6 Memoirs on the Coleoptera 



median and oblique sublateral line of ochreous scales and a lateral whiter line, 

 not visible from above; between the two lateral lines there is a more diffused line 

 of ochreous scales; near each side of the elytra there is a rather broad line of 

 dense ochreous scales, oblique posteriorly from three-fifths at the sides to four- 

 fifths on the suture, the ninth interval near base and the tenth behind the middle 

 clothed also with similar but more diffused scales; there are also dense ochreous 

 scales on all the intervals at apex; under surface and legs with more diffused 

 linear pale scales, becoming denser and whiter irregularly along the sides and on 

 the femora; beak as long as the head and prothorax, rather slender, evenly 

 arcuate, shining, rufescent and less sculptured in apical, rather coarsely punctate 

 and with loose ochreous scales in basal, half, the antennae at the middle, rufous, 

 the three basal joints of the funicle decreasing rapidly in length; prothorax nearly 

 a fourth wider than long, the sides rounded, gradually more converging anteriorly 

 to the finely, feebly constricted apex, which is a little more than half as wide as 

 the base, the latter broadly and feebly bisinuate; surface not finely, very densely 

 punctate; scutellum well developed, transverse, rounded, more shining and with 

 some ochreous scales; elytra barely a fifth wider than the prothorax and not 

 quite two and one-half times as long, parallel, rounding in about apical half, the 

 humeri obtusely prominent; striae fine, impunctate; intervals flat, rather closely 

 and distinctly punctate; abdomen loosely but somewhat strongly punctate. 

 Length ( 9 ) 5-5 mm.; width 2.0 mm. Brazil (a single example taken by H. H. 

 Smith at a locality which he failed to record). 



It is unfortunately not possible to compare this species very 

 closely with pictus through the Gyllenhal description, excepting as 

 to the form of the prothorax and the omission of any reference to 

 dense ochreous scales at the elytral apex in that species, but these 

 characters indicate, at any rate, that we here have a species distinct 

 from pictus. 



Cholinambates n. gen. 



I have given this generic name to certain of the Central American 

 species of generally larger size and more shining surface than the 

 true Ambates, and having a stouter, more cylindric and less tapering 

 beak. Cholinambates will include such species as cretifer Pasc, 

 heilipoides Chev., and polymorphus, albovittatus and leucopleura of 

 Champion. Mr. Champion has indicated several undoubtedly dis- 

 tinct species as varietal forms, and it is especially evident, for 

 example, that there could be no possible transition between cretifer 

 Pasc, and the form designated as figure 9, on plate 9 of the author's 

 work in the "Biologia." This figure 9 represents a distinct species 

 to which I would attach the name Cholinambates championi n. sp. 

 In the same way, it is not at all likely that figure 15 on the plate, 

 could represent anything but a species distinct fron heilipoides. 



Pycnambates n. gen. 



The type of this genus, which does not at all resemble the two 

 preceding in external habitus, may be described as follows: 



Pycnambates leopardinus n. sp. — Rather broadly oblong-suboval, convex, not 



