LONGICORNIA. 325 
forehead is not separated from the lateral space near the eye by a continuous raised 
line, but there are traces of a sharp limitation. In general form and sculpture, however, 
the genus bears no resemblance to T'ragidion, the form being convex and nearly cylin- 
drical, with the surface densely and finely sculptured, without coste or other inequali- 
ties. The antenne resemble those of Zragidion annulatum, but the joints are more 
densely hairy at their apices. 
1. Scythroleus picticornis. 
Cylindricus, robustus, obscure niger, subsenescens; antennis articulis 4°-11™ basi, maculaque verticis, rufis ; 
capite thoraceque grosse et confluenter punctatis; scutello alutaceo; elytris confertissime minute con- 
fluenter punctatis ; subtus fusco-pubescens, minute punctatus. — 
Long. lin. 3lin. 9. 
Hab. Mexico, Bay of Tehuantepec (Baden, coll. Bates). 
TYLOSIS (p. 81). 
Tylosis maculata (p. 81). 
Having had an opportunity of examining a typical specimen of this species, named by 
Leconte, in the Sallé collection, I find it is distinct from the Mexican species, which I 
describe below as T. puncticollis. It is broader in form, with a broad subspherical 
thorax. No Mexican specimen agreeing with it in form or markings, the species must 
be withdrawn, as not belonging to our fauna. 
1 (a). Tylosis puncticollis. 
Tylosis maculata (p. 81), nec Leconte. 
T’. angusticolli proxime affinis, differt thorace semper lateribus distinctius (sed leviter) rotundatis, prosterno 
nigro, elytrisque macula mediana elongata valde obliqua; ceteris sicut in 7’. angusticolli. 
Var..1. Macula circumscutellari nulla. (7. puncticollis, Klug, MS. sec. coll. Salle.) 
Var. 2. Macula mediana cum macula apicali per suturam conjuncta; macula circumscutellari magna, interdum 
deficienti. (7'. leta, Sturm, MS. sec. coll. Salle.) 
Long. 44-7 lin. SQ. 
Hab. Mexico, Puebla, Izucar, Cuernavaca (Sallé), Oaxaca (Sallé, Hoge). 
The typical form, 7. e. with the circumscutellar spot and median streak distant from 
the apical spots, exists in some collections as 7. scutellaris, Chev. MS.; but the MS. 
name of the species, 7. puncticollis, Klug, appears to be the most generally adopted. 
Tylosis oculata (p. 81). 
To the locality Mexico, add :—Ventanas (Forrer), Vera Cruz, Izucar, Puebla (Sal/é), 
Misantla, Almolonga (Hége). 
Tylosis angusticollis. 
Tylosis sellata (p. 81), nec Leconte. 
Angusta, thorace fere cylindrico ; nigra, thorace supra et elytris coccineis, illo callis levibus quinque, his macula 
