of rm: uNTrr.li -i \n.s. |.",;! 



L2. A. p 1 a n a t us, piccus, lielvo-pubcscens, tli'iriicc latitadine longiore, lateribus antics lata ro- 

 tundatis, confertim punctato, angulis postici.s paulo productis, mm divergentibus, apice rotunda 

 elytris striis profundus, antice paulo panctatis, interstitiis omnino plania parce punctulatis, Mibtus 

 rufo-piceus, pedibus pallidioribus, antennis articulo ultimo non constricto. Long. '60. 



One specimen, New Jersey, Mr. Guex. This Bpeciea precisel) resembles in form V. 

 COnseDtaneus, and only dilfers li_\ the angles of the thorav IxiiiLJ still more rounded, and 

 the stria: of the elytra being less punctured, with entire!) tl.it interstices; the last joint <>i 

 the antennae does not appear constricted. 



13. A. cavifrons, rufo-testaceus, paulo pubescena, tboracc latitadine longiore, lateribas paral- 

 lels, antice vix rotundatis, confertim panctato, angolis postiois modice productis, acutis, elytria Btriis 

 punctatis interstitiis paulo convexis parco subtiliter panctatis, ai articulo ultimo constr 



Long. ••"). 



Athotu - Melsheimer, Froc. Acad. Nat. Sc. 2, L54. 



Pennsylvania and Georgia. The thorax of the female is a little more convex than thai 

 of the male, and the sides converge a little in front. The clypeus is nol more concave 

 than in the other species of this division, from all of which it is easily distinguished l>\ its 

 smaller Bize and less densely pubescent body, as well as by its bright r colour. 



Ciugmus Lee. 

 Frons parum convexa, antice depressa, non marginata, margine laterali obliqaa, ad apieem eztensa: 

 fossuhe antennales distantes, bene definite: labrum antice rotnndatnm, mandibular apice acu - 

 tataa: antenna valdc serratse, articulo 1"'° medioeri subconico, _ et 8 parvis, eeqaalibos, I -10 a qua- 

 libus triangularibus, 11"" ralde constricto, fire diviso: palpi articulo ultimo triangulari, acnto: pros- 

 ternum antice 1 ibatam, ]">-aice inucmnatuni, mucronc non inflexo, sutura oblique concava, antioe non 

 excavata: mesosternum non protuberans: coxae posticse intus fcrc Bensim paulo dilatatee, dent 

 terno magno acuto: tarsi filiformes pubesccntes, articulo 1"" Bequentibus duobus conianctia eequali, 

 2 — 4 Bensim breviorib . rsecedentibus _ sequali, unguiculis integris. 



I have formed this genus upon Aphanobius hepaticus Germ., which appears BuflScientl) 

 distinct from the type of the genus, \. infuscatus, on account of the declivous meso- 

 sternum, and shorter first joint of the- antenna?. The tooth at the internal part of the p 

 terior coxae is stronger and more acute, while the posterior margin of the plate is not un- 

 dulated, be in A. infuscatus, but regularly and very slightly curved; the pub* bc< nee of the 

 tarsi is uniform, without any tendency to form brushes as in \. infuscatus. The external 

 resemblance (barring size] is very great, but we have frequent examples in this familj ol 

 close external resemblance among species of most widelj distinct g< m ra. W ith regard 

 to the weight of the character derived from the mesosternum, thai \ull become evident, I 

 think, to any one who will observe the con tancy of the protuberant form, through a large 

 group ofsp ' ies, which carry in then- appearance the evidence of the distinctm si ol their 

 type. Adopting mch a principle of division, Aphanobius infuscatus will then form ihc 

 osculant ol the group with protuberant mesosternum with the present genus. 



1. C. hepaticus, obscure castaneus, den »race latitadine 



confertim panctato, subcylindri ibua antice paulo rotundatis, elyti 



striis punctatis interatitiis n punctatis el rug i . pi libo [ue rufis. L i • • 



/." >/■> Germar, I 



I . G / i ■ i 



