108 HEMIPTERA-HOMOPTERA. 
process furnished with a broad rufous-brown ring bordered in front with light testaceous ; between this 
and the apex of the process, which is dark, there are two narrow rufous-brown bands; metopidium 
convex, with long scanty pubescence, strongly punctured, rugose; pronotum distinctly punctured 
throughout, but more remotely behind, impressed at the sides, with the humeral horns sharp (if viewed 
from the front almost straight, but if viewed from above plainly deflexed), their extreme tips dark; dorsum 
almost straight if viewed from the side, apical process slightly deflexed ; tegmina hyaline, with the veins 
distinct, brown or pitchy testaceous; legs light testaceous, with the tarsi, the apex of the tibie, and a 
minute spot at the base of the latter, black. ; 
Long. 7 millim.; lat. int. corn. 3 millim. 
Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion). 
STICTOCEPHALA. 
Stictocephala, Stal, Kongl. Sv. Vet.-Ak. Handl. Band viii. 1, p. 24 (1869). 
St&l separates this genus from Ceresa on the absence of the lateral horns of the 
pronotum, and the fact that the pronotum is convex and not keeled in front for a 
considerable portion of its length; as a matter of fact, however, neither of these 
characters is satisfactory, and the character on which the genus must be separated 
lies in the formation of the last abdominal segment of the male, which differs very 
much from that of Ceresa, the edeagus being shorter and much widened at the apex, 
and the styles being much shorter. . 
In the present state of our knowledge it is almost hopeless to distinguish the 
members of the genus satisfactorily, for they appear to have been described in several 
instances from old and faded specimens, and when a long series is available for 
comparison it is evident that examples which evidently belong to the same species 
differ considerably in size and breadth &c. Stictocephala appears to be almost, if not 
entirely, confined to North and Central America. 
1. Stictocephala femorata. 
Ceresa femorata, Fairm. Ann. Soc. Ent. Fr. sér. 2, iv. p. 289°. 
Thelia tacta, Walk. List of Homopt. Ins. ii. p. 560°. 
Hab. Mexico! 2, Chapultepec and Puebla (Bilimek, in Mus. Vind. Ces.), Guanajuato 
(Mus. Roy. Belg.), Mexico city (H. H. Smith). 
This species is the Thelia tacta of Walker (according to his types, though not quite 
according to his description), and answers exactly to the description of C. femorata of 
Fairmaire. It may be known by its greenish colour (which, however, in many old 
specimens is entirely faded to a light testaceous), and especially by the colour of the 
underside, which is almost entirely black in the male, the ovipositor only being black 
in the female; in the male, moreover, the upper part of the base of the femora is 
black, in the female the legs are of a uniform testaceous or greenish-testaceous colour. 
One or two of the species that have been described without reference to sex ought very 
probably to be referred to this species. 
