i2o MEMOIRS ON THE COLEOPTERA 



base; intervals seven to four with the lines gradually decreasing, the 

 fourth also at base and the fifth with a longer basal line; posteriorly, 

 there is a short broad external fascia and a pale apical area; under 

 surface piceo-rufous, the legs pale flavo-testaceous; head smaller 

 than in the preceding subsection; three-fourths as wide as the pro- 

 thorax and as wide as an elytron, the eyes prominent; sulci moder- 

 ately narrow, deeper than in the preceding; antennae not very slen- 

 der, fusco-testaceous, the medial joints between two and three times 

 as long as wide; prothorax nearly one-half wider than long, almost 

 imperceptibly narrower at base than at apex ( 9 ) or distinctly so 

 (cf ), the sides subevenly and rather strongly rounded to the short 

 subparallel basal part, the angles right; margins broadly and con- 

 spicuously reflexed, especially in the male; impressions very feeble, 

 the stria extremely fine; foveae rather deep, sublinearly impressed, 

 the carina subequally long, distinct; elytra not quite one-half longer 

 than wide, parallel, obtuse at apex, a little less than one-half wider 

 than the prothorax, the striae rather fine, unimpressed, the punctures 

 distinct basally but traceable barely to the middle as a rule, the fovese 

 near basal and apical third ( 9 ) or more approximate (cf ). Length 

 (cf 9) 4.1-4.6 mm.; width 1.7-1.85 mm. California (Ytima Reser- 

 vation on the Colorado River). [Ochthedromus laticollis Lee.; 



Bemb. platy denim G. & H.] nubiculosum Chd. 



A Similar to the preceding but rather more elongate, the frontal 

 sulci a little broader and shallower, the prothorax relatively some- 

 what larger, though otherwise similar, the elytra fully one-half 

 longer than wide, with the strial punctures still more distinct an- 

 teriorly and easily traceable to the summit of the declivity. 

 Length (cf 9 ) 4.0-4.75 mm.; width 1.6-1.8 mm. A considerable 

 series, said by Mr. Dunn to have been taken at El Paso, Texas. 



daphnis n. subsp. 



Body oblong-suboval, moderately convex, viridi-aeneous and dull ante- 

 riorly, the elytra more shining, the pale lines strongly separated by 

 the black striae, having an anterior fascia, very broad at the margin, 

 extending upon the fourth interval, the third with a line behind the 

 anterior fovea and a long one before, extending to the base, the 

 fourth and fifth also pale at base; near posterior third there is an 

 irregular oblique fascia, extending to the third stria, broadly united 

 externally with the large apical pale area; under surface piceous, the 

 legs pale; head large, but little narrower than the prothorax, wider 

 than the apex of the latter, with very prominent eyes, the sulci sub- 

 parallel, broad and shallow; antennae rather long, slender, fuscous, 

 paler basally, the medial joints three times as long as wide; prothorax 

 much smaller than in the preceding, one-half wider than long, the 

 sides rather strongly, subevenly rounded to a short deep sinus at 

 base, only moderately reflexed, the angles right; impressions subob- 

 solete, the stria extremely fine; foveae moderate, deeply impressed 

 and sublinear, the carina strong, longer than the foveae; elytra par- 

 allel, rather more than one-half longer than wide, almost one-half 

 wider than the prothorax, very obtusely rounded at apex, the sides 

 rapidly rounding at the humeri; striae entire, rather coarse through- 



