MR. A. MURRAY'S MONOGRAPH OF THE FAMILY OF NITIDULARLE. 413 
3. MYSTROPS DEBILIS. 
Erichs. in Germ. Zeitschr. iv. 235 (1843). 
Subdepressus, pallide testaceus, thoracis disco piceo, subtiliter pubescens; antennis 
_eequalibus in utroque sexu, capitis thoracisque longitudine. Long. 1} lin. 
Habitat in Brasilia. 
About the size and appearance of Cercus pedicularius; oblong, pale testaceous, closely 
punctate, and finely griseo-pubescent. Antenne equal in both sexes, about the length 
of the head and thorax; the first article not very long, rather stout; second, third, and 
fourth somewhat longer; fifth, sixth, seventh, and eighth rather shorter; the ninth 
elongate, and the club composed apparently of only two articles. Head impressed on 
each side in front with a small pit. Thorax transverse, slightly narrower in front; 
base bisinuate ; anterior angles obtusely rounded; posterior angles somewhat projecting 
backwards; the disk longitudinally piceous. Scutellum moderate. Elytra long and 
subparallel, once and a half the length of the thorax, sides declinate, rounded, margined ; 
apex truncate; exterior apical angles broadly rounded; sutural apical angles subrectan- 
gular, rounded at the point. 
From Brazil. In the Berlin and the British Museums. 
4. MysrROPS FLAVICANS. (Plate XXXII. fig. 3.) 
Cercus flavicans (Dej. Cat. 137, 1843). 
Affinis M. debili, sed duplo minor, textura molli et delicata: testaceus, levissime pu- 
bescens, oblongus, subdepressus ; antennis longitudine fere dimidii corporis, tenuibus, 
articulis ut in M. discoideo, sed clava minore et breviore; elytris apice truncato, 
angulis exterioribus rotundatis, sutura utrinque sublineata. Long. 1-1 lin., lat. 3 lin. 
Habitat in Brasilia. 
Allied to M. debilis, but only half the size, of a soft and delicate texture. Testaceous, 
very slightly pubescent, oblong, subdepressed. Head with a deep transverse and oblique 
impression on each side in front. The antennz about half the length of the body, 
slender, with the articles as in JM. discoideus, but with a smaller and shorter club 
(Pl. XXXII. fig. 34). Thorax not much narrower in front than behind, impressed on 
each side in the middle, with the anterior angles inflexed and rounded, the posterior 
almost flat and right angles, truncate at the base. Scutellum triangular. Elytra sub- 
parallel, with the sides inflexed and rounded, a faint line impressed on each side of the 
suture, the apex truncate and its outer angles rounded. 
Found in Brazil. In the British Museum. 
5. Mysrrops DISPAR (Klug).. 
Erichs. in Germ. Zeitschr. iv. 235 (1843). 
Breviter oblongus, levissime punctatus et breviter pubescens, testaceus, thoracis disco, 
elytrorum regione scutellari, lateribus et apice pallide piceis ; antennis maribus cor- 
pore duplo longioribus, articulo secundo brevi; thorace sat convexo,- transverso, 
VOL. XXIV. 3H 
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