74 CASEY 



very coarsely punctate, partially greenish basally. Length 15. 7-16. 2 

 mm. ; width 5.4-5.9 mm. Texas (locality unrecorded) parva n. sp. 



Body nearly as in parva but larger and stouter and differing from any of 

 the preceding in the shining blue and coppery iridescence of the elytra, 

 parallel, convex; head rather small, the eyes convex and prom- 

 inent, brown in all specimens at hand, widely separated, the front 

 with strong confused cupreo-asneous rugae; antennae shining, sometimes 

 with faint greenish-black reflection, bluish toward base; prothorax 

 not quite twice as wide as long, widest well behind the middle, nearly 

 as in convexa, the median basal impression stronger and extending 

 further anteriorly, generally evanescent beyond the middle, the smooth 

 areas blue-black, the remainder aeneous; elytra nearly as in the pre- 

 ceding species but with much larger and more coalescent cupreous 

 areolae, which are more coarsely and densely punctate, slightly opaque 

 and with short, less conspicuous pubescence, deeper laterally, where 

 they produce a more rugose appearance; apices narrowly and ver)' 

 obhquely sinuato-truncate, the truncature sometimes difficult to trace; 

 under surface with the densely pubescent patches of the abdomen 

 much more finely and densely sculptured than in convexa or ocularis 

 but more nearly as in parva; legs bluish or bronzed, the femora, and 

 the tibiae less evidently, deeper blue apically. Length 19. 4-2 1.5 mm.; 

 width 7.0-8.0 mm. Northern Texas and Kansas. [=Dicerca wood- 

 housei Lee] vvoodhousei Lee. 



5 — Form oblong, stout, moderately convex, the pronotum much less strongly 

 so anteriorly and laterally than in the preceding group and more grad- 

 ually and strongly flattened throughout the width basally, but not 

 or scarcely impressed at the middle subbasally, the two ante-scutellar 

 punctures thereby rendered very obvious, blue-black, shining, the depres- 

 sions throughout brilliant viridi-asneous; head strongly, vermicularly 

 rugose and coarsely punctured, the eyes large and strongly convex, widely 

 separated, the antennae and legs as in convexa, bright violaceous-blue; 

 prothorax somewhat more than twice as wide as long, broadly angulate at 

 the sides, widest distinctly behind the middle, where the width is evidently 

 greater than at base, the converging sides nearly straight from angulation 

 to apex, feebly sinuate basally, the basal angles acute ; surface with coarse 

 aeneous punctures, sparse and unevenly distributed, becoming densely 

 and very irregularly aggregated laterally; elytra nearly as in convexa 

 but not so convex, the feeble obUque apical truncature variable, some- 

 times transverse; punctures strong, arranged in coarse impressed series 

 deeper laterally, the depressed areas brilliantly shining, densely, rather 

 finely punctate and moderately pubescent, very variable in extent, 

 generally isolated, sometimes larger and in great part subtransversely 

 confluent; sulcus of the first ventral abrupt and deep, evanescent near 

 the hind margin though in very variable degree, generally narrower, 

 deeper and longer (cJ*) or rapidly shallow with more posteriorly flaring 

 sides (9). Length 22.0-31.0 mm.; width 8.0-1 1.7 mm. Arizona. 



arizoniea n. sp. 



Form nearly as in "Ducrca divaricala^' but without elytral prolongation 



