, diverging regularly from the opposite line, 

 and continued parallel to it along the pronotum to the inner edge 

 of the tegmina; it is bordered interiorly on the vertex and the pro- 

 notum with blackish, which marks above the outer edges of the verti- 

 cal spine. This is about as long as the head, its basal half, as viewed 

 from above, equal, beyond tapering to a point which is slightly 

 hooked downward and black; the depending tooth is rather stout, 

 triquetral, black. Tegmina minute, padlike ; wings obsolescent. 

 Abdomen with a scarcely perceptible, interrupted, mediodorsal ca- 

 rina ; ovipositor about as long as the abdomen, deepening in color at 

 the tip. 



Length of body, 38.5 mm.; of vertical spine, 3.5 mm.; of tegmina, 

 4 mm.; of hind femora, 20,5 mm.; of ovipositor 19.5 mm. 2 ?. One 

 from N. E. Florida, the other from Florida (Wurdeman). 



This is figured by Mr. Glover in his unpublished plates (Orth. pi. 

 XVI, fig. 17). It is also described by Mr. Thomas (Bull. U. S. Geol. 

 Surv., II, 71) as Acanthacara acuta Scudd., but it is very different 

 from that species, besides being four times as large. 



14. Orchelimum nigripes. Green, with the usual markings 

 of the genus upon the upper surface of the head and pronotum; but 

 readily distinguishable from all other species by the legs, all the 

 tibia? and tarsi of which, as well as the apical fourth of the hind 

 femora are blackish, though the spines of the hind tibiae are pale at 

 the base. The wings when closed extend slightly beyond the teg- 

 mina, and are a little clouded about the tip ; the tegmina surpass a 

 little the hind femora. The ovipositor of the ? is rather larger than 

 in allied species, somewhat more curved, broadest in the middle and 

 tapering to a delicate point. 



Length of body, 18 mm.; of antennae, 80 mm.; of tegmina, 

 <$ 21 mm.; $ 25 mm.; of hind femora, <$, 16.5 mm.; $,19 mm.; of 

 ovipositor, 10.5 mm.; 1 <$ , 1 ?, Dallas, Texas, J. Boll. 



