Mr. C. 0. Waterhouse on new African Coleoptera. 107 
XII. — On some Eastern Equatorial African Coleoptera col- 
lected bp Emin Pasha, with Descriptions of two new Longi - 
comia. By Charles O. Waterhouse. 
[Plate I. fig. 3.] 
The British Museum has lately received a series of insects 
from Eastern Africa, collected by Emin Pasha. Among 
them there is a mixture of East- and West- African species, as 
observed in my former paper (Proc. Zool. Soc. Lond. 1&88, 
p. 86) on the Coleoptera from the same source. Among the 
Longicorns the following may be noticed : — Anoplostetha 
lactator , F., Lophoptera asperula ) White, Natal species ; 
Xystrocera nigrita , Serv., Phryneta obscura , 01., and Moecha 
hecate , Clievr., West- African species. 
Cerambicidae. 
Ploccederus Emini , sp. n. (PI. I. fig. 3.) 
Piceo-niger, parum nitidus, pube flavo-grisea vestitus. Epistomo 
sat profunde emarginato ; antennis corpore longioribus, articulo 
basali crasso, rugoso, latitudine duplo longiore, basi vix angus- 
tato ; thorace sat brcvi, disco depresso, oblique plicato ; elytris 
rufo-piceis, basi, sutura margineque laterali reflexo nigrescentibus, 
ad apicem truncatis, angulo suturali acute spinoso, angulo extemo 
obtuse angulato. <$ . 
Long. 20 lin. 
This fine species is nearest to P. fucatus , Dej., but is larger 
and less convex, and differs from th at and all its allies in the 
colour of the elytra. The antennse have the basal joint very 
large, not quite twice as long as broad, with an obtuse ridge 
in front, extending to the middle of the joint. The third to 
sixth joints are swollen at the apex, with an acute angular 
projection ; the swelling at the apex of the seventh joint is 
less and the angular projection less acute. The thorax has 
the disk much Hatter than in P. fucatus , clothed with pale 
sandy pubescence ; with a fine longitudinal carina in front, 
and a fine transverse straight carina at the middle (angulated 
in its middle), and a longitudinal smooth space behind the 
middle ; the rest of the surface is marked by some undulating 
more or less oblique pleats. The elytra are less convex than 
in P . fucatus , very closely and very finely and evenly punc- 
tured, with larger punctures interspersed. The prosternal 
process has its apical portion almost parallel and very dis- 
tinctly bituberculate. 
