Feb., 1847.] 163 



taceous : thorax impunctured, with the lateral margins clearer than the disk, 

 and rather broadly depressed : scutellum impunctured : elytra punctured, 

 punctures numerous, small, profound, and ralher regular and equidistant: 

 lateral margins and apex indeterminately and broadly dull testaceous : be- 

 neath brown or blackish-piceous ; pleurae and epipleurse, dull testaceous >' 

 posterior femora rufo-piceous. Closely allied to quercata, Fabr., which it 

 much resembles ; that species, however, has the thorax always testaceous, 

 and the testaceous color of the lateral margins of the elytra is ever clearly 

 limited, which is never the case in limbalis. 



2. (E. scalar is. Testaceous; three common fasciae of the elytra black. 

 21. long. Pennsylvania. 



Attica nitidula, Melsh. Catal. 

 " scalaris " MS. 



Flattish, oval, testaceous above ; head testaceous, sculptured as in the pre- 

 ceding species; eyes deep black; antennas fuscous, with three basal joints tes- 

 taceous ; palpi, feet and antepectus, testaceous ; thorax impunctured with the 

 lateral margins rather broad and concavous : scutellum black-piceous: elytra 

 punctured and rugulose, punctures minute and obsolete; three common, broad 

 irregular, black fasciae, confluent on the suture, and of which none attains the 

 lateral edges : the front and broadestband is located immediately behind the 

 basal edge, the intermediate and longest one on the middle, and the posterior 

 and rather shortest band is placed before the apex: abdomen and postpectus 

 reddish-brown-piceous : posterior femora strongly incrassated. Closely al- 

 lied to sexmaculata, Illig. 



Pachyonychus, Chevr. 



P. ? paradoxus. Pale rufous: lateral two-thirds of the elytra and an- 

 tennae blackish. 1| 1| 1. long. Pennsylvania. 



Form altogether that of a Lema, Fabr. Head with a few minute scattered 

 punctures : a short impressed cross between the eyes ; antennae rather robust, 

 and somewhat more than half the length of the body, blackish or dark reddish- 

 brown, with three basal joints rufous: second and third joints short, subequal, 

 together not much longer than the fourth: palpi color of the head: thorax like 

 the head, pale rufous, glossy, transverse, much narrower than the elytra, trun- 

 cate before and behind, with the sides feebly rounded, towards the hind angles 

 more strongly: finely margined: angles, each with a small mammiform tubercle, 

 from each of which arises a single hair: sparsely punctured: transverse basal 

 groove entire, punctured : scutellum color of the thorax, impunctured: elytra 

 oblong-quadrate, with the apex rounded : punctate-striate : interstices min- 

 utely and distantly punctured : black, or dark-reddish-brown, with the su- 

 tural third rufous : sometimes the apex the same : beneath and feet color of 

 the thorax : posterior femora ordinarily incrassated : penultimate tarsal 

 Joint strongly bilobed : posterior nails inflated. 



Disonycha, Chevr. 

 D. abbreviaia. Pale fulvous : eyes, antennnre, three elytral vittae, exterior 

 edge of the tibiae and tarsi black. 3 1. long : If 1. wide. Pennsylvania. 

 Ovate, testaceous, tinged with fulvous : head with scattered minute punc- 



