150 Mr. H. W. Bates’s Notes on Longicorn Coleoptera. 
character in the form of the tarsal claws. On superficial 
observation the claws seem destitute of teeth, as in Saperda ; 
but on close examination the thickened base of each is ob- 
served to be separated from the stem of the claw by a notch 
not far from the base, leaving a moderately acute basal tooth. 
The structure thus does not differ essentially from that of 
certain species of Phytecia, e. g. P. femoralis (Muls.). In all 
other points of structure, however, Sphallonycha belongs 
strictly to the Amphionycha group, in which the peculiar 
form of the head and the relatively great length and tubercu- 
lation of the thorax would entitle it to generic distinction 
independently of the form of the claws. 
There is great resemblance in general form, as well as in 
the dentation of the claws, between this genus and Pretilia ; 
but the degree to which the head is retracted differs consider- 
ably in the two genera; and the elytra are destitute of carinz 
in Pretilia, and distinctly carinate in Sphallonycha. Thus 
all the leading characters on which Lacordaire relied in his 
classification here break down utterly. 
Sphallonycha roseicollis. 
Sphallonycha roseicollis, Bates, Ann. & Mag. Nat. Hist. ser. 8, xvii. 
p. 430 (Amphionycha roseicollis). 
Upper Amazons. 
ALAMPYRIS. 
Alampyris, Bates in Godman and Salvin’s Biologia Centrali-Americana, 
Coleoptera, v. p. 218. 
In this genus, numerous in species in Mexico and Central 
America, the head is retracted nearly as in Amphionycha, but 
the exserted anterior haunches are scarcely so closely approx1- 
mated. The majority have no trace of elytral carine; and in 
those where they are present they are obtuse and sometimes 
much abbreviated, with epipleure of slight elevation. The 
true position in the group 1s very difficult to fix. 
Alampyris planipennis. 
Valde elongata, vix convexa, nigro-fusca, dense erecte pilosa, tho- 
racis linea laterali indistincta, elytrorum sutura vittaque laterali 
albo-testaceis, marginibus albo-tomentosis; thorace sparsim, 
elytris crebre punctulatis absque carinis, lateribus post medium 
paullulum explanatis; palpis et femoribus testaceo-variis. ¢ ab- 
domen nigrum; @ segmentis tertio et quarto utrinque pallide 
flavis tomentosis. 
Long. 6-7 lin. ¢ @. 
South Brazil. 
