868 ZOOLOGY— INSECTS. 



long as the eye, acute-angled, flat or very slightly convex above. Frontal 

 costa prominent and narrow between the eyes and slightly sulcate, fading 

 suddenly below the ocellus or bi'oadly expanding and becoming obsolete ; 

 lateral carina? indistinct and subparallel. 



Eyes oblong-ovate, subreniform, oblique. Antenna? large, filiform, 

 slightly depressed, and extending to the second abdominal segment ( ? ). 

 Pronotum subselliform ; front lobes rounded and subcylindrical ; the pos- 

 terior lobe distinctly tricarinate ; sides flat and slightly expanding posteriorly ; 

 posterior portion of the dorsum slightly elevated ; the intercostal spaces flat, 

 but slightly raised at the median carina ; the median carina is but an indis- 

 tinct line ; the three transverse impressions distinct, but not profound, the 

 posterior one placed slightly behind the middle ; the posterior margin reg- 

 ularly rounded, nearly semi-circular ; the posterior lateral margin curves 

 inward at tne humerus, but makes no angle ; the posterior lobe is distinctly 

 broader than the head. Elytra of moderate width ; lower (anterior) mar- 

 gin slightly arcuate ; wings rather narrow ; both extend slightly beyond 

 the abdomen. The abdomen comparatively enlarged and rather deep at 

 the base ; the valves of the ovipositor slender and acute. The body and 

 legs hairy. 



Color (after immersion in alcohol).— Dull greenish-yellow, showing 

 clearly that the original color was green, probably light pea-green, as 

 the closely allied species Acrolophitus Mrtipes. This - appears to have been 

 the uniform color of the insect, the elytra being unspotted ; there is a slight 

 rufous tinge on the posterior part of the pronotum and base of the elytra; 

 the apical portion of the latter is translucent. Wings pale yellow at the 

 base, probably a transparent greenish-yellow when living; a moderately 

 broad fuscous band across the disk ; apex transparent, with dark nerves. 

 Spines of the posterior tibia? very slightly or not at all tipped with black. 



9. — Length, 1.25 inches; elytra, 0.80 inch; posterior femora, 0.60 

 inch; posterior tibia?, 0.G3 inch; pronotum, 0.25 inch. 



Remarks. — This very interesting species, so far as I am aware, has been 

 found in no collections except those made by this expedition. I find it 

 marked as from Nevada, and, as it has been seen by no other collectors, I 

 presume it must have been taken in the extreme southwestern limit of the 



