40 
way upon the occiput ; sides of the foveola parallel "between the eyes, and bending 
abruptly inward toward the fastigium in front, continuous with the sides of frontal 
costa ; fastigium with a double indentation. Frontal costa slightly sulcate, subtri- 
carinate at the fastigium, widening at the ocellus, and extending nearly or quite to 
the clypeus, but not expanding below. In the male the width is about uniform 
throughout. Pronotum with the median carina subcristate, distinctly and deeply 
notched about the middle by the posterior sulcus; anterior portion irregularly 
arched, more elevated than the posterior portion, which has only the front part 
arched ; lateral carina? irregular and indistinct. The notch of the median carina is of 
the oblique type, more distinctly so in the male than in the female. Posterior lobe 
expanding rapidly from the posterior sulcus; nearly flat on the disk, which is more 
or less covered with elongate rugosities, more distinct and numerous in the female 
than in the male; posterior extremity obtuse-angled; anterior margin extended in a 
very obtuse angle upon the occiput. Tegmina extending about one-third their 
length beyond the abdomen, of medium width, sinuous, and obliquely excised at tip. 
Wings narrow, the length very nearly twice the width, and slightly undulate on the 
outer margin; the nervules unusually regular and straight. Posterior femora witl 
sharp and elevated carina? above and below. Antennae rather short, scarcely flat- 
tened, and very slightly acuminated at the tip. 
Color. — Female somewhat darker than the male ; face pale purplish, dotted with 
fuscous; occiput aud pronotum fuscous brown, the latter with a carneous stripe 
along each lateral carina, which connect at the anterior sulcus and fade out near the 
posterior extremity; the disk of the posterior lobe dark brown. Tegmina pale dirty 
yellow, slightly tinged with rufous, crossed by three irregular bands formed of dark 
fuscous spots, the middle one broadest and usually the best defined; apex with ir- 
regular cellular fuscous spots, those next the costal margin most distinct. Wings 
pellucid, with a narrow marginal, rather pale, fuscous band, commencing behind 
the subcostal area, where it is broadest, narrowing and fading toward the anal 
angle; the nerves and nervules, except in the apical portion of the subcostal area 
and in the fuscous band, pale yellow or white. Posterior femora crossed externally 
and internally by three oblique fuscous bands ; posterior tibia? pale yellow, spines 
tipped with black. 
o 
