AMERICAN COLEOPTERA. 83 



f. 13. The anterior prolongation of the front is longer and narrower 

 at base, than in the other species. The antenna is represented iu 

 fig. 1. ' 



2. P. Behrensii. — Blackish-brown above, paler chestnut beneath, pro- 

 thorax much narrowed in front, hind angles feebly rounded; disc rather 

 strongly impressed in front, sparsely punctured, with a few larger punctures 

 intermixed in the depression, and a few hairs near the tip; sides and beneath 

 clothed with long hair as in the other species; elytra with distinct though not 

 deep punctures and striae; antennae with the 6th joint prolonged. Length .85 

 inch; 22 mm. 



J. — Body very robust ovate, convex, strongly dilated behind ; head concave, 

 coarsely punctured, anterior prolongation short, broad, with the front margin 

 feebly rounded; vertical horn short, broad, scarcely impressed at tip ; protho- 

 rax strongly, tolerably densely punctured, with a narrow smooth dorsal line; 

 tarsi short, one-third as long as the tibiae, 5th joint thick, as long as the three 

 preceding united. Length 1.20 inch; 30 mm. 



California, near San Francisco; two % and one % kindly loaned 

 me by Mr. Behrens. iVntenna % fig. 2 ; 9 fig. 3. 



3. p. liirticollis. — Blackish-brown above, chestnut beneath ; prothorax 

 much narrowed in front, hind angles feebly rounded ; disc rather strongly im- 

 pressed in front, tolerably densely punctured and with many long hairs pro- 

 ceeding from the punctures; sides and beneath with long hair; elytra rather 

 feebly punctured and striate; antennae with the 3d joint elongated, and 5th 

 lamellate, a little shorter than the 6th. Length .78 inch; 20 mm. 



9, Ovate, convex, less dilated than the other 9 above described; frontal 



prolongation broad, feebly emarginate, vertical horn short emarginate: 

 prothorax strongly and densely punctured, with a narrow smooth dorsal line; 

 elytra feebly punctured. Length 1.42 inch; 36 mm. 



Schaufuss, Kunquara otiosus, ii. 



California, two % . The 9 was given to me by Mr. A. Murray, 

 and has lost all the tarsi and the antennae. I refer it to this species 

 with doubt ; it is equally probable that it may belong to P. jimhriata. 

 Antennae % , fig. 4. 



4. p. Kdwardsii. — Blackish-brown, chestnut beneath; prothorax very 

 strongly narrowed in front, with the hind angles broadly rounded, disc retuse, 

 suddenly declivous in front and transversely impressed behind the elevation, 

 finely not densely punctured ; disc not pilose ; elytra with deep punctures and 

 striae; antennae with the 3d joint elongated, the 4th lamellate, one-half as long 

 as the 5th (which is probably about one-half as long as the 6th and following). 

 Length 1.05 inch; 26.5 mm. 



One specimen with broken antennae. It gives me great pleasure iu 

 dedicating this species to Mr. Henry Edwards, to recognize his kind- 

 ness on many occasions, and his zeal in developing the Coleopterous 

 fauna of the Pacific slope. 



