AMERICAN COLEOPTERA. 133 



Elytra with fine or very shallow strise 1 



Elytra deeply striate, striae smooth 12 



1. Tarsal claws serrate rather than pectinate 2* 



Tarsal claws pectinate 4 



2. Palpi stout; fourth hind tarsal joint emarginate pulcliclla. 



Palpi slender ; fourth hind tarsal joint emarginate 3 



3. Head and thorax black cyanipennis. 



Head black, thorax red riificollis. 



4. Head more or less striolate or coarsely punctured ... 5 



Head smooth or very feebly punctured 6 



5. Head striolate; elytra green marginicollis. 



Head coarsely punctured; elytra ornate lobulata. 



6. Elytra unicolored, green or olivaceous 7 



Elytra blackish or piceous sometimes with basal spot S 



7. Body above unicolored 9 



Body above bicolored 10 



9. Color greenish or bluish ; legs black viridis. 



Color olivaceous; legs piceo- testaceous or paler I>mnila. 



10. Head and thorax rufous ; abdomen black plcuritica. 



Head black, thorax rufous; abdomen pale vii*idi]>eiinis. 



8. Elytra ornate with pale spots oi'iiata. 



Elytra piceous collar is. 



12. Head longitudinally rugoso-striolate anal is. 



Head nearly smooth or very slightly rugulose 13 



13. Elytra sub-ovate broader behind fuscata. 



Elytra elongate parallel frigida. 



I*, pulchella, Dej. Spec, ii., p. 457; Chaud. Bull. Mosc. 1870, ii., p. 172. — 

 Head black, sparsely punctured. Antennae with three basal joints rufous, 

 outer joints nearly black. Thorax yellowish testaceous. Elytra yellowish 

 testaceous, usually paler than the thorax, finely striate and with a narrow 

 basal bluish band extending slightly on the humeri and somewhat broader at 

 the scutellum, a broad bluish band at two-thirds from the base, usually at- 

 taining the margin, with its anterior and posterior margins triundulate and 

 occasionally with a sutural extension uniting it with the basal band. Under 

 surface and legs pale yellowish testaceous, tarsi often piceous. Length .24 — 

 .28 inch ; 6—7 mm. 



The stout palpi and style of ornamentation will at once distinguish 

 this pretty species. 



Occurs from Canada to Texas. 



Li. cyailipeimis, Dej. Spec, v., p. 385; Chaud. loc. cit., p. 174. — Head and 

 thorax black. Antennas black, frequently with the basal joint somewhat paler. 

 Elytra blue, with a tinge of violet, surface finely striate, but more deeply than 

 pulchella. Body beneath and legs black. Length .24 inch ; 6 ram. 



* On an examination of the first three species the ungues will be found to 

 have the teeth directed very obliquely outward and short, so that the ungues 

 appear to be rather serrate than pectinate as in the other species. 



