150 . HEMIPTERA-HOMOPTERA. 
more depressed and level on its upper surface than in the allied forms; it varies slightly 
in size. The conspicuous white patches on the scutellum are sometimes rubbed off, 
and some specimens are browner than others. Fairmaire! describes the tegmina as 
« jaunes, transparentes, une tache blanchatre a la base”; but he apparently had a very 
light-coloured specimen before him. In the ordinary examples the tegmina are fusco- 
hyaline, with the costal margin and a more or less distinct patch on the interior margin 
under the apex of the pronotal process dark, and with a distinct luteous or orange 
spot at the base. 
The Centrotus hamifer mentioned by Walker (List of Homopt. Ins., Suppl. p. 159) 
as from Port Natal must be referred to another species. 
2. Campylocentrus pusillus. 
Centrotus pusillus, Fairm. Ann. Soc. Ent. Fr. sér. 2, iv. p. 512". 
Hab. Mexico} (Mus. Brit.). 
Not represented in our collection. 
3. Campylocentrus obscuripennis. (Tab. IX. figg. 12, 12a, 3.) 
Campylocentrus obscuripennis, Stal, Ofy. Kongl. Vet.-Ak. Férh. 1869, p. 289°. 
Hab. Mexico (Mus. Holm.1), Orizaba (Mus. Vind. Ces.), Jalapa (IM. Trujillo). 
This species has the tegmina entirely fuscous, with a large bright hyaline spot on 
the interior margin a little before the apex. In the Vienna Museum there is a variety 
with the centre of the tegmina more or less hyaline and the margins broadly fuscous. 
The specimen from the Stockholm Museum is figured. 
4, Campylocentrus gibbicornis. 
Centrotus gibbicorne, Walk. Ins. Saund., Homopt. p. 76 (1858) *. 
Hab. Mexico (Sallé).—Sovuta America }. 
Closely allied to C. obscuripennis, from which it may be distinguished by its larger 
size, the quite differently-coloured tegmina, and the narrower and more reflexed 
pronotal horns, as well as by the strong confluent tomentose patch at the base of the 
scutellum. From C. hamifer it may at once be known by the much more arcuate 
pronotal process. 
5. Campylocentrus vitreipennis, sp. n. 
C. gabbicornt affinis et simillimus, sed latior, cornibus pronoti a fronte visis vix reflexis, tegminibusque, basi 
extrema excepta, totis pellucidis, vitreis, macula fusca parva ad marginem interiorem, distinguendus. 
Very closely allied to C. gibbicornis, but rather larger, with the horns of the pronotum less reflexed and almost 
straight if viewed from the front, and with the tegmina entirely transparent and hyaline, except the 
extreme base and a small fuscous spot on the internal margin towards the apex ; the veins also are finer ; 
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