PLATYNIN.E 107 



(cf 9) 9.0-9.5 mm.; width 3.5-4.0 mm. California (southern), — 



Dunn sybariticum n. sp. 



10 — Prothorax as wide as the elytra or but just visibly narrower 11 



Prothorax sensibly narrower than the elytra 13 



II — Pronotum punctured and transversely impressed behind. Body 

 elongate, blackish viridi-seneous; prothorax rounded, with narrowly 

 reflexed margins, the basal fovese punctulate, transversely impressed 

 posteriorly; elytra not at all wider than the prothorax, the striae 

 deep, impunctate; intervals slightly convex, the third with four or 

 five punctures. Length 8 mm. Jasper House, Rocky Mts. 



crassicolle Lee. 



Pronotum not punctured or transversely impressed at base 12 



12 — Body parallel, somewhat convex, polished, cupreo-eeneous, slightly 

 greenish at the base of the head; under surface greenish-black, the 

 legs deep black throughout; head three-fifths as wide as the pro- 

 thorax, not longer than wide, with large and moderately prominent 

 eyes, the impressions short, wide and faint; palpi and antennae 

 black, the third antennal joint distinctly longer than the fourth; 

 prothorax a fourth wider than long, the sides rounded and finely 

 reflexed, thicker and more converging basally, the angles broadly 

 rounded; base much narrower than the apex, thickened medially; 

 impressions obsolete, the stria distinct, not quite entire; foveae 

 large, oval, impressed, rather deep, not punctate; elytra two-thirds 

 longer than wide, scarcely visibly wider than the prothorax, feebly 

 inflated behind, the apex gradually broadly rounded, the sinus long 

 and very faint; surface with numerous small indentations, probably 

 accidental in the type; striae not very fine, grooved, smooth; in- 

 tervals flat, the third with four punctures; anterior male tarsi 

 rather strongly dilated. Length (cf) 8.2 mm.; width 3.0 mm. 



Utah (Douglas) longulum n. sp. 



Body parallel, convex, polished and bright greenish aeneo-cupreous; 

 elytra cupreous and less shining in the female; under surface and 

 legs as in the preceding; head slightly elongate, with well developed 

 and not very prominent eyes, scarcely three-fifths as wide as the 

 prothorax, the impressions very small and almost obsolete; palpi 

 black; antennae black throughout, only a little longer than the head 

 and prothorax, the third and fourth joints subequal; prothorax 

 transverse, fully two-fifths wider than long; sides as in the preceding; 

 base wider, not thickened medially, obliquely rounded at the sides 

 and about as wide as the sinuate apex; basal angles very broadly, 

 evenly rounded, the thickened margin bearing the setigerous punc- 

 ture not so inwardly prolonged at base as in longulum; surface 

 similar and with feeble transverse rugulae, but with the foveae much 

 shallower and feebly rugulose though not visibly punctate; surface 

 at the sides more deplanate toward the reflexed edge; elytra long, 

 fully two-thirds longer than wide and very slightly wider than the 

 prothorax, parallel, not at all inflated posteriorly, the apex more 

 rapidly and obtusely rounded, the oblique sinus not more than 

 straight, the striae deep, abruptly grooved, impunctate; intervals 



