various Central American Coleoptera. 161 
Hab. GuatrmMaua, San Gerdénimo in Baja Vera Paz 
(Champion). 
One example only was obtained of this species, which is 
easily recognisable by its small size and black coloration, 
the thorax with a large rufous patch on each side. *P. 
mexicanus, Pic [L’Echange, xvii, p. 95 (1901)], must be 
an allied form. It is described thus: ‘‘ Allongé, subparal- 
léle, peu brillant, revétu d’une trés fine pubescence grisatre, 
entiérement noir y compris les antennes et les pattes, a 
l'exception seulement du labre et de la base des mandibules 
qui sont roussatres ; téte assez petite; antennes progressive- 
ment dentée 4 partir du 4™° article; prothorax court, 
fortement dilaté-arrondi en arriére, explané sur les cotes ; 
élytres & peu prés de la largeur du prothorax, trés longs, 
faiblement striés. Long. 4-5 mill—Mrxique, ‘Sierra de 
Durango ’ (coll. Pic).”’ 
CIOIDAE. 
Cis. 
Cis, Latreille, Préc. Car. Gen. Ins. p. 90 (1796); Gorham, 
Biol. Centr.-Am., Coleopt. ii, 2, pp. 220 (1883), 357 
(1886). 
Gorham enumerated sixteen species of this genus from 
Central America, three of which he did not name. One 
other is here added, received some time after his work was 
published. 
*Cis M-nigrum, n. sp. 
Elongate, convex, shining; piceous, the elytra fusco-testaceous, 
with a common sharply-angulate, post-median, nigro-piceous 
fascia, the labrum, base of antennae, and legs testaceous; the 
entire upper surface densely, somewhat coarsely punctate, each 
puncture (seen under the microscope) bearing an excessively minute 
squamiform hair. Head broad, unarmed, the transverse, arcuate, 
inter-antennal groove deep, the epistoma very short, truncate in 
front; eyes small; antennae 10-jointed, 3 elongate, 4—7 small, the 
3-jointed club moderately stout. Thorax ample, broader than 
long, longitudinally convex, a little narrower at the base than at the 
apex, rounded at the sides, the margins narrowly explanate and very 
prominent. Elytra about twice as long as the thorax, narrowed at 
the base and there considerably narrower than the latter. 
Length 23, breadth 1 mm. 
TRANS. ENT. SOC. LOND. 1913.—PARTI. (JUNE) M 
