90 GEO. H. HORN, M. D. 



l)iinctate than the thorax ; prosternal jilati' narrower in front with a slight ele- 

 vated line each side; metasternuni sparsely punctured at the sides, the mesocoxal 

 line joining the suture near middle of its length. Abdomen piceous, paler at 

 apex, composed of six segments; metacoxal line joining the first suture. Legs 

 yellow. Length .Ofi inch.; 1.5 mm. PI. I, fig. 1. 



Resembles mynntdoii, but more oblong, less punctate and with 

 sides of thorax yellow. 



LeConte notes a variety in which the spots are confluent. 

 Hah. — Enterprise, Cai)ron and Biscayne, Fla. ; Opelousas, La. 



^». xailtlist«i|>is Muls. — Oval, very little longer than wide, outline of margin 

 nearly continuous, piceous; head, thorax, scutellum and narrow apical elytral 

 border yellow. Head sparsely finely punctate. Thorax narrower at apex, sides 

 feebly arcuate, surface sparsely finely punctiite, basal marginal line feeble ; punc- 

 tures of elyti-a not deep nor closely placed; scutellum often yellow; prosternum 

 much narrowed at middle, punctate, not margined ; metasternuni piceous. not 

 closely punctate at the sides, mesocoxal line arcuate, joining the suture one-third 

 from the front. Abdomen yellow, punctures fine and not close, metacoxal line 

 joining the first suture. Legs yellow. Length .06 — .07 inch. ; 1.5 — 2 mm. nearly. 



The abdonjen has six .segments, the terminal very short. This 

 species resembles cermcdJix, but is smaller, and has differently formed 

 coxal arcs. 



Among the species imknown to LeConte (Proc. Acad. 1852, p. 141 ) 

 this was placed as a .•^ynonyni of ochmdeniK, which is now considered 

 merelv a variety of tliordciciix. The " Catalogus" erroneously places 

 xautha-spiK as a variety of tcniiiiKdiix. 



Hah. — Georgia, Florida and Texas. 



S. terininatus Say. — Oval, very little longer than wide, margin nearly 

 continuous. i)iceous; head, margin of thorax and elytral apex yellow. Head 

 sparsely punctate. Thorax distinctly narrower in front, sides moderately arcuate, 

 di.sc moderately closely punctate, more closely near the sides. Elytra a little more 

 coarsely, lint less closely punctured than the thorax ; prosternum narrow, an ele- 

 vated line each side ; metasternuni closely punctate at the sides, the mesocoxal 

 line joining the suture one-third from the front. Abdomen yellow, piceous at 

 base, the metacoxal line joining the suture and continuous with it. Legs yellow. 

 Length .Ofi— .075 inch. ; 1.5—2 mm. nearly. PI. L fig. 15. 



The abdomen has six distinct segments. The yellow apical region 

 of the elytra occupies about a fifth or fourth along the suture. The 

 abdomen may b(> almost entirely yellow, fre(|uently the two basal 

 joints are dark. The pale margin of the thorax varies in extent, 

 and may continue along the apex. 



Hah. — Pennsylvania, New Jeri^ey, North Carolina, Georgia, Texas. 



