PHEDIUS. 449 
b. Prothorax and the elytral interstices rather coarsely punctured. 
4. Phedius cylindricollis, (Tab. XX. fig. 20, ¢.) 
Black, shining, subglabrous. Head rather coarsely and somewhat closely punctured, a transverse space on the 
vertex impunctate, the transverse frontal depression deep; antenne fusco-ferruginous, rather stout ; 
prothorax long and cylindrical, not much broader than long, the sides parallel from the middle to the base 
and a little narrowed and rounded in front, the hind angles obtusely rectangular, the basal fovex indistinct, 
the base subtruncate, the disc longitudinally impressed in the middle behind, the surface rather coarsely 
and somewhat closely punctured ; scutellum sparsely punctured ; elytra with rows of rather coarse punctures 
placed upon fine shallow stris, the interstices flat and somewhat thickly punctured, the punctures deep and 
as coarse as those of the striz but (like those of the stris#) becoming finer towards the apex, the strie 
indistinct at the sides and beyond the middle; beneath sparsely punctured ; legs pubescent, piceous or 
ferruginous, the tarsi lighter. 
Length 7-83 millim. ; breadth 33-33 millim. ( 9.) 
Hab. Mexico, Guadalajara in Jalisco (Hége). 
Three examples, apparently all females. The thorax of one specimen has a deep 
rounded fovea on each side of the disc about the middle, and the base an emargination 
in front of the scutellum, but this is probably due to accidental circumstances. The 
long and cylindrical thorax, the coarsely and somewhat confusedly punctured elytra, 
and the rather shining surface are the chief characters of this species; the longer 
and much more sparsely punctured thorax distinguishes it from its nearest ally, 
P. obovatus. 
5. Phedius obovatus. 
Black or brownish-piceous, subopaque, the elytra slightly shining, subglabrous (when fresh thickly clothed 
with short pubescence). Head densely and rugulosely punctured, the punctures on the vertex here and 
there confluent, the epistoma more sparsely punctured, the transverse frontal depression deep; antenne 
fusco-ferruginous, moderately stout; prothorax short, transverse, the sides feebly rounded and about 
equally narrowed before and behind, the hind angles obtuse, the base subtruncate, the basal fovez 
obsolete, the disc unimpressed, the surface densely and rugulosely punctured, the punctures here and there 
longitudinally or obliquely confluent; scutellum somewhat thickly punctured ; elytra punctate-striate 
throughout, the punctures rather coarse and deep and closely placed upon shallow strie, the interstices 
flat and rather thickly punctured, the punctures fully as coarse as those of the strie ; beneath sparsely 
but coarsely (the sides of the venter more finely) punctured ; legs pubescent, piceous, the tarsi lighter. 
Length 63-73 millim.; breadth 25-33 millim. ( 2.) 
Hab. Muzxico, Guanajuato (Sallé), Aguas Calientes city (Hége). 
Three examples. One of these is immature and has the upper surface clothed with 
short pubescence, the other two being subglabrous. The punctures of the elytral 
strie are placed close together, and the striz in consequence are distinct from the 
equally coarsely punctured interstices. The coarsely punctured elytral interstices 
separate this species from all but P. cylindricollis; the thorax is more rugosely 
punctured than in P. mexicanus. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1888. 3 MM 
