OMALIUM.—MICROPEPLUS. TAT 
8. Omalium leticulum. (Tab. XIX. fig. 24.) 
Parvum, depressum, subopacum; nigrum, prothorace rufo, elytris fusco-rufis, antennarum basi pedibusque 
testaceis ; parcius obsolete punctatum ; prothorace medio bi-impresso. 
Long. 2 millim. 
Hab, GuateMALa, Totonicapam 8500 to 10,500 feet (Champion). 
Antenne short ; the four basal joints yellow, the others dark, the sixth joint transverse 
but not broad. Thorax strongly transverse, slightly sinuate at the sides, the hind 
angles rectangular ; the disc with two broad, short, rather widely separated depressions ; 
the surface alutaceous, almost impunctate. Elytra twice as long as the thorax, 
sparingly, very finely, and obsoletely punctured. Seven examples. 
Subfam. MICROPEPLIN A. 
MICROPEPLUS. 
Micropeplus, Latreille, Gen. Crust. et Ins. iv. p. 377 (1809); Erichson, Gen. et Spec. Staph. 
p. 911 (1840). 
This peculiar genus of about twenty species has hitherto been supposed to be 
confined to the northern portions of the globe, its species being about equally divided 
between the New and the Old Worlds. The existence of a Micropeplus so far south 
as Guatemala was quite unexpected. 
1. Micropeplus acumen. (Tab. XIX. fig. 25.) 
Fusco-piceus, antennis pedibusque testaceis, prothorace utrinque flavo-signato; prothorace elytrisque costatis ; 
abdomine acuminato, multicostato. 
Long. 13 millim. 
Hab. Guaremata, Cahabon, El Tumbador (Champion). 
Head very short and broad. Thorax very strongly transverse, broader than the 
elytra, the sides angulate in the middle, the hind angles acute, and with a very minute 
angulation between the latter and the middle angle; quadricostate, the outer coste 
less distinct and regular than the inner ones. Elytra short, rather longer than the 
thorax, each with three strongly raised coste in addition to the raised suture. Hind 
body short, strongly acuminate ; each of the three basal segments with six, the fourth 
segment with four, raised carine. | 
This is a very distinct Micropeplus and the smallest as yet known of the genus. 
Only one example was procured in each locality ; one of them is more ferruginous in 
colour than the other, such variation being common to the other species of the genus. 
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