104 HEMIPTERA-HOMOPTERA. 
alutaceous tegmina, the corium of the latter being furnished with four very strong 
raised veins, which are almost obliterated behind the middle; the posterior tibie 
are trispinose. 
1. Grynia nigricoxis. (Tab. XI. figg. 9, 9 a.) 
Grynia nigricoxis, Stal, Berl. ent. Zeitschr. 1862, p. 308°. 
Hab. Mexico, Vera Cruz (coll. Signoret 1). 
Not represented in our collection, the figures being taken from a specimen belonging 
to the Vienna Museum. 
RUDIA. 
Rudia, Stal, Hemipt. Afr. iv. p. 187 (1866). 
Stal describes this genus as follows :— Capite brevi, ante oculos paullo prominulo; 
vertice arcuato, brevissimo; fronte carinis destituté, longitrorsum biimpressd; clypei 
lateribus basi subcarinatis ; venis clavi ante medium in unam conjunctis ; tegminibus 
posterius seriebus duabus venularum transversarum instructis, costa depressa, latiusculé ; 
tibiis posticis trispinosis.” He included in it Achilus dilutus, Stal, and Achilus bicinetus, 
Spinola; both these species appear to be represented in our collection. The length of 
the vertex varies considerably. 
1. Rudia diluta. (Tab. XI. figg. 10, 10a.) 
Achilus dilutus, Stal, Eugen. Resa, Ins. p. 2717. 
Rudia diluta, Stal, Berl. ent. Zeitschr. 1866, p. 392’. 
Hab. Panama, Bugaba (Champion).—Ecuapor, Puna I.1. 
The largest specimen of this insect in our collection measures 10 mm. in length, 
including the closed tegmina, but one (a male) is only half this size. I have compared 
our insects with one of Stal’s types. © 
2. Rudia proxima, sp.n. (Tab. XI. figg. 11, 11@.) 
Preecedenti valde affinis, sed vertice magis producto, carinis verticis et pronoti magis distinctis, et areis 
apicalibus venis minus subtilibus distinguendus. 
Very closely allied to R. diluta, but with the vertex distinctly longer and narrower, and the pronotal keels 
more conspicuous ; the veins of the tegmina are also more distinct. 
Long. cum tegm. 9 millim.; lat. ad hum. 34-4 millim. 
Hab. GuatEMaLA, Cerro Zunil (Champion); Panama, Volcan de Chiriqui (Champion). 
Var. minor, n. 
_ Forma typica minor tegminibusque pone magis dilatatis. 
Considerably smaller than the type-form and more dilated behind, thus resembling FR. bicincta, from which it 
may be known by the shape of the head, and especially by the shorter pronotum and longer scutellum. 
Long. cum tegm. 63 millim.; lat. ad hum. 24 millim. 
Hab. Panama, Volcan de Chiriqui (Champion). 
