176 
MEMBRA CIDJE. 
membranes smoky, with brown at the bases and tbe neuration. A whitish 
carination rises from the metopidium and continues down the dorsum; the neuration 
of the specimen which is drawn from the Rosenberg Collection, is somewhat abnormal, 
but the insect I refer to Euritea. 
Expanse, 18 x 7 mm. 
Habitat. —Cachabe. Ecuador. 
Genus : ACUTALIS, Fairmaire. 
Ann. Soc. Ent. Fr. Ser. 2, iv. p. 496. Fowler, l.c. p. 113. 
Fowler limits the species, which he describes, to those examples of Fairmaire’s 
group which have five apical areas in the tegmina, and no discoidal area. He separates 
Micrutalis, which certainly has only four apical areas. Micrutalis seems to merge 
however into Acutalis; only a single figure of which, viz., A. nigrinervis is drawn in 
the 13.C.A. and this appears to have four not five apicals. Fairmaire says that “often 
one of the five terminal cellules in (Acutalis) is atrophied,” and he gives for the figure 
of the tegmina, 18 and 19 PI. VII. ; but Fowler says fig. 19 really represents 
Micrutalis, and that figure 20 is properly Acutalis, though Fairmaire ascribes the 
neuration to Scaphula. 
The insects comprised in these two genera have certainly different facies, yet it is 
doubtful if Micrutalis should have generic rank, until more material is available. But 
in this classification I think it best to follow that adopted in the Biologia. 
ACUTALIS NIGRINERVIS. 
(Plate XXXVII. figs. 4, 4a, 4b.) 
Fowl. l.c. Tab. VII. figs. 24, 24a, p. 114. 
Black, shining, with the front part of the head, a band above the forehead, and a 
lateral stripe on each side of the pronotum yellowish-white. These side bands are 
united to the band above the eyes ; punctured, eyes ferruginous red; tegmina hyaline, 
with thick and strongly marked brown neuration, with four apical areas; legs pale, 
testaceous, hind-pair serrated; tegmina warm fuscous at their bases ; underside 
dark. 
Size, 5x3 mm. 
Habitat .—Vera Cruz, Orizaba, Atoyac. 
ACUTALIS FLAVO-NERVOSA. 
(Plate XXXVII. fig. 5.) 
Shining ochreous yellow, with a dark patch above the pronotum and brown at the 
apex ; tegmina hyaline with pale yellow neuration showing obscurely five apical areas; 
