AMEKIC'AN COLKOl'TKKA. 391 



Second ventral segment longer at the middle than the two following united, third 

 segment not narrowed externally, fully attaining the lateral mar- 

 gin ; femora dentate, not grooved for the reception of the tihiae. 

 PI. xiii, fig. 19a. 



Metasternum very short, elytra widest behind the middle A<*allo<los. 



Metasternum of moderate length, elytra not widened behind the middle. 



Coeliodes. 



CR A POX I US Lee. 



Beak somewhat stout, curved and j)un('tured, slio:litly widened 

 toward tlie apex, scrobes expanded po,steriorly, the ui)per margin 

 attaining the middle of the eye, antennae inserted at tlie middle ( S ) 

 or two-fiftlis from the base ( 9 )> slender, first joint stout, short, 

 second lonj^ and slender, and nearly equal in length to the three 

 following joints united, club abrupt, large, first joint occupying 

 more than one-half of its mass. Eyes oval, partially covered in 

 repose ; prothorax transver.se, strongly narrowed anteriorly, surface 

 uneven, (piadri-tuberculate, anterior pair of tubercles larger, obtuse, 

 posterior smaller, acute ; base bi.sinuate, produced in front of scutel, 

 latter very small, glabrous. Elytra suddenly wider than the pro- 

 thorax and wider than long, humeri protuberant ; sternal side-pieces 

 scarcely visible from above; prosternum long in front of the coxa?; 

 pectoral sulcus deep, prolonged to the end of the metasternum. Ab- 

 domen short, second ventral segment shorter than the two following 

 together, prolonged at the sides to the fourth segment, the third not 

 attaining the lateral margin ; sutures 3. and 4 deeply impressed, fifth 

 segment about as long as the first; pygidium with ill-defined longi- 

 tudiiuil furrow ; femora uot toothed, deeply grooved for the reception 

 of the tibije, latter flattened, acutely angulate near the base, suleate 

 along the external luargin for the reception of the tarsi, latter with 

 the third joint very broadly bilobed, fourth rather short, claws 

 armed with a slender tooth about half the length of the former. 



Form very robust, subtrapezoidal, coarsely sculptured. The only 

 species known nuiy readily be recognized by the above generic 

 characters. 



<'. iiiicqiisilis Say. PI. xii. fig. 1. — Dark piceous, beak and legs reddish 

 brown, above dt_Misely clothed with small, closely adherent chocolate colored scales, 

 intermixed with a fine, white, sc^ile-like pubescence arranged in spots and irreg- 

 ular, transverse lines on the elytra; underside nearly subglabrous, coarsely i)unc- 

 tured, each ])uncture bearing a white filiform scale; prothorax with entire dorsal 

 channel, another less sharply defined, oblique groove extends from the middle 

 of the base each side to between the posterior and anterior tubercles ; elytra with 



TRANS. AM. KNT. SOC. XXIII. SEPTEMBER, lb96. 



