THE CANADIAN ENTOMOLOGIST. 243 



punctured, the pubescence nearly wanting. Head testaceous in front, 

 labrum blackish ; occiput entirely green, sparsely, finely punctured and 

 shining. Antennae in great part piceous ; under side of body and legs 

 testaceous, varied with dark green or piceous. In the male the last 

 ventral is rather strongly and broadly emarginate at apex ; in the female 

 there is a small subcircular emargination, the sides of which nearly meet 

 behind. The inner division of the claws is as usual a little shorter and 

 more divergent in the female. Length, 6^-7^ mm. 



Monterey, California (Fenyes). 



The brilliant green colour, sparse pubescence, shining surface and 

 dark labrum are the distinguishing characteristics of this species. The 

 punctuation of the elytra is also evidently coarser than in flavoUmbata., 

 and much coarser than in /uteocincta, in both of which species the labrum 

 is pale, or at most slightly dusky, the head more densely punctate and dull, 

 the occipital plaga less extended, not as a rule involving the upper inner 

 margin of the eye. 



Trirhabda eri'odictyonis, n. sp. — Oblong, rather robust, not broader 

 behind, testaceous throughout, antennae dusky except at base, head with a 

 very small occipital plaga, which becomes linear in the female, and is 

 rarely entirely wanting. Prothorax with the three spots small, black; 

 elytra with greenish elongate humeral spot, which may extend the entire 

 length of the elytra, or may become almost obsolete. Head densely, 

 rather coarsely punctate, feebly shining; prothorax sparsely, feebly punctate 

 or nearly smooth, polished ; elytra densely, finely punctate. 



Male with broad but distinct apical ventral emargination ; female 

 with much narrower but relatively deeper emargination. Length, 73^-9 

 mm. 



This species occurs rather abundantly on a species of Eriodictyon 

 (" Verba Santa ■') at Pasadena, San Bernardino and elsewhere in Southern 

 California. 



It has been distributed quite generally as caduca, on the basis of an 

 erroneons identification made years ago for the writer. The latter species 

 is much smaller, very sparsely pubescent, more shining, less densely 

 punctate, the dark markings without metallic lustre, the occipital spot 

 much larger. It is known only from Owens Valley. Nigrohumeralis, 

 Schf , is still closer to the present species, but in it the punctuation is 

 somewhat coarser, and, like caduca, it is smaller and the dark markings 

 are not at all metallic, 



