CZ) 
IV. List of the Longicornia collected by the late Mr. P. 
Bouchard, at Santa Marta. By Francis P. Pascog, 
F.L.S., &c. 
[Read January Ist, 1866.] 
Durtne the few months that the late Mr. Peter Bouchard spent 
at Santa Marta, in the state of New Grenada, he made and sent 
to this country two collections of insects. They were perhaps 
more interesting than extensive, but, had he lived, he would pro- 
bably have more fully justified the anticipations that were enter- 
tained regarding the insect Fauna of that part of South America. 
More devoted to the Lepidoptera than to the Coleoptera, his col- 
lections of the Jatter were less numerous than might have been ex- 
pected ; nevertheless they contained fifty-three species of Longi- 
corns, and as twenty-five of these are new or not previously de- 
scribed, I have thought that a list of them would be acceptable to 
the Society. 
The fifty-three species belong to no less than forty-five genera ; 
of these forty are already characterized, four are hereinafter de- 
scribed (two of them being of entirely novel form), and the 
remaining one will be defined by Mr. Bates in the valuable 
account which he is publishing of the species collected by himself 
on the Amazons. 
AcANTHODERES CIRCUMFLEXUS, Duval. 
STEIRASTOMA* HIsTRIONIcCUM, White. 
STEIRASTOMA LYCAON, N. sp. 
S. nigrum, nitidum, interrupte griseo-pubescens ; prothoracis 
spina bifida laterali vix producta, dente antico fere obsoleto ; 
tarsis totis nigris. 
Black, shining, strongly carinated above, the interstices covered 
with a brownish-grey pubescence; head witha raised line in 
front, not on the vertex; antennz about half as long again as the 
body in the male, the scape smooth ; prothorax with the anterior 
marginal tooth at the side almost obsolete, the bifid lateral spine 
* Serville, Ann. Soc. Ent. Fr. iv. p. 24, 
VOL. V. THIRD SERIES, PART III,— JUNE, 1866, ~ U 
