PALAMINUS. | 637 
16. Palaminus parvulus. 
Parvus, testaceus, abdomine ferrugineo; capite prothoraceque densius fortiterque punctatis; elytris elongatis, 
dense subtilius punctatis. 
Long. 4 millim. 
Hab. Mexico, Jalapa (Hoge). 
Antenne short, the terminal joint stouter but scarcely longer than the one preceding 
it. Head small, rather narrower than the thorax; eyes attaining the hind margin. 
Thorax much narrower than the elytra, rather broader than long, very coarsely and 
densely punctured. Elytra pallid yellow, twice as long as the thorax, densely and 
rather finely punctate. Terminal styles moderately long. In the male the last ventral 
plate is much produced, and is broad, forming a transparent shield to the basal portion 
of the armature. 
This obscure little insect resembles P. testaceus, Er., Lec., but the male characters 
are quite different. 
Two examples. 
17. Palaminus deformis, (Tab. XVI. fig. 24.) 
Parvus, testaceus, abdomine ferrugineo; capite prothoraceque densius fortiterque punctatis, hoc transverso ; 
elytris dense punctatis. 
Long. 4 millim. 
Hab. Mexico, Teapa (Chrevrolat), Jalapa (Hoge) ; GuaTEMALA, near the city, Aceytuno, 
Capetillo, Zapote (Champion). 
This insect is very similar to P. parvulus, but the thorax is strongly transverse, and the 
elytra are shorter and more coarsely punctate. The male characters are peculiar: the 
last ventral segment is much produced and very unsymmetrical in form; on the left 
side there is a spine separated by a deep incision from the more elongate main lobe ; 
this latter has a broad extremity, which is sinuate-emarginate in an unsymmetrical 
manner. The female has the last ventral plate simple. 
We have a small series of this species; the two Mexican examples are females in 
a bad state of preservation, and are far from agreeing with the type or inter se, so that 
I am not at all sure that they really represent the same species. 
18. Palaminus chiriquensis. 
Parvus, gracilis, testaceus, abdomine ferrugineo ; capite prothoraceque dense fortiterque punctatis, hoc trans- 
verso ; elytris crebre fortiterque punctatis. 
Long. 4 millim. 
Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion). 
This species bears a very great similarity to P. deformis, but is rather more slender and 
a little less densely punctate, and the males of the two have strongly marked distinctions. 
In this sex of P. chiriquensis the terminal ventral plate is produced backwards and 
