22 NATURAL HISTORY BULLETIN 



as can be made out lead to the above determiuation. The genus 

 is a very large one and is well distributed. 



CicoNES CUtrt. 



C. OBLONGOPUXCTATA n. sp. (Plate III, Figs. 6, 7.) Form a little more 

 elongate than in the recent C. marginalis. Head moderately large, front 

 with low, irregular granulations, more pronounced in the median area, 

 antennae, judging from that on the left, which is a little better preserved, 

 with rather slender stem, of which the joints are hardly definable with 

 certainty, and a rounded solid club. Prothorax a little less than one and 

 a half times as broad as long, sides regularly arcuate, serrate, base and 

 apex nearly equal, front angles prominent, surface granulate, more coarsely 

 and closely on the disk, a distinct transverse sub-basal line. Elytra with 

 regular rows of transverse punctures, these rows extending to the tip though 

 not so shown on the figure since the imperfect preservation of the apical 

 portion does not admit of their accurate delineation. Under surface coarsely 

 sculptured. Legs short. Length, 3.60 mm. 



This beetle, undoubtedly a Colydiid, agrees well with Cicones 

 in the (apparently) open front coxal cavities, the antennal 

 structure, the presence of a deep, well-defined antennal groove 

 along the edge of the eye, the proportions of the abdominal 

 segments and the sculpture of the upper surface. The only 

 possible basis of separation would be on the apparent lack, in 

 the fossil, of elytral setae. However, I do not feel justified in 

 erecting a new genus upon so uncertain a foundation. The two 

 modern North American species of Cicones are found upon the 

 Atlantic slope. 



Mycetophagus Hellw. 



M. wiLLiSTOXi u. sp. (Plate IV, Figs. 6, 7, 8.) Form only moderately 

 elongate, subparallel. Head, as preserved, sunken well into the prothorax, 

 eyes not defined. Antennae short, gradually clavate, the basal joints not 

 distinguishable, median joints small, transverse, club, at its widest part, 

 three times as broad as the sub-basal portion of the antenna, last joint 

 pointed at apex. Prothorax nearly twice as broad as long, apex not much 

 narrowed, sides arcuate, more strongly in front and with the appearance of 

 a marginal bead. Entire thoracic disk finely, sparsely, but distinctly punc- 

 tured. Scutellum small, transverse. Elytra, at base, about as broad as the 

 prothorax, conjointly rounded at tip, each elytron about two and a half 

 times as long as broad. Sculpture of fine punctures, arranged in stria, with 

 a few other punctures of similar size scattered in the interstices. Legs, as 

 far as shown, moderate, roughened above, possibly from hair impressions. 

 Metasternum punctured, abdominal segments finely alutaceous. Length, 

 3.40 mm. Width, across the middle of elytra, 2.00 mm. 



