120 
M EM BRA C1DJE. 
GeNUS : HYP HINGE. 
Stal, Q^fv. Vet. Akad. Fork. 24, p. 558 (1866); Fowler, B.C.A. p. 78. 
This genus is a difficult one to identify, partly from the variable shape of the 
pronotum, partly from the different sizes of the species, from the different habitats, 
and also from the fact that the suprahumeral horns are more developed in the female 
than in the male sex. 
This last character might suggest to entomologists, that certain examples belong 
to quite different species. 
The examination of a series is often puzzling when the examples in a collection 
give us no certain help as to the places of capture. 
Hyphinoe is one of the genera separated by Stal from the somewhat heterogeneous 
group comprised in Hemiptycha of Germar and Fairmaire. 
The only known habitats at present, are the regions of Central America. Observers 
on the spot only can be certain that apparent differences are or not sexual. If the 
insects are in close company, proof is easy. 
HYPHINOE MARGINAL]S. 
(Plate XXV. figs. 1, la.) 
Fallon, Rev. d’Ento: IX. p. 358; Fowler, l.e. p. 75; Tab. V. fig. 25 (77. marginatci). 
In form, general colour and size much like II. asjoZialtina, but may be readily 
distinguished by a curved yellow or ochreous band on each side of the pronotum ; 
this crescent-shaped streak extends from the summit of the pronotum to the extreme 
apex, and is in part parallel to the lower margin ; legs ochreous or dusky orange. 
The front view shows the metopidium high, broad, and ffattish at the top. Supra- 
lmmerals barely developed. This insect is remarkable. 
Size, 15 x 8 mm. 
Habitat. — Guatemala. 
HYPHINOE ASPHALTINA. 
(Plate XXV. figs. 2, 2a, 2b.) 
Hemiptycha asphaltina, Fairm. l.c. p. 319, PI. VI. fig. 20; 77. apriformis, $ Walk., l.c. Suppt. 
p. 114; II. pubescens, $ Walk. l.c. p. 144; Hyphinoe morio } Stal, l.c. XXVI. p. 257 (1869). 
Shining black ; pronotum rising into a high and rounded dorsal eminence which 
slopes to a sharp apex extending to the tips of the tegmina; metopidium high and 
broad between the supraliumerals. 
Tegmina rich brown, or blackish and shining; wings delicate and hyaline; 
