ALCMEONE.—HYPHINOE. 73 
A broad and robust species. Head scarlet; pronotum shining black, with the greater part of the front, the 
sides, and a space before the apical process scarlet; a narrow scarlet line also runs down the centre of 
the black portion ; on each side beneath the horns there is a broad black band reaching to the margins, 
and on each side behind the middle there is a round black spot, the top of which is merged in the dark 
colour of the dorsum ; apical process very long, straight, aculeate, black; tegmina fuscous, darker towards 
the base, sparingly punctured ; legs testaceous, the coxee darker. 
Long. cum processu pronoti 15 millim. ; lat. int. corn. 10 millim. 
Hab. Mexico, Jalisco (Schumann). 
One male specimen. This is one of the most conspicuous insects among the 
Membracide in our collection. 
HYPHINOE. 
Hyphinoé, Stal, Ofv. Kongl. Vet.-Ak. Férh. xxiv. p. 558 (1867), xxvi. p. 257 (1869). 
This genus seems to be chiefly distinguished by the different conformation of the 
pronotum in the sexes; this has led to a considerable amount of confusion, as the 
older authors described the sexes of the same insect as different species. Occasionally 
there appears to be a tendency to dimorphism in the male. 
Hyphinoé contains about a dozen species, which seem to be entirely confined to 
Central America and the immediately adjoining regions. The other genera formed by 
Stal out of Hemiptycha (apart from Hemiptycha proper) are Pyranthe, Proterpia, 
Lualthe, and Bubalopa, and more might probably be added, as the species are very 
variable. ‘The characters, however, which Stal draws from the relative position of the 
ocelli with regard to the eyes, and from the proportional size of the parts of the 
tegmina covered by the pronotum or left exposed, are not always satisfactory ; and it is 
a question whether he has not already gone too far in his division of the genus as at 
present known. 
1. Hyphinoé cuneata. 
9. Hemiptycha cuneata, Germ. Rev. Ent. Silb. iii. p. 2461; Fairm. Ann. Soc. Ent. Fr. sér. 2, iv. 
p. 319, t. 6. fig. 26°. 
3. Hemiptycha globiceps, Fairm. loc. cit. p. 319, t. 6. fig. 19°. 
Hab. Mexico!* (coll. Signoret ; Hoge; Sallé), Guanajuato (Dugés, in Mus. Roy. 
Belq.). 
In this, as in other species of Hyphinoé, the pronotum (which is, as a rule, abruptly 
declivous before the apical process) is occasionally merely sinuate and almost straight. 
2. Hyphinoé camelus. 
3. Darnis camelus, Gray, in Griff. Anim. Kingd., Ins. ii. p. 260, t. 109. fig. 3°. 
9. Hemiptycha camelus, Fairm. Ann. Soc. Ent. Fr. sér. 2, iv. p- 319’. 
Hemiptycha sagata, Germ. Rev. Ent. Silb. iii. p. 245°. 
BIOL. CENTR.-AMER., Rhynch. Homop., Vol. II., May 1895. *Io 
