COPTUROMORPHA.-——COPTURUS. 69 
convex, much wider than the prothorax, subcordate, blunt at the apex, depressed along the suture 
anteriorly ; very deeply punctate-striate, the interstices rugose, not wider than the striae. Mesosternum 
shallowly depressed. First ventral segment broadly flattened down the middle. Legs short; femora 
unarmed, carinate externally, the finely strigose area on the anterior pair transverse and placed near 
the base. 
Length 21, breadth 13 millim. 
Hab. Panama, Volcan de Chiriqui (Champion). 
One specimen. Very like some of the smaller Lechriops, but easily distinguishable 
from them by the conspicuous finely strigose area near the base of the anterior femoar. 
COPTURUS. 
Zygops, subgen. Coptorus, Schouherr, Cure. Disp. Meth. p. 302 (1826). 
Copturus, Schénherr, Gen. Cure. iv. p. 623 (1838) (part.) ; Lacordaire, Gen. Col. vii. p. 152 
(part.) ; Heller, Abhandl. Mus. Dresd. no. 11, pp. 4, 19. 
The numerous forms here referred to Copturus have the second joint of the funiculus 
more or less elongate, the prosternum without tubercles behind the anterior coxe, the 
mesosternum flattened or feebly excavate (rarely with a lamelliform prominence on 
each side between the cox), the metasternum, at most, depressed or foveate in front, 
and the femora armed with one or two teeth beneath, their apices sometimes acute or 
spined. Dr. Heller (/. c.) enumerates seventy species as belonging to it, and divides 
them into six groups or subgenera, two of which (I. and V.) do not appear to be 
represented within our limits; his group III., to which most of the Central-American 
Copturi belong, includes such diverse forms as C. avicularis, C. deplanus, C. mexicanus, 
C. ludiosus, and C. lamprothorax. Amongst the new species now added there are 
several that do not fall into any of these groups: C. centralis, C. exaratus, and 
C. verrucosus approach the genus Copturosomus; and C. furfuraceus forms a sort of 
connecting-link between Copturus and Lechriops. The last-mentioned genus, the type 
of which is LZ. sctwrus (Fabr.), includes most of the smaller forms with a complete 
rostral canal and dentate femora. 
The Central-American Copturi (excluding C. latitarsis) may be grouped thus :— 
I. Meso- and metasternum flattened or at most slightly depressed between the 
middle coxe*; joint 2 of the funiculus elongate (except in C. fulvosignatus t+) ; 
femora uni-, rarely bi-, dentate. 
A. Species oblong-ovate or oblong-elliptic, large, with coarsely punctate-striate 
elytra, the apices of which are sometimes sharply dentate in the ? (C. de- 
planus), the posterior knees acute or spined. [Macrocoprurvs and part of 
Group II]. of Heller.}. 2. 2. 2. 2. 2. 2... eee ww Nos. 1-4, 
* The metasternal depression is deeper in C. neohispanicus. 
ft This species would be almost as well placed in Damurus, Heller. 
