54 HETEROMERA. 
Numerous species from the southern part of Central America, and one from Tropical 
South America‘, agree well in the above-mentioned characters, and they form a well- 
defined genus f{. All these species bear a striking resemblance to certain Lycide and 
Hispide, more especially to the latter, and all are exceedingly rare. In one species, 
U. mimica, the elytral sculpture, antennal structure, &c. is here reproduced in a very 
similar manner to that existing in the genus Uroplata and other Hispidw. The oral 
organs are formed very much as in Séatira, though the antenne exhibit a very different 
structure. The elytra are sculptured as in many genera of Lycide and Hispide. 
U. appendiculata possesses a most remarkable sexual development in the male, the hind 
femora being furnished with a large hollow pouch beneath, and the anterior tibiz toothed, 
and the intermediate tibie twisted; U. simulans is also furnished with well-marked male 
characters. Two groups of species are indicated, one without, the other with an opaque 
velvety patch (not interrupting the striz) on each side of the elytra about the middle. 
The seven species captured by myself in the State of Panama were found upon leaves in 
the forest. 
* Hlytra without opaque lateral patch, 
1. Uroplatopsis imitator. (Tab. III. figg. 9, ¢ ; 9a, labium; 94, maxilla 
and maxillary palpus; 9 ¢, mandible.) 
Elongate, clothed with a few scattered erect hairs, opaque; reddish-ochraceous, the eyes, the scutellum, and 
the suture very narrowly, for a short distance, piceous. Head longitudinally grooved between the eyes, 
+t Uroplatopsis nodosa, 
Elongate, narrow, opaque, brownish-piceous, the head (except the eyes), the atkins at the sides, the elytra 
at the shoulders, and a narrow band across the middle and another at the apex of the femora, flavous, 
the elytra with a perfectly opaque black patch on each side about the middle. Head slightly depressed 
between the eyes, and with some coarse setiferous impressions between and behind them; antennz black, 
the apical joint and the greater part of the second testaceous, joints 3-10 rather broadly flattened and 
dilated, 7 and 8 the widest, 11 rather longer than 8-10 united; prothorax about as long as broad, the 
sides immarginate, rounded anteriorly, and abruptly constricted immediately before the base, the disc with 
three broad transverse smooth elevations on each side, the elevations separated one from another by 
deep transverse grooves and down the middle by a longitudinal one running from the base to the apex, 
the basal margin raised, the hind angles prominent, the surface smooth; elytra with smooth humeral 
callus, long and parallel, rather depressed, with regular rows of deep coarse impressions from the base to 
the apex, the interstices narrow and raised, the apices obtuse ; femora smooth and glabrous; tibia clothed 
on all sides with long erect hairs. 
Length 63 millim.; breadth 13 millim. 
Hab. Amazons, Ega (H, W. Bates). 
A single example of this species, apparently a female, is contained in Mr. F. Bates’s collection. 
+ In a closely allied undescribed genus, of which two or three species were captured by Mr. H. W. Bates 
on the Amazons (these being now contained in his brother’s collection), the apical joint of the labial palpi is 
_ broad and has its apical side shallowly emarginate, the femora are clavate, and the metasternal episterna have 
a very deep groove along the whole length of their inner margin. These species have the antenne formed as 
in Uroplatopsis, and also agree closely in all other respects. 
