188 NORTH AMERICAN MELANOPLI (ORTHOPTERA) 



fastigium very slightly broader than wide, deplanate declivent; frontal 

 costa very slightly narrower at dorsal extremity than just below, lateral 

 carinae fine but distinct, frontal costa narrowed and decidedly impressed at 

 and just below median ocellus, then rapidly subsiding into face. Eyes 

 normal, not conspicuously protuberant. Antennae moderately elongate. 

 Pronotum truncate cephalad and caudad, the latter margin showing the 

 barest trace of bilobation; disk feebly convex and smooth on prozona 

 and mesozona, with medio-longitudinal carina briefly indicated only 

 cephalad, very feebly subtectate on metazona to the decided medio-longi- 

 tudinal percurrent carina with surface thickly and regularly impresso- 

 punctate; transverse sulci prominent but not as deep as in quercus; lateral 

 lobes with dorsal length approximately one and one-quarter times greatest 

 depth. Prosternal spine with large base, then strongly constricted and 

 produced in a short slender apical portion with tip rounded. Tegmina 

 represented by small oval lateral pads, margin more convex ventro-distad 

 and distad than dorso-distad ; longitudinal veins fairly regular with 

 mediastine and discoidal the most prominent and humeral not decided or 

 nearer the latter than those above it, transverse veinlets numerous, promi- 

 nent and quite regular. Wings the merest rudiments, concealed by the 

 tegmina. Tympana large, broad, also covered by the tegmina. Ovipositor 

 valves of more normal type than in Appalachia Rehn and Rehn; dorsal 

 pair broad, with dorsal margins strongly sigmoid and dorsal surface 

 proximad deplanate and not abruptly cut off from the concave distal 

 portion. Limbs delicate and not robust. Caudal tibiae with ten or eleven 

 spines, both externally and internally. 



Tegmina and limbs burnt umber (dark brown), the body still darker; 

 caudal femora with merest traces of two very slightly paler chevron-shaped 

 transverse bands. Ventral surface of body brownish buff. Caudal femora 

 with ventral surface acajou red, paling internally. Caudal tibiae yellow 

 buff, with spines and spurs black tipped. 



Length of body 27.7, length of pronotum 5.8, greatest width of pronotal 

 disk (caudad) 4.8, length of tegmen 4., greatest tegminal width 1.9, least 

 (meso-proximal) distance between tegmina 3.2, length of caudal femur 11.9, 

 width of caudal femur 2.65 mm. 



Asemoplus sierranus new species (PI. XVI, figs. 3 to 5.) 



This species is closely related to Asemoplus montanus (Bru- 

 nei-) (PL XVI, figs. 1 and 2), in general appearance being de- 

 cidedly more similar to that species than to any other of the 

 genus. It differs in the normal and consequently less enlarged 

 head and pronotum, the much less broadly blunt apex of the 

 fastigium and much narrower frontal costa which extends well 

 below the median ocellus and is there moderately sulcate, the 

 absence of extensive strikingly pale pronotal markings and medio- 



