123 



corner; the lower portion of the cheeks and the lower margin of the face; 

 and some dots on the margins of the frontal costa. On the pnmotum a broad, 

 pale stripe runs along each lateral carina, converging in front of the middle; 

 the margins of the posterior lobe are pale, joined interiorly by a black stripe; 

 the central space pale ; the sides marked with alternate stripes of pale and 

 fuscous. Elytra fuscous at the base, becoming transparent a little beyond 

 the middle, where the netted nervules suddenly cease ; a narrow, whitish line 

 along the angle: the lower tield has two sub-quadrate black spots separated 

 by an elongate, whitish spot. Wings transparent ; base greenish-yellow ; a 

 narrow, fuscous band across, the middle; apex pellucid, with a few fuscous dots 

 at the tip. Posterior femora ash-colored, with three black spots on the upper 

 margin of the outer face; base and a band on the inside black. Posterior 

 tibite with a broad, white ring near the base, rest blue ; tarsi yellow. ' Venter 

 and pectus white. 



Dimensions. — Length, 1 inch; elytra, 0.92 inch; posterior femora, 0.56 

 inch; posterior tibiae, 0.48 inch. 



Colorado, Wyoming, Southern Illinois (Thomas). 



<E. plattei, sp. uov 



Somewhat like CE. eucerata, but invariably larger. 



Head large; front of the occiput elevated; vertex broad, much deflexed; 

 median foveola sub-quadrate, transverse in the female, opening in front, con- 

 necting with the sulcus of the frontal costa ; frontal costa of moderate width, 

 sulcate throughout, expanding slightly at the ocellus. Eyes slightly oblong, 

 sub-globose, prominent. Antennae slender, passing the pronotum. Median 

 carina distinct, not prominent on the posterior lobe, slightly prominent on the 

 anterior lobes, notched twice; middle part very short; posterior incision about 

 the middle of the pronotum ; front margin slightly angled ; apical angle 

 slightly obtuse, pointed. Elytra and wings about as long as the body. 



Color (dried after immersion in alcohol).— Clay-yellow, varied with 

 brown and fuscous. Lower portion of the face, the cheeks, and lower margin 

 of the sides of the pronotum pale-yellowish; two or three rows of brown 

 dots on the occiput ; a broad stripe along the middle of the pronotum, brown. 

 The male generally has two obliqae, brownish stripes on the sides of the 

 head and pronotum, the upper one embracing the lower portion of the eye. 

 Elytra, witli the upper half and apical third, sprinkled with small fuscous 



