100 GEO. H. HORN, M. I). 



more slender to tip, third joint not quite as long as the next two, greenish in 'J, , 

 bronze in 9 ; head slightly convex and \vith two frontal tubercles in both sexes, 

 green and more densely punctate % , bronze and more coarsely punctate 9 ! 

 clypeus (151) with an oval emargination at middle ; thorax twice as wide as long, 

 sides regularly arcuate, disc convex, very coarsely and closely punctate and with 

 four callosities transversely placed (the outer indistinct) and a median posterior 

 smooth line ; elytra scarcely wider than the thorax, parallel, narrowed at apical 

 third, the margin very finely serrulate, the apices obtuse ; disc convex, the first 

 costa distinctly elevated from apex to middle, the outer costfe indistinct and in- 

 terrupted ; basal fovea distinct, the discal fovese scarcely visible ; body beneath 

 moi-e shining than above, not densely punctate, sparsely pubescent, the ventral 

 segments with indistinct lateral callosities ; last ventral segment with serrulate 

 border ; prosternum with a small lobe in front ; anterior femur with a very acute 

 tooth, serrulate on its outer edge. Length .28- .36 inch ; 7-9 mm. (Fig. 150.) 



Male. — Prosternum coarsely and closely punctate, sparsely pubescent ; anterior 

 tibia [ 154) feebly arcuate, stouter toward the tip, with a slight and short dilata- 

 tion near the apex ; middle tibia slightly arcuate, thickened at the extreme apex ; 

 posterior tibia straight ; last ventral (152) nearly semi-circularly emarginate. 



Female. — Prosternum coarsely not closely punctate ; anterior tibia slightly ar- 

 cuate, gradually stouter to the tip ; middle and posterior tibise straight ; last ven- 

 tral segment (153) oval and entire at apex, a slight sinuation each side limited by 

 the last serration of the margin ; last dorsal coarsely and densely punctured and 

 entire. 



In one specimen before me the body beneath is entirely green. As 

 a rule the punctures of the under side, particularly of the abdomen, 

 are much coarser and more distinct than in deserta. While there is 

 some little variation in scul])ture, the first or subsutural costa remains 

 distinct in its posterior half 



Occurs in California (Owen's Valley and northward) and Wash- 

 ington Territory. 



31. C deserta n. sp. — Subcylindrical, dark coppery bronze, feebly shining, 

 sparsely pubescent ; antennse slightly greenish, gradually more slender to tip, 

 the third joint as long as the next two ; front slightly convex, rather shining, 

 not densely punctured, an indistinct chevron above, sparsely pubescent and 

 greenish % ; clypeus (156) very broadly but not deeply emarginate; thorax 

 nearly twice as wide as long, sides rounded at apex and base, disc convex, veiy 

 coarsely and closely punctured with four callosities arranged in a transverse row 

 in front of the middle and a smooth median line jiosteriorly ; elytra scarcely 

 wider than the thorax, parallel, narrower at apical third, the margin very feebly 

 .serrulate, the apices obtuse, disc convex, the costie replaced by smoother lines, 

 basal fovea deep, two indistinct discal fovese, one on the second smooth line one- 

 third from base, the second one-third from apex between the first and second 

 smooth lines, surface rather coarsely and closely subgranulately punctured ; body 

 beneath more shining than above, very coarsely and closely punctate, the punc- 

 tures of the abdomen much finer and submuricate ; margin of last ventral seg- 

 ment distinctly serrulate ; prosternum with a very short lobe in front ; anterior 

 femur with a small acute tooth, serrulate on its distal edge. Length .35 inch ; 

 9 mm. (Fig. 155.) 



