MICROZURUS. 89 
MICROZURUS. 
Microzurus, Heller, Abhandl. Mus. Dresd. no. 11, pp. 3, 13 (1895). 
Microzurus is based upon a single species from Bahia, which also occurs within our 
limits. It differs from Zurus in having very minute tarsal claws, the posterior femora 
only dentate, &c. Two small forms are now added, one with a very shallow mesosternal 
depression, a short, feebly convex prothorax, &c., and the other with unarmed posterior 
femora and a flattened mesosternum. 
1. Microzurus rhombus. (Tab. VI. figg. 9, 9a.) 
Microzurus rhombus, Heller, Abhandl. Mus. Dresd. no. 11, p. 13, fig. 31 (antenna) '. 
Hab. Mexico, Cerro de Plumas, Atlantic slope (Hége).—Brazit, Bahia !. 
One specimen. I have not seen cither of the types, but the Mexican insect agrees 
fairly well with the description, except in its smaller size (length 24 millim.). The 
elytra have the apical half of the suture densely clothed with whitish scales. 
2. Microzurus trinotatus, sp. n. (Tab. VI. figg. 10, 10 a.) 
Rhomboidal, shining, black, the apical margin of the elytra and the tarsi ferruginous ; the elytra with a spot 
on each side of the scutellum and another on the suture beyond the middle, this latter extending down 
the suture to the tip and continued along the apical margin, densely clothed with rather coarse white 
scales, the lower part of the head, the basal half of the rostrum, and the flanks of the prothorax also 
somewhat thickly, and the rest of the under surface and the legs sparsely, albo-squamose. Eyes narrowly 
separated above, subcontiguous in front, the infra-ocular portion of the head broad and flattened. 
Rostrum strongly arcuate, rather stout, rugulose and carinate at the base, the apical half almost smooth. 
. Joint 2 of the faniculus much shorter than 1. Prothorax about twice as broad as long, narrowing from 
the base, somewhat convex, the median lobe narrow ; coarsely, closely punctate, without trace of median 
carina. Elytra cordate, convex, much wider than the prothorax ; deeply punctate-striate, the interstices 
smooth and sharply costate. Mesosternum with the oblique lateral lamina feebly developed, the broad 
intervening space slightly depressed. Legs short; femora sulcate beneath, the posterior pair only dentate, 
finely carinate externally ; tarsi moderately stout, the claws very minute. 
Length 13, breadth 1 millim. 
Hab. Panama, Bugaba (Champion). 
One specimen. 
3. Microzurus edentatus, sp.n. (Tab. VI. figg. 11, 11a.) 
Rhomboidal, convex, black, the elytra mottled with ferruginous, the head, rostrum, antenns, knees, tibie, and 
tarsi similarly coloured; variegated above with small, narrow, scattered, ochreous, whitish, and black 
scales, the ochreous and whitish scales condensed into a short streak at each hind angle of the prothorax, 
and an interrupted ante-median fascia and an apical patch on the elytra, the vestiture of the legs and: 
under surface entirely pale. Eyes rather small, oval, contiguous. Rostrum moderately stout, feebly 
curved, slightly widened towards the tip, thickly punctate, except along the smooth median line, Joint 2 
of the funiculus shorter than 1. Prothorax convex, transverse, narrowing from the deeply sinuate base, 
feebly constricted in front; densely, finely punctate, and also carinate. Scutellum minute, depressed, 
hidden by the median lobe of the prothorax. Elytra transversely convex, broad, cordate, blunt at the 
tip; punctate-striate, the interstices narrowly costate. Mesosternum transversely depressed, without 
BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 5, December 1906. NN 
