68 [April, 



most parallel behind ; margin behind the middle with a yellow spot. Elytra 

 less convex at the base than in A. pulchella, with rows of large points, becom- 

 ing striae behind the middle ; interstices with a single series of small distant 

 punctures ; the ordinary yellow bands are more numerous, and those before the 

 middle are confluent, so oidy the suture, a large humeral spot and a transverse 

 spot one fourth way from the base, remain bronzed. The two posterior fasciffi 

 are oblique ; the anterior one of them includes a small marginal spot ; the tip is 

 yellow. Beneath immaculate, bronzed, punctured. Varies with the anterior spot 

 of the elytra large and confluent with the suture. 



12. Dicerca Woodhousii, aenea, nitida, chalybeo-variegata, tho- 

 race cribratim punctato, brevi, lateribus valde rotundatis, antrorsum angustato, 

 angulis posticis rectis, elytris apice integris, seriatim crenatis, maculis irregu- 

 laribus opacis transversis profunde impressis. Long. "72 '97. 



I take great pleasure in dedicating this fine species, to the enterprising travel- 

 ler to whom we owe its discovery. 



Body coppery-bronze, varied with bluish reflections, moderately stout and 

 convex ; head strongly punctured, with three faint confluent elevated lines on 

 the front, labrum green ; thorax cribrate, more than twice as broad as long, nar- 

 rowed in front, very strongly rounded on the sides, narrowed a little towards 

 the posterior angles, which are rectangular and sharp. Elytra with rows of 

 large points, and with numerous deep impressed subconfluent spaces, which are 

 opake, densely punctured and finely pubescent ; tip entire. Legs green bron- 

 zed, knees, tip of the tibiae, and tarsi steel blue. Tip of the abdomen of the 

 male very slightly truncate ; of the female rounded. 



13. Pristilophus puncticollis, niger, nitidus, thorace antrorsum 

 subangustato, lateribus confertim, disco minus dense punctato, elytris crenato- 

 striatis, interstitiis paulo convexis, distinctius punctulatis. Long. -75 -9 



This species is tolerably abundant in every part of Missouri Territory. It is 

 closely allied to P. m o r i o Germ. Zeitsch. 4, 85, but the elytral strias are not so 

 deep, and the interstices are but very slightly convex. Head strongly punctur- 

 ed. Thorax longer than wide, somewhat narrowed in front, slightly rounded on 

 the sides, which are strongly margined ; disc moderately punctured, sides very 

 densely punctured, scarcely impressed towards the anterior angles, posterior 

 angles slightly diverging. Elytra as wide as the thorax, striae punctured, not 

 deeply impressed, intertices scarcely convex, finely and irregularly punctured. 



14. Arhopalus charus, Lee. Journ. Ac. Nat. Sci. 2d ser. 2, 17. 

 Among those brought by Dr. Woodhouse is a variety, in which the yellow tip 

 of the elytra is much larger, inclosing a black spot. 



The Committee to whicli was referred a paper by Prof. Baircl and 

 Mr. Charles Girard on the characteristics of some New Reptiles in the 

 Museum of the Smithsonian Institution, reported in favor of publication 

 in the Proceedings. 



Characteristics of some New Reptiles in the Musenvi of the Smithsonian 



Institution. 



By Spencer F. Baird and Charles Girard. 



Full descriptions and figures of these species will shortly appear in Capt. 

 Stansbury's Report to Congress on the great Salt Lake (Utah.) 



SiREDON LICHENOIDES, B, Body uniform blackish brown, covered all over 

 with licheniform patches of grayish yellow ; snout rounded ; tail compressed, 

 and lanceolated ; toes broad and short. Caught by R. H. Kern, Esq., in a lake 

 at the head of Santa Fe Creek in New Mexico. 



