CHLAMYS. 79 



10. Chlamys hybrida. 



Chlamys hybrida, Koll. Mon. Clilam. p. 24, t. 1. fig. 27 1 ; Lacord. Mon. p. 689 2 . 

 Chlamys inaqualis, Klug, Ent. Mon. p. 129, t. 8. fig. 12 3 . 



Bab. Mexico, Cordova (SalU). — Beazil 3 , Eio de Janeiro 1 2 . 



As I have only one specimen from M. Salle's collection to compare, it would not be 

 prudent to come to a definite conclusion in regard to this species. Two specimens in 

 the collection of Mr. Baly agree very nearly with the Mexican form. The latter 

 however, is slightly more elongate, and the thorax, instead of being partly transversely 

 rugose, is simply punctate, and the channel which divides the elevation is placed more 

 forward ; there are also small dark fulvous spots visible on the anterior part. I cannot, 

 however, in default of other characters, find sufficient difference to separate the two 

 forms. Klug's description and figure give no proper idea of the species, the first being 

 too short and obscure, and the second disagreeing with the figure given by Kollar. I 

 very much doubt whether the two insects are identical, although Lacordaire quotes 

 them as such ; but neither does his description agree well with that of Kollar. 



11. Chlamys frontalis. 



Oblong, parallel, subcylindrical, black or black and fulvous below ; bead fulvous, with a black spot at the base ; 

 thorax closely punctured, with a moderately high rounded elevation, black ; elytra blackish seneous, each 

 elytron with nine or ten isolated tubercles. 



Length 2 lines. 



Head closely and finely punctured, fulvous, with a square-shaped or triangular patch at the vertex, blackish ; 

 antennae as long as the thorax, piceous, three or four basal joints fulvous, transverse from the fifth joint ; 

 thorax closely rugose-punctate, with a rounded moderately high elevation, the latter furnished at the top 

 at each side with a slightly sinuate ridge diverging towards the anterior margin ; in front of the latter 

 several small more or less distinct fulvous spots placed in a crescent are visible ; elytra slightly constricted 

 at the middle, distantly punctured, each elytron with nine or ten tubercles placed as follows : — four situated 

 along the suture, the second of which is in shape of a short transverse ridge ; four others also placed 

 longitudinally on the disk, the first of which is the largest and situated at the middle of the base ; two or 

 three more are seen near the lateral margins ; when viewed laterally the first two rows of tubercles form 

 two more or less interrupted lines from the suture to the base : pygidium finely and remotely punctured, 

 blackish, margined in some specimens with fulvous ; underside black, varied to a greater or lesser extent, 

 as well as the legs, with fulvous ; breast coarsely punctured. 



Hab. Guatemala, near the city, Duenas, Capetillo {Champion). 



From C. hybrida and C.flavifrons, to which this species is rather closely allied, the 

 much smaller and rounded thoracic elevation, which is not divided by a channel as is 

 the case in the first-named species, the much finer punctuation of the thorax, together 

 with the spotted head and thorax, will divide the present species, of which some 

 specimens have the underside and legs almost entirely fulvous. Ten specimens were 

 collected by Mr. Champion. 



