344 FIELD MUSEUM OF NATURAL HISTORY ZOOLOGY, VOL. VII. 



the punctures, remaining intervals equal in width to the punctures; 

 intervals convex, with two rows of fine punctures from each of which, 

 two hairs, a long and a short one, arise. Body beneath very sparsely 

 pubescent; mesosternum coarsely and closely, metasternum rather 

 coarsely and very sparsely punctate; abdomen finely, very densely 

 punctate. Legs roughly sculptured and sparsely pubescent. Length 

 5.5-7 millim. 



Female. Fifth ventral segment broadly but very feebly arcuate- 

 emarginate; sixth ventral short, broadly rounded. Last dorsal short, 

 identical in size and shape with last ventral, but with a deep foveate 

 impression at middle of apex. (PI. VI. figs. 3, 4.) 



By the structure of the antennae this species belongs near uni- 

 formis Schaeffer, from which it differs in having the thorax more 

 finely punctured, the pubescence finer, sides of elytra parallel-, the 

 intervals distinctly punctate and not rugose near sides and the quite 

 distinct coloration. Also allied to pallida Schaeffer, but differing 

 from that species in having the surface more densely pubescent, the 

 eyes less prominent, the thorax more strongly constricted before the 

 middle, and many other details including coloration. 



Baboquivaria Mts. , Arizona. Dr. F. H. Snow. Two females. 

 Types in collection of the author and in collection Kansas State 

 University. 



Cymatodera tuta sp. nov. 



Pale yellowish, head and thorax very slightly darker, the latter 

 somewhat infuscate at apex; elytra pale yellowish, with an irregular 

 fuscous maculation or incomplete fascia at apical two-fifths ; shining ; 

 very sparsely clothed with short, pale pubescence. Antennae dark 

 brown, rather stout, extending to base of elytra ; second joint scarcely 

 two-thirds as long as the third; joints three to ten of equal width but 

 becoming gradually shorter towards apex; eleventh one-third longer 

 than tenth, apex acute. Head rather finely and sparsely punctate; 

 front between the eyes with two large depressions; eyes rather promi- 

 nent. Thorax one-fourth longer than wide, feebly constricted sub- 

 apically, very strongly compressed behind the middle; surface very 

 finely and sparsely punctate; ante-scutellar impression small but 

 distinct. Elytra parallel, at base less than twice as wide as thorax; 

 humeral angles obtuse; apices conjointly rounded; disk rather flat; 

 striate with coarse, perforate punctures which become finer towards 

 the apex and which are entirely obliterated at apical two-fifths; the 

 lateral rows of punctures slightly longer; punctures of three sutural 



