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XIX. Contributions to an Insect Fauna of the Amazon 
Valley (Coleoptera, Cerambycidse) . By H. W. 
Bates, F.Z.S., late Pres. Ent. See. 
[Bead 7th November, 1870] . 
I BEG now to lay before the Society the conclusion of my 
descriptions of Longicorn Beetles from the Amazons 
(continued from p. 385) . 
Earn. CERAMBYCID^, 
Sub-fam, CoMPSOCERiM. - 
Genus Orthoschema. 
Thomson, Classif. des Ceramb. p. 661; Lacord. Gen. ix. 
35. 
Syn. Orthostoma, Serville (nom. prae-occ.) . 
1. Orthoschema alhicomie. 
Ceramhyx alhicornis, Fab. Syst. El. ii. 269. 
Elongatumy depressum, viridi-aeneum, supra opacum, 
subtus nitidius, griseo tenuiter pubescens ; capite J 
latitudine thoracis, hoc angulis posticis porrectis ; an- 
tennis articulis tribus terminalibus testaceo-albis ; elytris 
sub-cyaneis, apice anguste emarginatis, angulo suturali 
producto. 
Long. 7|-9 lin. $ . 
This species seems to have been overlooked by authors, 
although the description of Fabricius is tolerably good. 
He gives the four last joints of the antennae as white; 
showing that he had the male onl}^ before him, in which 
the eleventh joint is ^‘^appendiculate.^"’ The species re- 
sembles 0. ahdominale of Serville, the type of the genus, 
but is rather narrower, has green abdomen, emarginate 
apices to the elytra, &c. The antennal joints 3-8 have a 
short spine at the apex within, most prominent in the $ . 
Hah. — Para. 
TRANS. ENT. SOC. 1870. PART IV. (DECEMBER.) E E 2 
