800 SUPPLEMENT. 
OSORIUS (p. 677). 
Mr. Flohr confirms Mr. Champion’s statement that the smaller species of this genus 
live in sand on the banks of streams, while the larger ones inhabit burrows in rotten 
wood; and he also remarks that they possess the power of running backwards as well 
as forwards in their channels. 
Osorius salvini (p. 682). 
Before the localities given, insert :—Mexico, near the city, Cordova, Vera Cruz 
(Hoge). 
BLEDIUS (p. 685). 
1(a). Bledius armatus. 
Oxytelus armatus, Say, Journ. Ac. Sci. Phil. iii. p. 155°; Complete Writings, ii. p. 100°. 
Bledius armatus, Er. Gen. et Spec. Staph. p. 779°; Lec. Trans. Am. Ent. Soe. vi. p. 221°. 
Hab. Norts America 12°, Nevada to Arizona 4.—Mexico, near the city (Hége). 
Bledius inornatus (p. 685). 
Before the locality given, insert :—Merxico, Medellin (Flohr). 
Found in the sand on the banks of the river Jamapa. 
2 (a). Bledius derasus. 
Niger, prothorace rufo, antennis pedibusque flavis, elytris pallidis; prothorace parce obsolete punctato, medio 
canaliculato, angulis posterioribus obtusis ; elytris quam prothorax longioribus, crebre sat fortiter punctatis. 
Long. 5 millim. 
Hab. Mexico, Villa Lerdo in Durango (Hége). 
Head dull; antennal carine sharply elevated, elongate, red in front; mandibles 
rather short. Thorax not so long as broad, straight at the sides nearly to the hind 
angles, then much narrowed, the angles distinct though very obtuse; the surface quite 
dull, the distant punctuation obsolete. Elytra very pale yellow; coarsely punctate near 
the suture, more obsoletely so at the sides. Three examples. 
Kasily distinguished from B. inornatus by the more obsolete sculpture. 
PLATYSTETHUS (p. 686). 
Platystethus spiculus (p. 678). 
Before the localities given, insert :—MeExi0o, near the city (Hoge). 
