pronounced mark of the same character. Length, 15.65 mm.; width, at 

 basal third, 6.30 mm. 



Described from one specimen collected by one of the expeditions under 

 Professor Cockerell, but without special designation of station. The type 

 is in the Museum of the University of Colorado. 



The generic reference is provisional. It is about the size of 

 the recent L. iilkei, but the punctuation is sparser and a little 

 more regular than that on any Lachnosterna with which I am 

 acquainted. 



SAPEEDA FLOEISSANTENSIS sp. nov. 

 (Plate IV, figs. 20, 21, 22, 23). 



The specimen is so much crushed that the general form is obscured, but 

 judging from the elytra it must have been somewhat less elongate than 

 the recent American ;S'. calcarata. Head not showing any details. Antennae 

 preserved in part, the basal joint thick and heavy but as the base is hidden 

 the relative length cannot be made out. Second joint very short, broader 

 than long, third evidently but not greatly longer than the fourth, the three 

 following subequal, none much enlarged apically nor hairy. Prothorax too 

 poor for description. Legs moderately slender, the tarsus showing well on 

 only one, which seems to belong to the middle pair. In this, the first and 

 last joints are subequal in length, the second and third joints much shorter, 

 the third moderately lobed. Elytron in good preservation, subparallel, 

 about three and two-thirds times as long as the basal width, sculpture a 

 coarse and close granulation or punctuation, heaviest just behind the base 

 and fading out rather rapidly (though not to complete smoothness) at 

 about the apical third. There is no visible color pattern. Length of 

 elytron, 11.00 mm. ; width across base, 3.00 mm. 



Described from one specimen, with counterpart, collected by Mr. Geo. 

 Wilson. 



Compared with the three Florissant fossil forms of more or 

 less similar size and relationships, this insect may be told from 

 Protoncideres primus by the coarse elytral sculpture; from 

 Saperda suhmersa by the lack of elytral band; while from 

 Parolamia rudis, which seems to have been similarly sculptured, 

 it separates by the smaller size and relatively more elongate 

 elytra. In general, the structural and sculptural characters 

 agree well \^itli Saperda. 



EHYNCHITES VULCAN sp. nov. 

 (Plate II, fig. 8). 



Form, in profile, rather elongate. Head almost entirely covered up by 

 a leg which is folded across it. Beak practically straight and equal, striate. 

 Eye not large, circular or nearly so. Antennae long, inserted about the 



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