240 SUPPLEMENT. 
One example received from Mr. Flohr, differing in no respect from others from the 
United States. 
MALACOPTERUS (p. 15). 
Malacopterus lineatus (p. 15). 
Malacopterus mexicanus, Thomson (p. 15). 
Ganimus vittatus, Leconte, Smithson. Misc. Coll. part i. Long. p. 174°. 
To the localities given, add:—Norra America, California'—Mexico, Northern 
Sonora (Morrison), Cordova (Sallé), Misantla (Hoge); British Honpuras, Belize 
(Blancaneaux); Guaremaua, Cerro Zunil, Torola, Pantaleon, Pampojilaj, Cahabon, 
Volcan de Atitlan (Champion); Panama, Volcan de Chiriqui (Champion). 
Varies considerably in the form of the thorax, which, in the male, is relatively 
broader or longer, more or less rounded on the sides and narrowed in front; the 
sculpture and prominence of the raised dorsal line also varies. In size the species 
ranges from 6 to 15 lines. 
Guérin’s description fits the present species rather than a nearly allied one found 
also in Colombia and having similarly striped elytra, the words “‘ extrémité des articles 
des antennes noirs” applying to it and not to the allied (apparently undescribed) 
species, in which the joints 3-5 are wholly blackish and remarkable besides in being 
compressed and grooved. 
ATENIZUS (p. 15; to follow the genus Malacopterus). 
Atenizus, Bates, Ent. Monthly Mag. iv. p. 28 (1867) ; Trans. Ent. Soc. 1870, p. 244. 
The following is a second species of this singular genus, hitherto known only from 
the Amazons. Its affinities are in the direction of the genus Hime. 
1. Atenizus simplex. (Tab. XVIII. fig. 2.) 
A, laticipiti similis, sed differt antennis immaculatis pallidis articuloque tertio brevissimo quam 2" vix longiori.. 
Linearis depressus, pallide testaceus, undique (antennis pedibusque inclusis) densissime equaliter sub- 
erecte pubescens ; capite suborbiculato, oculis maximis, ante oculos brevissimo, tuberculo verticis magno. 
antice gradatim declivi; thorace angusto, ovato, sat grosse sparsim punctato ; elytris crebre punctulatis. 
Long. 34 lin. 9? 
Hab. Panana, Volcan de Chiriqui (Champion). 
One example only, apparently a female. 
SMODICUM (p. 15; to precede the genus Tristachycera). 
Smodicum, Haldeman, Trans. Am. Phil. Soc. x. p. 38 (1847) ; Lacordaire, Gen. de Col. ix. p. 145 ;. 
Leconte, Smithson. Misc. Coll. 265, part ii. p. 294. 
A genus of narrow and flattened bark Longicorns, the affinities of which, as in 
Parandra and Tapeina, are disguised by the modifications due to their peculiar mode 
