various Central American Coleoptera. 113 
the anterior angles projecting a little forwards, obtuse, the hind 
angles acute, the base slightly sinuate; the surface sparsely, irre- 
gularly punctate, the convex portion of the disc limited outwards 
by a stout longitudinal callosity, the basal sulcus and foveae very 
deep. Elytra moderately long, a little wider than the thorax, 
narrowing from about the middle; regularly punctate-striate, the 
interstices almost smooth. Beneath very finely punctate. 
Length 4-5 mm. (¢ 9.) 
Hab. Amazons, Santarem (Bates), Anand, R. Solimoes 
(Trail). 
Three specimens. } 
LATHRIDITDAE. 
PSEUDEVOLOCERA, N. gen. 
Head retractile, small; antennae (fig. 16a) apparently 10-jointed, 
the basal joint very stout, the last three connate and forming a 
very large oval club; palpi stout; eyes small; prothorax with a 
deep basal groove; scutellum transverse; prosternum with large 
fossae for the reception of the antennal club, the sutures deep, 
the intercoxal process broad, parallel between the anterior coxae, 
truncate behind, and extending convexly forward across the long 
ante-coxal portion to the apical margin; anterior acetabula closed 
by the short mesosternum ; metasternal lines present; first ventral 
segment about as long as the other four segments united, the inter- 
coxal process very broad, truncate in front; legs very short ; femora 
compressed, clavate, received in depressions of the under surface ; 
tibiae broad; tarsi slender, 3-jointed, joints 1 and 2 very short; 
body ovate, glabrous. 
Type, P. atomarioides. 
This genus is nearly related to the monotypic Evolocera, 
Sharp, from which it differs in having the head much 
smaller; the antennal club 3-jointed; the prosternum 
much more developed before the anterior coxae, and with 
a large pit on each side for the reception of the antennal 
club; the coxae more widely separated, the convex inter- 
coxal process of the anterior pair extending forwards to 
the anterior margin; the coxal lines present on the meta- 
sternum, but scarcely traceable on the first ventral segment, 
the latter about as long as the following four segments 
united. The slender intermediate joints of the antennae 
(3-7) are so closely articulated that it is possible another 
TRANS. ENT. SOC. LOND. 1913.—PARTI. (JUNE) I 
