154 



slightly incurved at the humerus ; median carina distinct only on the anterior 

 and posterior lobes. Elytra about half the length of the abdomen, oblong- 

 ovate. Posterior femora about as long as the abdomen. Prosternal spine 

 thick, obtuse, and transverse. Cerci slender; sub-anal plate somewhat 

 pointed ; the apical margin entire. 



Color. — Brown, varied with white. Face cinereous. Occiput and disk 

 of tlie pronotum dark-brown, mottled with light and dark shades, except the 

 posterior lobe, which is brown. Elytra brown ; lower half very dark. Each 

 side there is a dark spot or broad line reaching from the eye to the 

 third incision of the pronotum ; an oblique, white spot above the posterior 

 coxas. Posterior femora with three white bands, the one nearest the apex 

 much tlie smallest; the middle dark band bends abruptly forward in the 

 middle of the disk. Abdomen pale, mottled with brown. Antennae pale at 

 base, rest rufous. 



Female. — Pronotum uniform dark-brown, except the spot on the side. 

 Elytra extend over but two segments. 



Dimensions. — 9 Length, 0.85 inch; elytra, 0.20 inch; hind femora, 0.40 

 inch; hind tibias, 0.32 inch. $ Length, 56 inch; elytra, 0.18 inch; hind 

 femora, 0.37 inch. 



Pike's Peak, Colorado (Dodge). 



PL,AT\PMYMA, Fii^ch. 



Body small. Head short, slightly oblique; vertex narrow between the 

 eyes, carinated, sub-deflexed in front, sub-foveolate, margins obtuse; frontal 

 costa and lateral carinas distinct. Eyes large, sub-ovate. Antennge short, not 

 equaling the head and pronotum. Pronotum longer than wide, sub-truncate 

 in front, hind border rounded ; median carina sub-distinct ; lateral carinas 

 sub-distinct, obtusely rounded; the three transverse impressed lines distinct 

 in the male, undulate ; lateral lobes suddenly deflexed, inferior margin obtuse- 

 angled in the middle ; besides the two impressed lines, which descend to the 

 side, there is another near the anterior margin. The prosternal spine singu- 

 larly broad, cuneiform, truncate or sub-truncate at the apex; tlie pectus 

 broader than the head. Elytra abbreviated ; wings none or minute. The 

 four anterior femora swollen; posterior femora short, much enlarged near the 

 base ; pulvilli large. Abdomen carinated above. 



