538 STAPHYLINID &. 
serial in its arrangement. Hind body infuscate yellow, with the two apical segments 
more clearly yellow. Legs yellow, the tibie sordid. 
Of this species also we have received but one female example. It does not appear to 
be very closély -allied to any other ; it differs from L. guatemalense in the shape-of the 
head, which is less truncate behind, with the angles more rounded. 
4, Lathrobium relictum. 
Fulvo-testaceum, nitidum ; capite minore, parce punctato; prothorace medio biseriatim punctato, utrinque 
crebre punctato ; elytris hoc vix longioribus, seriatim punctatis. 
Long. 42 millim. 
Hab. Muxico, Cordova (Hége); Guatemata, Duefias (Champion). 
Head rather small, with a few coarse punctures irregularly placed, most distinct in 
front. Thorax oblong, quite parallel-sided, with moderately numerous punctures at 
the sides, but with the dorsal series distinct from the lateral punctuation, these series 
widely separated. Elytra slightly longer than the thorax, the punctuation serial, the 
punctures rather large though shallow. Legs yellow. 
This insect, though similar to the pallid variety of L. dimidiatum, will be readily 
distinguished by the more abundant punctuation on the thorax and wing-cases; only 
one female example was found in each locality. 
5. Lathrobium dimidiatum. | 
Lathrobium dimidiatum, Say, Tr. Am. Phil. Soc. iv. p. 455’; Leconte, Complete Writings of Thomas 
Say, u. p.570: Er. Gen. et Spec. Staph. p. 598°. 
Lathrobium rufo-partitum, Fairm. et Germ. Ann. Soc. Ent. Fr. 1861, p. 486°. 
Hab. Nortn America, United States} 2.—Guatemata (Sallé), San Geronimo, Cham- 
perico, Paso Antonio (Champion).—Sovutn America, Chili ®. 
Var. Capite, prothorace, elytrisque testaceis. 
Hab. Mexico, Presidio (Forrer). 
SCOP/ZOMERUS. 
Labrum bilobum, haud denticulatum. Caput collo angustissimo. Tarsi anteriores dilatati. 
The little insects for which this genus is established have the appearance of Scopeus 
with rather less slender antenne than usual. The structure of the labrum and front 
tarsi brings the genus near to Lathrobium, while the excessively slender neck is similar 
to that of Scopeus; the labrum is divided to the base by a very broad gentle excision, 
and I am unable to see any trace of denticulation. The penultimate joint of the 
maxillary palpus is short and much swollen as in Scopwus. The front femora are 
dilated, and the front tibie are moderately broad; the four dilated joints of the tarsus 
about equal in width. The posterior tarsi are moderately long and slender, the first 
