SUBGENERIC CHARACTERS. 39 



Head large ; anterior face vertical; with four distinct carinas ; frout a little flattened 

 between the eyes, and also strongly sulcate. Antennae short, liliform, multiarticulato ; 

 joints indistinct, cylindrical. Prono turn short, shagreened, or almost smooth: its disk 

 flat ; transverse incisions feeble ; dorsal carina distinct, lateral more or less prominent ; 

 the posterior border sloped slightly obliquely on the sides ; median point somewhat 

 salient. Prosternum furnished in the middle Avith a strong spine, somewhat enlarged, 

 and very obtuse at the apex. Elytra short, not passing the abdomen, generally equal 

 to it in length. Wings short, not quite the length of the elytra. Eyes large, oblong, 

 slightly prominent. Palpi short ; joints cylindrical. Breast large, flat. Abdomen en- 

 larged, strongly iinicarinate above; terminal pieces of the female short, as are also the 

 appendages (cerci). Subanal plate of the male somewhat triangular, pointed, and 

 entire at the tip ; elevated or straight ; appendages of this sex more or less long ; some- 

 times setaceous and curv^ed; in others larger, horny, curved inwards, and truncate at 

 the tip. 



Here he divides tbe genus into two sections, as follows : 



First. Abdominal appendages of the male sometimes setaceous, a little curved as the 

 born of an ox. Subanal plate of the male rather short, elevated. Pronotum sha- 

 greened; its posterior median point somewhat prominent. 



Second. Abdominal appendages of the male very large, corneous, bent interiorly en 

 cuiller at the extremity, where it is subtruncate. Suba.nal plate of the male almost 

 straight. 



C. itallcus is placed in the latter division. 



The removal of the two species mentioned above left G. italicus as the 

 ouly original representative of his genus. But in the mean time Bur- 

 meisterredescribes the genns, and changes the name to Calopfemis, in- 

 cluding in it as described and understood by him not only italicus, but 

 also the American species femur rubrum, femoratus, and hivitiatus, be- 

 sides a number of other exotic species. This author in his Handbuch 

 der Entomologie (1838) describes the genus as follows, giving Callijptainus 

 of Serville as a* synonym ; 



A more compressed and yet in general more pleasing structure of the body betrays 

 the members of this genus. Moreover, its head stands entirely vertical^ has no no- 

 ticably prominent apex, and the two median frontal carinse are united into a flat 

 bulge, which, in the neighborhood of the lower ocellus, is obsolete. The margins of 

 the vertex in front of the eyes are rather sharp, and the part between them is notice- 

 ably depressed (sulcate). The strong mouth parts (mandibles) are distinguished, on 

 closer examination, by several pointed teeth on the inner margin. The pronotum has 

 distinctly marked lateral borders (or carinse), and a sometimes distinctly, sometimes less 

 prominent median line (carina) ; the posterior margin is more or less salient ; and the 

 last of the transverse impressed lines cuts the median carina abont its middle. The 

 prosternum has an obtuse vertical spine : the flat meso- and metasternum are broad. 

 Wings and elytra without distinctive characters. Hind femora thick, strongly com- 

 pressed, with prominent carina above ; as long as the abdomen- The male in this 

 genus is especially distinguished by the great development of its genitalia, which causes 

 a spherical thickening of the apex of the abdomen. The terminal ventral plate is, 

 moreover, sometimes large, and envelopes the apex, and sometimes no longer than 

 usual ; in the latter case the cerci are very large and curved inward. 



In this G, femoratus, " from Carolina," appears to be his type; (7. 

 femur-rubrum being placed next, and C, italicus third. 



