SMERDALEA.—STYLOCENTRUS. . 1638 
the base, then strongly sinuate, and again elevated at the apex into a strong broad protuberance, on which 
the dilated apex of the pronotal process rests ; tegmina extending for some distance beyond the apex of 
the pronotal process, uncovered, slightly sinuate on the interior margin at the apex of the clavus, and from 
thence obliquely rounded to the apex, which is obtusely angled; clavus with two strong veins proceeding 
from the base and a transverse vein in the middle; corium with the radial and ulnar veins straight until 
about the middle and then curved, with five apical areas, one discoidal ; wings with four apical areas, the 
second not stylate ; legs slender, posterior tibise with the outer side serratulate on the margins. 
The species on which this genus is described is one of the most extraordinary 
members of the Membracide that has yet been discovered. At first sight it looks like 
a very large Cyphonia, but, as will be seen from the description, its affinities are 
evidently towards the Centrotine, and it is very closely allied to Bocydium, near which 
it must be located. 
1. Smerdalea horrescens, sp. n. (Tab. X. figg. 7, 7a, b.) 
Brunnea, testaceo fuscoque variegata ; pronoto scabro, flavo-pubescenti, fortiter remote et irregulariter punctato, 
metopidio cornibusque tuberculatis, ad basin cornuum calloso, levi, testaceo; processu pronoti in medio 
testaceo, spinis- posticis testaceo annulatis, apice seepius fusco; tegminibus ut pronoto variegatis, parte 
dimidia basali pubescenti, suturé clavi late hyaliné excepta, opaca, parte apicali hyalina; apice late fusco- 
brunnea, venis crassis, hyalinis, pubescentibus; pedibus dilute testaceis, fusco annulatis. 
Of a warm brown colour, variegated with fuscous and testaceous; pronotum irregularly and more or less 
‘remotely punctured and more or less tuberculate, especially in front and on the broad frontal horns; on 
each side of the base of the latter there is an uneven, smooth, testaceous callosity ; posterior process of the 
pronotum testaceous in the middle, apical spines ringed with testaceous, the central spine being always 
“ more or legs fuscous at the apex; tegmina variegated like the pronotum, but somewhat darker, with the 
... basal half and the thick veins variegated and pubescent, and a broad patch at the apex and the portion 
of the corium meeting the apex of the clavus fuscous-brown, the dark colour being uninterrupted along the 
internal margin of the corium; legs light testaceous, the tibize ringed with fuscous. 
Long. cum tegm. 11 millim.; lat. int. corn. 7 millim. — 
' Hab. Guaremata, Panzos in Vera Paz (Champion) ; PANAMA, Bugaba, Volcan de 
Chiriqut 2500 to 4000 feet (Champion). 
This species is evidently both local and very scarce. Four females. 
A specimen from Bugaba is figured. 
| STYLOCENTRUS. 
Stylocentrus, Stal, Kongl. Sv. Vet.-Ak. Handl. Band viii. 1, p. 49 (1869). 
This genus was formed by Stal for the reception of Bocydium ancora, Perty, which 
is found in Cayenne, and is, apparently, a very scarce species. It may be known by 
the very long and slender trispinose process which proceeds from the front of the 
pronotum (the intermediate spine almost reaching to the apex of the tegmina), and by 
the double tubercles on this part. The insect described below is not so large or hand- 
some as B. ancora, but it is one of the most remarkable of the Central-American 
Homoptera: Mr. Champion informs me that it is very scarce, and that he very rarely 
found it, and then only a single specimen at a time. 
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