NATURAL SCIENCES OF PHILADELPHIA. 3G9 



dcnte parv'o apicali inferno recurvo armatis, tibiis posticis elongatis, paulo cur- 

 vatis. Femina latet. 



One specimen, Illinois. This species has the form and almost the sculpture 

 of Hydnobius. It differs from all the other species in my collection by the 

 punctures of the intervals being as large and nearly as close as those of the 

 striae of the elytra, which thus appear thickly punctured in rows ; the trans- 

 verse ruga? are very fine, and not very distinct ; the carina of the mesoster- 

 nuni is finer than usual, but quite distinct. 



ANOGDUS nov. gen. 



Corpus late ovale, convexum, haud contractile; antenna? 10-articulata?, 

 articulis 1 2 crassiusculis, 3io triangulari, crassitie vixlongiore, 4 6 brevibus, 

 subtransversis, 7 10 valde transversis, clavam laxam magnam, articulis 1 6 

 paulo longiorem formantibus, 10 angustiore, apice obtuse rotundato : frons 

 apice et lateribus subtiliter marginatus. Mesosternum carinatum, metasternum 

 haud protuberans. Pedes breviusculi, crassiusculi ; femora incrassata ; tibia; 

 spinulosa? sensim dilatata?, calcaribus ina?qualibus terminates ; tarsi antici 5. 

 intermedin 5, postici 4-articulati, articulo lmo majore. 



The species upon which I have established this new genus resembles, in 

 form and sculpture, a broad A n i s o t o m a, but differs by the antenna? having a 

 much larger club, in which the eighth joint is wanting, and the last joint nar- 

 rower than the preceding. From Cyrtusait differs by the first joint of the 

 club being as wide as the two following, and by the mesosternum being 

 carinated. 



A. capitatus, late ovalis, convexus ferrugineus, nitidus, capite thor- 

 aceque sat dense subtiliter punctatis, hoc lateribus subtiliter marginatis fortiter 

 rotundatis, basi immarginata ; elytris striis dense subtiliter punctatis, inter- 

 stitiis sat dense transversim rugose punctulatis, alternis punctis parcis majori- 

 bus parum conspicuis, seriatim impressis. Long. 3 mm. 



Florida, one specimen. The interior outline of the hind thighs is nearly 

 straight, armed with a minute tooth at the middle, and the apical angle is 

 rounded and prominent. The specimen is probably a male. 



CYRTUSA Er. 



To this genus belongs Amphicyllis picipennis Lee, New Species, p. 

 25. I am indebted to Mr. Ulke for specimens, which enable a more careful 

 examination to be made than was possible with the unique type ; the hind 

 thighs of the male are armed beneath at the apex, with a large and broad 

 tooth, acute, but not recurved at the tip. It differs from C. e g e n a Lee, 

 not only by size, color and sculpture, but by the legs being less thickened. 

 and by the tarsi being nearly filiform, while in C. e g e n a they gradually 

 diminish from base to tip ; the body is also somewhat contractile in C. e g e n a, 

 as in L i o d e s, but scarcely so in C. p i c i p e n n i s. The eighth joint of 

 the antenna? is not visible in either species. 



COLENIS Er. 



InC. impunctata Lee. the joints of the tarsi are 5, 4, 4 ; the anten- 

 na? distinctly 11-jointed, with the seventh joint wider than the eighth, but 

 smaller than the 9th ; the eleventh is elongate, oval and somewhat acutely 

 pointed at tip. 



In C ? 1 a? v i s Lee, the tarsi are slender, with the joints 4, 3, 3 ; the mesos- 

 ternum is carinated ; the eighth joint of the antenna? is scarcely narrower than 

 the seventh ; the ninth and tenth are wider and larger, subtransverse ; eleventh 

 much larger oval, subacute at tip, and marked beyond the middle by a trans- 

 verse line ; the body is feebly contractile. These characters indicate a genus 

 intermediate between G o 1 e n i s, and Agaricophagus, for which the 

 name Aglyptus may be adopted ; it is distinguished from both genera by the 

 upper surface being smooth and impunctured, and by the front being finely 

 margined, both at the sides and anteriorly. 



1866.] 24 



