42 THE CANADIAN ENTOMOLOGIST. 



from about the middle, apices separately rounded and finely serrulate, 

 surface rather coarsely imbricate, disk a little flattened at middle, pubes- 

 cence very short, sparse and recurved, evenly distributed. Prosternum 

 rather densely punctuate and with short recurved pubescence, lobe trun- 

 cate and feebly emarginate ; intercoxal process rather broad and seemingly 

 obtuse at apex. Abdomen moderately punctate, last segment with a 

 small emargination at apex ; pygidium without projecting carina. Claws 

 deeply cleft, the apices of the inner portions nearly in contact. 



Length 9 mm.; width 2.35 mm. 



The type is a female from the Huachuca Mts. of Arizona, collected 

 and given me by Mr. Carl R. Coolidge. 



This species is at once separable from any of our previously described 

 forms by the combination of antennal and ungual character, no other 

 species with the serration of the antennse beginning with the fifth joint 

 having the long inflexed claw tooth. 

 Diphyllo stoma Fall. 



The discovery of a second species of this remarkable Lucanid genus 

 is, like the first, due to Mr. Ralph Hopping, of Kaweah, California. Of 

 the specimens sent Mr. Hopping writes : "The Lucanid seems to have 

 different habits ïxomfimbriata, flying about 10 a.m. and in the pines at 

 6,600 ft. elevation, whereas ^/nl?riûta seems to be a night flier at 1,000 ft. 

 A reference to the original description oi fimbriata shows that at least one 

 specimen of that species was taken in flight shortly after noon and it is 

 doubtful if this distinction is more than incidental ; the difference in alti- 

 tude however is probably of more significance. 



The new form agrees very closel} in all essentials and most details 

 \\\\\\ fimbriata and it is only necessary to refer the student to the descrip- 

 tion of the latter (Can. Ent., 1901, p. 289), and state the differences. 



D. nîgricollis. 



Form slightly narrower than mfinibriata, the prothorax a little smaller 

 and black, the elytra piceo-testaceous, '\n fimbriata dark brown or castan- 

 eous and concolorous throughout ; mandibular process less strongly 

 emarginate ; prothorax distinctly more finely and sparsely punctate, the 

 elytra similarly but less deeply sculptured than in fimbriata. Tarsi a 

 little longer and more slender, the joints more than three times as long as 

 wide, while m fimbriata they are less than three times as long as wide. 



Length 6^-8 mm. 



Described from ten examples — all ^ s — taken at Huckleberry 

 Mead)w, Fresno Co., California, July 15 and Aug. i ; elevation, 6,600 ft. 



