114 
MEMBRA CID sE. 
Genus : TROPI DAUNTS, Fowler. 
Distinguished by the dorsum being raised and acutely keeled ; three nervures 
run from the base of the corium, as in Darnis, Leptosticta and Hebeticoides. There 
are two discoidal areas, the interior being the longest (Fowler, p. 60). 
Two species are noted by him, namely : 
TROPIDARNIS TECTIGERA. 
Fowler, l.c. Tab. V. figs. 7, 7a, 7b, p. GO. 
Size, 9x5 mm. 
Habitat .—Amula in Guerrero, 6000 feet. 
TROPIDARNIS ACUTIOR. 
Fowl. l.c. p. Gl. 
The keel is here more acute than in the last species. 
Size, 9x4 mm. 
Habitat. —Mexico. 
TROPIDARNIS PELLIGOLOR, n.s. 
(Plate XXIV. figs. 4, 4a, 4b.) 
Much larger than T. tectigera , and the dorsal ridge more arcuate, and fattened 
on the frons. There is a tendency to show another ridge behind the rounded 
shoulder-angles. Colour shining oclireous, or skin coloured; an obscure brown 
stain occurs below the dorsal ridge ; tegmiua brown, and just seen below the pronotal 
margin ; legs brownish, spotted, prismatic, and finely serrated ; eyes small and pale ; 
frons long and narrow. 
Figured from a fine specimen in the Hope Collection. 
Size, 15 x 7 mm. 
TROPIDARNIS ROBUSTUS, n.s. 
(Plate XXIV. figs. 5, 5a.) 
Less sluglike in form than Stictopelta, with a longitudinal keel extending from 
the metopidium to the pronotal apex ; finely punctured ferruginous yellow ; supra- 
humerals sharp, but small; two faint depressions above the eyes ; tegmina brown, 
with pale neuration. 
I include this in Tropidarnis nlfiefly from the presence of the marked dorsal 
keels. Though nearly allied to T. tectigera , I think it is distinct. 
Size, 10x5 mm. 
Habitat.. —Mexico. 
Hope Collection. 
