EUGNAMPTIDEA BOBUSTA sp. nov. 

 (Plate II, figs. 11, 12). 



Form stout. Head (probably unnaturally) sunken into the prothorax, the 

 front finely and very sparsely punctured. Beak fairly thick, tip broken, 

 upper surface with a well marked carina between two grooves. Eyes not 

 defined. Antenna pretty long, though the point of insertion is not surely 

 enough marked to allow of definite statements of relative length, club four 

 jointed. The five joints preceding the club are not in very good condition 

 but seem to be short, not much longer than wide, basal joints not well 

 enough preserved for description. Prothorax about four-fifths as long as 

 wide, not perceptibly narrowed anteriorly, disk deeply but not coarsely and 

 rather sparsely punctured, the punctuation becoming decidedly coarser and 

 closer laterally. Elytra striatopunctate, quite distinctly near the base but 

 obsoletely on the disk and towards the apex. Legs poorly preserved, front 

 pair (at least) long, the anterior femur strongly punctured and margined 

 by a bead on both edges. Length, from front margin of pronotum to 

 elytral tip, 3.20 mm. 



Described from one specimen. 



Rhynchitid characters are seen in the straight antennae with 

 narrow, loose club, the long legs and the elytral sculpture. None 

 of Scudder's species are much like this beetle, which approxi- 

 mates, in antennal structure, Eugnamptidea tertiaria from these 

 shales. That insect is smaller, differently sculptured and has 

 more slender antennae. 



APION FLOEISSANTENSIS sp. nov. 

 (Plate IL fig. 9). 



Form stout, moderately ventricose. Head of moderate size, fairly closely 

 and closely punctured, beak, measured from the front of the eye, about one- 

 fifth longer than the prothoracic dorsum, only very slightly curved, not ta- 

 pering, more roughly sculptured than the head with coarse punctures which 

 tend to become confluent longitudinally so as to form indistinct striae. 

 Antennae not defined. Eye roughly subcircular, lenses large. Prothorax 

 arched above, though not strongly, not far from twice as high as long, 

 punctuation coarse and close, more pronounced than that of the head. 

 Elytra with deep striae, about as wide as the interspaces, strial punctures 

 strong, rounded, separated by approximately their own diameters. Body 

 beneath coarsely and closely punctured, more weakly on the abdomen. 

 Legs fairly stout and not much elongate, femora not strongly thickened. 

 Length, from pronotal front margin to elytral apex, 1.55 mm. ; of head 

 and rostrum, .75 mm. 



Described from one specimen with counterpart. 



Its minute size easily distinguishes this weevil from any of the 

 other Florissant fossil species except A. pumilum. From that 

 insect, it differs in having a much shorter head and by the pro- 



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