140 GEOROE H. HORN, M. D. 



S. aequipunctatus, ii.sp. — Oblong oval, moderately convex, black, sub-opaque. 

 Head densely punctured. Thorax with sides moderately rounded, slightly 

 narrower in front, anterior angles rounded, surface very densely punctured 

 and rather more coarsely at the sides. Elj'tra densely and evenly punctured 

 and with a sutural stria extending from apex two-thirds to the base, and four 

 dorsal strife parallel and not arcuate at basal end, the inner being two-thirds 

 the length of the elytra the outer ones gradually longer, humeral stria obliter- 

 ated at humerus but distinct beyond. Prosternum transversely convex, and 

 with strife divergent in front terminating in a fossa. Meso- metasternum, abdo- 

 men and legs coarsely punctured, side pieces of sterna cribrate. Pygidiiim very 

 convex, coarsely and densely punctured. Anterior tibiae 6-denticulate. Length 

 (anterior margin of thorax to tip of suture) .14 inch; 3J ram. 



This species as the above noted characters exhibit should be placed 

 ill Gi-roup 6 (Lee. Proc. Acad. 1852, p. 40.) and in Group 2 of 

 Miirseul's System. It resembles pfinctatissimus, Er. in its sculpture 

 being however more elongate and less convex and differs from it as 

 well as our own species in having the inner dorsal stria straight and 

 not arcuate at basal end. Two of our species of this group have the 

 entire surface of the body rather densely punctured and without 

 smooth spaces, insertiis, Lee, and obductus, Lee, these have the inner 

 dorsal arched at base uniting with the sutural. The margin of the 

 thorax is not fimbriate. 



The specimens of the species have been received from Mr. Jas. 

 Behrens, collected near San Francisco and sent with a catalogue num- 

 ber 858. 



The two following species having been recently reported within our 

 faunal limits, short descriptions of each have been given that they may 

 be known if in the cabinets of any of our students. Full descriptions 

 with admirable figures may be found in the Monograph of Marseul. 



S. cubsecola, Mars. Monog. 1855, p. 467, pi. 18, fig. SB. — Similar in form to S. 

 fennsyloanicus, but less convex and with the sides of the elytra less rounded 

 and the sides of the elytra more convergent toward the apex. Head faintly 

 bronzed, moderately coarsely but not densely punctured, and more sparsely at 

 apex. Thorax distinctly bronzed, disc smooth, sides finely punctured, punc- 

 tures narrowly extending along the base. Elytra black, densely and rugosely 

 punctured, punctures becoming finer and substrigose at apex; seutellar region 

 less densely punctured, humeri and sides of elytra smoother ; elytral striiie al- 

 most entirely obliterated; sutural stria entire. Pygidium moderately convex 

 and with the propygidium rather densely and coarsely punctured. Prosternum 

 convex and with the strife ascending in front. Mesosternum distinctly punc- 

 tured. Metasternum smooth at middle, finely punctured at the sides and 

 coarsely at base. Length (apex of thorax to tip of suture) .20 inch; 5 mm. 



The striae of the elytra are indicated merely by the closer approxi- 

 mation of punctures, the first two attaining nearly the middle, the other 



