Coleopterological Notices, VII. 565 



smaller ej'es, loDgei", less arcuate and less converging terapora, 

 unimpressed occiput, broader head and prothorax with less 

 rounded sides of the latter, and in several other features. 



As usual in the present genus, the eh'tra have at the sides a 

 fine line beginning at the base, extending posteriorly, very grad- 

 ually receding from the edge, more rapidly toward tip and attain- 

 ing the elytral apex ; this line does not seem to be entirely homo- 

 logous with the very strong post-foveal carina of Cupila and 

 related genera. The sutures defining the side-pieces of the me- 

 «osternum are obliterated, but there is a fine straight longitudinal 

 •carina extending from the apical margin to the hind limits of the 

 middle coxse; at some slight distance externally from them, and 

 just external to this carina at its posterior limit, there begins a 

 large and deeply impressed channel, extending obliquely outward 

 ■and vanishing at about the middle of the metasternum at a con- 

 siderable distance from the side margins. In Melba the confor- 

 tnation of these parts is nearly similar, but the oblique channel is 

 very short and the el}>tral flanks have an oblique line extending 

 from near the middle of the lateral edges to the apex. 



Melba n. gen. — This genus will include Trimiuvi thoracicum 

 ■and puncticolle, and, in all probability, also jDarvulum, gracile, 

 laticolle, majus and discolor.^ which I have not seen. The head is 

 not quite so large as in Trimiomelba, and is apparentlj'' not modi- 

 fied in the male, the last antennal joint large and conoidal,the two 

 penultimate joints small, lenticular, gradually wider and virtuall}^ 

 symmetric. The first dorsal segment is not elongate and is not 

 narrowed at base as it is in Dalmosella, the second ventral not 

 as long as the next two and bi- or triexcavate sublaterally at base, 

 the sixth large in the male, the seventh enclosing a large, oblong- 

 oval, liguliform pj^gidium. In the male the anterior, and especi- 

 ally the intermediate, femora are greatly swollen, while in Tri- 

 miomelba this chai'acter is scarcelj" noticeable. In 3Ielha 

 ■sulcalula the intermediate male tibiae are obtusely but~ strongly 

 prominent within just beyond the middle, this character not being 

 ■observable in the corresponding sex of any other species which I 

 have seen. In pimcticollis the abdominal carinse are very short 

 and separated by about ^ the discal width; in thoracica, which is 

 nearly similar, the caringe are slightly longer and are separated 

 by onl}' about \ of that width. Trimiopsis specularis Reit., from 



