1853.] 985 
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 antennz 
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. 
Lioprs 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. °13. 
Cyriusa globosa Le Conte, Agassiz’? Lake Superior, 222. 
Sault St. Marie, Michigan, under bark. 
2. L. polita, hemispherica, nigra nitida, thorace impunctato, lateribus ro- 
tundato, elytris subtiliter punctato-striatis, interstitiis alternatim obsolete parce- 
punctatis, abdomine, ore antennarum basi pedibusque piceo-rufis. Long. :11. 
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. discolor, hemispherica, nigra, nitida, thorace impunctato, lateribus 
rotundatis, diaphanis, elytris profundius punctato-striatis, interstitiis alternatim 
parce punctatis, antennarum basi pedibusque piceo-rufis. Long. °11. 
Melsheimer, Proc. Acad. Nat. Se. 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. basalis, 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 antennarumgue basi 
rufo-piceis. Long. -10. 
Pennsylvania, Dr. Melsheimer; New Jersey, Mr. Guex. The red color of the 
base of the elytra extends from the epipleure 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 levigato. Long. -09—10. 
One pair, Ann Arbor, Michigan; the anterior tarsi of the female are 5-jointed. 
AcatTuipium Iliger. 
A. Corpus globatile ; humeri rotundati. 
1. A.oniscoides, piceum, valde convexum, nitidum leve, elytris stria 
suturali nulla, antennis pedibusque rufo-testaceis. Long. °13. 
Beauvois, Ins. d’Afrique et d’Am. 160, pl. 6, fig. 2. 
A. picewm Melsheimer, Proc. Acad. Nat. Sc., 2, 103, (1844.) 
Pennsylvania, Dr. Melsheimer. The margins of the thorax are frequently ru- 
fescent. There isan A. piceum 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 levi, 
jimbo diaphano, elytris obsolete parce punctulatis, stria suturali antice obsoleta, 
postice profunda; antennis pedibusque rufis. Long. :95—:08. 
Melsheimer, Proc. Acad. Nat. Sc., 2, 103. 
