14i Widckam — Fossil Beetles from the Sangamon Peat. 



margins of the eye meeting nearly at right angles. Prosternum 

 alutaceous, about like the head in minute sculpture, a narrow 

 band of small punctures just behind the front margin becoming 

 transverse rugosities in the angles, a similar but less pronounced 

 band just in front of the prothoracic hind margin and a few 

 scattered points on the disk. On the side which shows best, 

 the lateral pronotal edge is beaded and very slightly refiexed. 

 The pronotum as a whole is evidently rather strongly narrowed 

 anteriorly, the margins nearly regularly but feebly arcuate. 

 The front angles are sharp, strongly advanced, as shown by 

 one which is nearly entire and the other which is somewhat 

 more broken. The hind angles are not well uncovered but 

 seem to be obtuse and perhaps a little rounded. Elytra alu- 

 taceous, with moderately strong punctures arranged in irreg- 

 ular longitudinal double series and a few inconspicuous scattered 

 punctures in addition, marginal bead strong. Length of pro- 

 notum 1*45'''°' ; of elytron (not quite entire at tip) 4* 60"^°" ; width 

 of pronotum at broadest part, S^S"""" ; of elytron, not determi- 

 nable on account of curling. 



Six specimens are referred to this species, which I have 

 named after Professor T. E. Savage. In the features shown, 

 A. savagei is very much like the recent A. seriatus Say, com- 

 mon in the northern United States and in Canada. However, 

 comparison of the present species with specimens of A. seriatios 

 from the White Mountains and ISTewfoundland shows the 

 fossil to be smaller, more strongly alutaceous and with deeper 

 ely tral serial punctures. Scudder has described A. perditits^ 

 fossil in the Scarborough beds, but calls particular attention to 

 the lack of serial punctuation. Species of this genus are 

 known from the Tertiary deposits of both continents and seven 

 have been recorded from the European Pleistocene in addition 

 to one from the Cambridge Peat. Today, Agabus is found 

 commonly in swamp land, often burrowing in damp spots out- 

 side of the pools themselves. 



Agabus pr^^lugens new species. 



The type is an elytron ver}^ similar to that of Colorado spec- 

 imens of the recent A. liigens Lee, in my collection. It is of 

 a deep black color, moderately shining, finely but very dis- 

 tinctly alutaceous, the rows of serial punctures double, quite 

 deep but not large. The extreme apex of the elytron is broken 

 off, but the remaining fragment is 6*40™"^ in length. It differs 

 from modern A. lugens in the entire lack of brassy reflections 

 and in the texture of the surface sculpture. Four specimens 

 are assigned here, all poor except the type. 



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