142 HEMIPTERA-HOMOPTERA. 
5. Cyrtolobus vittatipennis, sp. n. 
Brunneo-castaneus, colore dilutiori, fere unicolor; pronoto fortiter sat dense punctato, utrinque distincte 
impresso, dorso a latere viso inwquali, antice depresso, ad medium late paullo elevato, deinde post medium 
sinuatim depresso, et in apicem obtusum extenso, carina distincta, fusco-testaceoque variegata ; tegminibus 
testaceo-hyalinis, vitté magna nigro-brunnea ad apicem alteraque ad medium, convergentibus, et partem 
vitreo-hyalinam includentibus ; corpore subtus pedibusque testaceis. . 
Of a light castaneous-brown colour, almost unicolorous, except for the dorsal carina, which is variegated with 
fuscous and testaceous; pronotum strongly punctured and deeply impressed on each side; dorsum, if 
viewed from ‘the side, uneven, sinuate, and depressed in front, then slightly elevated for some distance, 
and behind the middle again depressed and produced into a blunt apex; the tegmina are punctured at 
the base and are testaceo-hyaline, with two large dark bands almost meeting and enclosing a vitreous 
portion on the exterior margin ; in lighter specimens these bands are obscure, but the vitreous or testaceous 
portions appear distinctly separated ; underside and legs testaceous. 
Long. cum tegm. 8 millim.; lat. int. hum. 3 millim. 
Hab. Mexico, Xucumanatlan in Guerrero 7000 feet (H. H. Smith); GuaTEMALA, 
Quiché Mountains 7000 to 9000 feet (Champion). 
The shape of the dorsum easily distinguishes this species from the preceding. ‘Iwo 
female specimens. 
6. Cyrtolobus inzqualis, sp. n. (Tab. IX. figg. 2, 2 a.) 
Preecedenti affinis, sed colore griseo piceo-variegato, pronoto ad latera profundius impresso, dorso antice multo 
magis elevato, posticeque abruptius sinuatim depresso, tegminibusque vitreo-hyalinis, ad apicem fumosis, 
venis fuscis apicem versus dilute testaceis, valde differt. 
Closely allied to the preceding, and possibly the male of it, as one of the specimens of C. vittatipennis comes 
from the same locality; it is griseous in colour, with close and moderately strong fuscous punctuation, 
and with the pronotum variegated with dark fuscous-brown ; the dorsum is much elevated in front, and 
reaches its highest point a little behind the shoulders, from whence it sinks abruptly and somewhat 
sinuately to behind the middle, and from thence is extended into a moderately long and blunt apex, which 
is strongly impressed at the base, the sides being very strongly impressed just in front of this; tegmina 
punctured at the base, clear hyaline, with the apex smoky and the veins almost black, but quite light 
at the extreme apex ; abdomen dark above, testaceous below ; legs testaceous. 
Long. cum tegm. 83 millim.; lat. int. hum. 33 millim. 
Hab. Mexico, Xucumanatlan in Guerrero 7000 feet (A. H. Smith). 
One male specimen. This insect certainly seems very distinct from any other 
Cyrtolobus I have seen, although, as above stated, it may prove to be the male of the 
preceding; I hardly think, however, that this will be found to be the case. 
It will be noticed that nearly all the specimens here referred to come from elevated 
districts, and that they are represented by very few specimens; they evidently form a 
very difficult, though interesting group, and it is much to be hoped that more specimens 
may be found by future collectors. 
OPHIDERMA. 
Ophiderma, Fairmaire, Ann. Soc. Ent. Fr. sér. 2, iv. p. 473 (1846). 
This genus is distinguished by the broad convex dorsum, the approximate ocelli, and 
