132 HEMIPTERA-HOMOPTERA. 
of: P. concava, but it is probably distinct ; the porrect horn is not a sexual difference. 
P. porrecta is closely allied to Entylia, and ought perhaps to be placed at the end of 
that genus; in this case, however, P. concava could hardly be formed into a separate 
genus, and would have to be included, as of old, under Entylia. 
METHEISA, gen. nov. 
Elongata, capite longitudine haud multo latiori, oculis prominulis, metopidio simplici, vel protuberante, vel in 
cornu breve porrectum extenso; pronoto subparallelo, angustato, distincte costato, ad apicem sensim 
angustiori, apice acuto usque ad apicem tegminum producto, humeris leviter acute prominulis, dorso a 
latere viso fere recto vel in medio leviter sinuato, apicem versus sensim levissime deflexo; tegminibus 
parte fere dimidia intecté, areis apicalibus quatuor, discoidalibus duabus, alis areis apicalibus quatuor, 
discoidali nulla; pedibus teretibus, tarsis posterioribus sat elongatis. 
Elongate and subparallel, gradually narrowed towards the apex of the pronotum, which is acute and just 
reaches the apex of the tegmina; head rather large, eyes prominent ; metopidium simple and rounded in 
front or forming a right angle with the hinder part of the pronotum, or slightly protuberant, or with a 
distinct short horn projecting from its front; upper surface of the pronotum costate, the shoulders 
distinctly and sharply but minutely prominent; distance from the dorsum to the margin narrow ; 
dorsum straight or slightly sinuate in the middle if viewed from the side ; tegmina with four apical and 
two discoidal areas; wings with four apical areas and no discoidal area; areas of tegmina mostly oblong, 
the third apical area, however, is more or less semicircular and stylate ; basal costal portion of the 
tegmina opaque and punctured ; legs slender, the posterior tarsi elongate. 
This genus is closely allied to Entylia and Publilia on the one hand, and to Hille 
and Lucilla on the other. As will be noticed from the description, it is very variable 
as regards the shape of the front part of the pronotum; the difference appears to 
be in no way sexual, as there are females in our collection with and without the 
frontal horn. 
1. Metheisa lucillodes, sp. n. (Tab. VIII. figg. 13, 138 a.) 
Colore variabili, viridi vel viridi-testaceo vel fusco vel fere nigro, cornu pronoti (ubi adest) infuscato; 
capite fortius punctato, inter ocellos impresso ; pronoto dense sat fortiter punctato, carina centrali distincta, 
costisque quatuor vel quinque (interdum abbreviatis) instructo; corpore subtus et parte opacd tegminum 
cum colore dorsi congruente, pedibus testaceis, raro infuscatis. 
Very variable in colour, green or greenish-testaceous, fuscous or almost black (the darker specimens showing 
traces of one or two lighter bands), with the frontal horn of the pronotum, where present, in all cases 
infuscate ; pronotum thickly and rather strongly punctured, with a distinct central keel, and with four or 
five more or less regular and in some cases abbreviated cost on each side ; the underside and the opaque 
and punctured part of the tegmina appear to agree in colour with the colour of the upper surface, but the 
legs are nearly always testaceous, sometimes in part infuscate. 
Long. 4-5 millim. ; lat. int. hum. 17-2 millim. 
Hab. Panama, Bugaba, Volcan de Chiriqui 2500 to 6000 feet (Champion). 
The discoidal areas of the tegmina are usually equal in size, but in some cases the 
exterior one is very small. 
This insect is very like small specimens of Lucilla viridula, but in that species the 
dorsum is slightly protuberant behind, and not in front of, the shoulders. 
