Coleopterological Notices, VI. 771 



adjoining surface scarcely at all modified. The female differs 

 somewhat, having the thoracic process slightly wider and just 

 noticeabl3" narrowed at base, the el^^tra barely twice as long as 

 wide and very broadly and obtusely rounded behind, and the 

 elytral maculation paler and more suffused. In some of its 

 characters pictus recalls serratus, the anterior fascia being a 

 coalescent variation of the short dashes of that species, but the 

 elongate, parallel elytra and non-dentellate thoracic process will 

 always readil}" distinguish it. It is difficult to understand how 

 such a conspicuous form as this could so long have been over- 

 looked ; it is represented in my cabinet by five individuals, 



MECYIVOTARSIJS Laf. 



The differences between this genus and Notoxus are very radi- 

 cal, in spite of the general similarit}- of facies and possession of 

 the pronotal process, which is so eminently characteristic of the 

 latter ; in Mecynotarsus it is even more elaborately developed 

 than in N^otoxus. But in Mec3'notarsus the tarsi are extremely 

 long and filiform, with the penultimate joint cylindrical and un- 

 modified. The body is always small and of elegant form, and the 

 upper surface is devoid of the erect tactile setre so evident in 

 Notoxus. Our species may be known by the following charac- 

 ters, elegans differing almost subgenerically from the first three : — 



Upper surface clothed with tine sericeous pubescence; eyes large; antennae 

 very slender; thoracic liorn finely and closely crenulate. 

 Elytra devoid of median darlver area. Atlantic Coast. 



Protliorax broadly rounded throughout at the sides, widest scarcely behind 

 the middle; elytra very nearly twice as long as Avide. Length 2.0 mm. 



caudidiis Lee. 

 Prothorax -nidest and prominently rounded at the sides behind the mid- 

 dle; elytra three-fourths longer than wide flaTicaus n. sp. 



Elytra pale testaceous, with a common sutural piceous cloud. Yuma, Cal. 



Length 2.5 mm delicatiiliis Horn 



Upper surface clothed with elongate parallel and decumbent scales, which are 

 white on the elytra, with a conspicuous pattern of black; eyes small; legs 

 and antennae much shorter and stouter; thoracic horn lass broad, with large 

 distant, abrupt and quadrate marginal teeth elegaiiS Lee. 



The first two species and probabl^^ also the third, have the pro- 

 notum finel}^ deeply channeled along the posterior margin, the 

 surface thence rapidly ascending to the general level and bearing 



Annals N. Y. Acad. Sci., VIII, Nov., 1895.— 52 



