524 bulletin: museum of comparative zoology. 



CoRYMBiTES PRiMiTivus Wickham. 



Described in American journal of science, 1908, ser. 4, 26, p. 77, 

 fig. 2. It is a large species, about 22 mm. in length, and seems not 

 to have been particularly rare. The type is in the Peabody Museum 

 of Yale University and was found at Station 14, Florissant, Colo., 

 by G. N. Rohwer. None are in the collections of the Museum of 

 Comparative Zoology, but I have a good example, with counterpart, 

 and the prothorax of another from the Wilson Ranch. 



CORYMBITES GRANULICOLLIS Wicldiam. 



This was described in the same article as the preceding. It is still 

 larger, 24 mm. long, and is the most striking of all the Florissant 

 Elateridae as far as size is concerned. The type is with the Peabody 

 Museum, at Yale University. I have a very good specimen obtained 

 at Florissant from a local collector who claimed to have found it in 

 the railroad cut that runs through the Corixa bed. I doubt the 

 accuracy of his statement. The original locality was Station 14, 

 which has yielded many beautiful insects of various families. 



CORYMBITES SUBMERSUS, Sp. UOV. 



Plate 7, fig. 1-3. 



Form fairly elongate. Head moderately coarsely punctured on the 

 front, vertex becoming only faintly sculptured. Antennae broken, 

 but enough remains to show that the second joint is shorter than the 

 third and, judging from the portions preserved, the organ, when com- 

 plete, reached slightly beyond the points of the prothoracic hind 

 angles. The antennal serrations are faint. Mandibles a little promi- 

 nent. Prothorax short, narrow anteriorly, broadest across the base, 

 the sides arcuate near the front angles, which are obtuse, but becoming 

 nearly straight to the hind angles which are long, sharp, divergent, 

 and carinate. The sculptiu"e of the pronotum consists of an extremely 

 fine punctuation, with rather sparse pubescence. There is a fine 

 lateral marginal bead the full length of each side. Scutellum oblong. 

 Elytra striate, the striae with fine, deep, rounded or somewhat elon- 



