210 HEMIPTERA-HETEROPTERA. 
2. Plociomera formosa, n. sp. (Tab. XIX. fig. 25.) 
Head and anterior lobe of pronotum blackish, somewhat thickly and ochraceously pilose; posterior lobe of pro- 
notum pale castaneous, the lateral margins ochraceous, and with an obscure dark submarginal spot near 
each humeral angle; antenne with the basal joint castaneous, second and third joints pale brownish, 
apical joint black, second joint longest, third shortest. Scutellum with the base blackish, the apical half, 
including central carinate line, castaneous ; the apex luteous; clavus pale castaneous ; the apical suture 
luteous. Corium castaneous, basal costal margin, followed by a subtriangular basal spot about centre, a 
subquadrate marginal spot near apex, and extreme apex luteous; the castaneous coloration is tinged with 
piceous, and forms two more or less well-defined transverse fasciee, one central and broad, the other 
subapical and narrower; membrane pale brownish, with a small luteous spot near angle of corium. 
Anterior femora castaneous, with their apices luteous ; intermediate and posterior femora luteous, with a 
large castaneous annulation near apex; tibie luteous, annulated with castaneous at base, and with 
_ the apex also castaneous ; tarsi luteous, with their apices more or less castaneous. The posterior lobe 
of the pronotum and remaining upper surface is more sparingly pilose than the head and anterior 
pronotal lobe, the last of which is wider but considerably narrower than the posterior lobe, which is 
coarsely punctate. The anterior femora are armed beneath with a few very distinct spines near apex. 
Long. 4 millim. 
Hab. GuaTemata, San Gerénimo, Quezaltenango, Quiche Mountains, and near the 
city (Champion). | 
This species is allied to both P. minima, Guér. (from the description and size of 
which it seems very distinct), and P. oblonga, Stal, the previous species here enume- 
rated and figured. 
3. Plociomera ceca, n. sp. (Tab. XIX. fig. 24.) 
Head, anterior lobe of pronotum, and scutellum piceous; posterior lobe of pronotum and corium dull obscure 
ochraceous, thickly covered with dark punctures. Antenne with the basal joint piceous, the remaining 
joints dull obscure ochraceous; the second joint longest, and third shortest. Head obscurely punctate and 
pilose. Anterior lobe of pronotum obscurely punctate and pilose, the anterior margin distinctly dull 
ochraceous, the lateral margins obscurely dull ochraceous, wider, and a little narrower than posterior lobe, 
which is coarsely punctate, and which possesses five obscure longitudinal dark fascise, three discal and one 
at each margin.’ Apex of scutellum luteous. Corium with the basal half of costal margin, a subapical 
marginal spot, and basal claval margin paler ochraceous. Membrane dull brownish or piceous, and much 
abbreviated and truncate. Femora piceous, with their apices ochraceous; tibia dull ochraceous, with their 
extreme apices piceous; tarsi dull ochraceous, with their extreme apices piceous. Anterior femora armed 
beneath with a few stout spines near apex. 
Long. 23-34 millim. | 
Hab. GuateMaLa, Quiche Mountains (Champion). 
This species varies much in size, and is apparently most closely allied to P. twmens, 
Stal, from which it differs by the different colour of the antenne, colour and markings 
of corium, &c. The colour of the antenne is also variable, in some species being 
altogether piceous. The species is also inconstant in amount of melanism. 
CHOLULA, n. gen.. 
Body elongate ; pronotum large and subglobose, with the transverse constriction profound, the anterior lobe a 
little shorter and narrower than posterior lobe; basal margin concave at base of scutellum ; the lateral 
angles rounded, slightly ampliated and posteriorly produced. Head but little exserted, as in the two pre- 
_ ceding genera. Scutellum with a central carinate line as in Ploctomera, but differing from that genus by 
the less punctate corium, and in having the clavus more or less punctured, as in Pamera. 
