MALACODERMATA. 347 
NIPTUS (p. 196). 
Niptus ventriculus? (p. 196). 
To the Mexican locality given, add :—Guanajuato (Sal/é). 
TRIGONOGENIUS (p. 196). 
2. Trigonogenius arcuatus. (Tab. XIII. fig. 20.) 
Fusco-brunneus, pilosus, squamis albis adspersus; antennis pedibusque brunneis; prothoracis disco linea 
mediana, margine basali, elytrorum fascia basali valde arcuata, scutello maculisque duabus, albo-squamosis ; 
elytris punctato-striatis. Long. 14 millim. 
Hab. Panama, Taboga Island (Champion). 
- The antenne in this species are longer and thinner than in 7. niveus, and with the 
joints nearly twice as long as broad, and somewhat serrate; the white markings are not 
so compact, the scales composing them being more scattered; the elytra are more 
globular, and the basal fascia of scales forms an irregular semicircle surrounding the 
shoulder; the body beneath and the legs (especially the tibie) are densely clothed 
with white scales; and it is smaller in size. ‘Two specimens. 
LASIODERMA (p. 198). 
Lasioderma serricorne (p. 199). 
To the Mexican locality given, add :—Presidio (Forrer), Jalapa (Hoge). 
ANOBIUM (p. 201). 
Anobium sericatum (p. 201). (Tab. XIII. fig. 17.) 
We now give a figure of the specimen presumed to belong to this species. It is 
apparently congeneric with the species here referred to Mtrosternus. 
LIOOLIUS (p. 203). 
1 (a). Lioolius exiguus. 
Oblongo-ovatus, subparallelus, piceus, nitidus, parcius punctatus ; capite fere levi. Long. 23 millim. 
Hab. Honpvuras (Sal/é). 
Rather more parallel.than L. punctatus, piceous without any blue tinge; the thorax 
and elytra more distinctly punctured than in any of the other species. Elytra very 
smooth and shining; a few very obsolete strie are just visible under a strong lens 
in their middle, neither reaching the base nor the apex. The thorax and the breast 
are a little more darkly pitchy than the elytra. 
Two specimens. 
2Y 2 
