1853.] 



285 



punctures, their tip is rufescent. The under side of the body and the feet are 

 rufous ; the metasternum has a large central black spot. 



It is very probable that the relation between the second joint of the antennae 

 and the following- ones should be considered as a generic character, and the ab- 

 sence of all sculpture on the upper surface would seem to indicate a genus dis- 

 tinct both from Colenis and Agaricophagus. Until more specimens occur, so 

 that a dissection can be made, it would be better to allow the species to rest in 

 the present genus. 



LioDES Latr. (emend. Schmidt.) 



1. L. globosa, hemispherica, nigro-picea, nitida, thorace subtilissime 

 punctulato, lateribus rotundatis, diaphanis, elytris punctulatis, punctis vix mai- 

 oribus seriatim positis, stria suturali postice profunda, antennarum basi tibiis 

 tarsisque piceis. Long. '12. 



Cyrtusa glohosa Le Conte, Agassiz' Lake Superior, 222. 

 Sault St. Marie, Michigan, under bark. 



2. L. po li t a, hemispherica, nigra nitida, thorace impunctato, lateribus ro- 

 tundato, elytris subtiliter punctato-striatis, interstitiis alternatim obsolete parce- 

 punctalis, abdomine, ore antennarifm basi pedibusque plceo-rufis. Long, -ll. 



One specimen. South Carolina, Dr. Zimmerman. Still more globose than the 

 preceding. The anterior tarsi are not dilated; the sutural stria as in all is deeply 

 impressed posteriorly. 



3. L. di so o 1 o r, hemispherica, nigra, nitida, thorace impunctato, lateribus 

 rotundatis, diaphanis, elytris profundius punctato-striatis, interstitiis alternatim 

 parce punctatis, antennarum basi pedibusque piceo-rufis. Long. 'll. 



Melsheimer, Proc. Acad. Nat. Sc. 2, 103. 



One specimen, Pennsylvania, Dr. Melsheimer. This species resembled very 

 much the preceding, but the rows of punctures on the elytra are larger ; the in- 

 terstitial punctures are very distinct, and the abdomen is brown only at the sides. 

 The head appears reddish in some lights ; the first joint of the anterior tarsi is 

 slightly dilated. This species seems subject to variation in color, Dr. Melshei- 

 mer's specimen is described as being 'rufo-testaceous beneath.' 



4. L. b a s al is , rotundata, convexa, nigra, nitida, thorace versus latera vix 

 punctulato, elytris basi rufis, parce punctulatis, punctis maioribus confusis 

 striatis, interstitiis alternatim 6- vel 7-punctatis, abdomine antennarumque basi 

 rufo-piceis. Long. '10. 



Pennsylvania, Dr. Melsheimer; New Jersey, Mr. Guex. The red color of the 

 base of the elytra extends from the epipleurae almost to the suture, its outline is 

 quite distinctly defined. 



5. L.dichroa, rotundato-ovalis, convexa nigra, nitida, ore antennarum basi 

 pedibus anticis, ventre elytrisque testaceis, his punctis confusis striatis, intersti- 

 tiis vix subtilissime punctulatis, alternatim 6- vel 7-punctatis, sutura margineque 

 nigricante ; thorace laevigato. Long. 'OO 10. 



One pair, Ann Arbor, Michigan ; the anterior tarsi of the female are 5-jointed. 



Agathidium Uliger. 

 A. Corpus globatile ; humeri rotundati. 



1. A. o ni SCO id e s , piceum, valde convexum, nitidum lasve, elytris stria 

 suturali nulla, antennis pedibusque rufo-testaceis. Long. '13. 



Beauvois, Ins. d'Afrique et d'Am. 160, pi. 6, fig. 2. 

 A. inceum Melsheimer, Proc. Acad. Nat. Sc, 2, 103, (1844.) 

 Pennsylvania, Dr. Melsheimer. The margins of the thorax are frequently ru- 

 fescent. There is an A. p ic eu m described by Erichson in 1845, the name of 

 which may be changed by any one who does not wish to adopt the synonymy of 

 this species as given above. 



2. A. exiguum, nigro-piceum, valde convexum, nitidum, thorace Isevi, 

 limbo diaphano, elytris obsolete parce punctulatis, stria suturali antice obsoleta^, 

 postice profunda ; antennis pedibusque rufis. Long. 'QS '08. 



Melsheimer, Proc. Acad. Nat. Sc, 2, 103. 



