Coleopterolugical Notices, VII. 475 



others found in the same geographical regions, so that a detailed 

 description is necessary. Perforatus may be known by its rather 

 narrow form, long and narrowly oval, gradually pointed and 

 very coarsely punctate elytra and somewhat strongly incrassate 

 antennae, with the penultimate joints moderately transverse. 

 In the male from Iowa the penultimate joints of the antennae are a 

 little less transverse, and the eleventh more elongate than in the 

 male described above, being equal to the two preceding together. 

 The anterior femora of the male in this species, as well as in 

 badius, are swollen much more than in the female and are angu- 

 late above. 



2. S. Ijadius n. sp. — Eath6r strongly ventricose, polished, impunctate 

 anteriorly, the elytra coarsely but sparsely punctate; body piceous in color, the 

 elytra generally much paler ; legs and antennse pale testaceous ; pubescence 

 moderately abundant, shorter and inconspicuous anteriorly, rather long stiff 

 fulvous and suberect but strongly recurved on the elytra. Sead much wider 

 than long, the eyes prominent and rather large, much longer than the tem- 

 pora ; edges of the front above the antennse slightly elevated. Antennse a lit- 

 tle less than % ^^ long as the body, gradually and moderately incrassate 

 toward tip ; second joint almost as long as the first but thinner, feebly 

 obconic, % longer than wide, 3^ longer than the third and much thicker ; 

 three to six equal in width, cylindric ; third %, fourth 3^, fifth nearly 3^, sixth 

 3^, longer than wide ; seventh nearly 3^ thicker, more rounded, not quite as 

 long as wide, almost similar to the eighth, the latter just perceptibly thicker ; 

 ninth %, tenth 3^, thicker than the eighth, 3^ and % wider than long respec- 

 tively ; eleventh fully as thick as the tenth, about as long as the two preced- 

 ing, very obliquely and acutely pointed. Prothorax about as long as wide, 

 fully 3^ wider than the head, dilated and narrowly rounded laterally at apical 

 third, the sides thence moderately convergent and broadly sinuate to the base ; 

 four subbasal fovese not connected but very irregular in form, the less basal 

 and larger depression at each side enclosing a small setigerous tubercle as is 

 frequently the case also in other allied species. Scutellum distinct, parabolic. 

 Elytra % longer than wide, not quite three times as long as the prothorax and 

 about % wider, widest as basal %^ gradually narrowed in ogive toward tip ; 

 sides strongly rounded at base to the prothorax, the humeri somewhat evident ; 

 subhumeral impression very small ; inner fovea large ; subsutural impres- 

 sions just traceable, the suture not modified. Legs slender, the femora feebly 

 clavate, the anterior more strongly, particularly in the male ; tarsi slender 

 and filiform, the four basal joints of the posterior decreasing rapidly in length 

 as usual. Length 1.1-1.25 mm.; width 0.5-0.62 mm. 



Pennsylvania (Westmoreland Co.); Virginia (Fredericksburg); 

 Canada (Ottawa). 



The anterior femora of the Pennsylvania male described above 



