52 
Psyche 
[March- June 
nym of A. fissifrons Fairm., and the name tetrastictus Obb. 
(l. c.) must apply to a variety of A. fissifrons Fairm., the 
type of which has each elytron marked with a single spot. 
Fairmaire’s species is represented in my own collection by 
a paratype. 
Genus Trachys F. 
Trachys darlingtoni n. sp. (PI. IV, Fig. 9) 
Length: 2.5 mm.; breadth: 1.6 mm. Oval, rounded in 
front, attenuate posteriorly, broadest at the shoulders, 
rather flattened above, with the scutellar region slightly 
convex and glabrous; the rest of the surface ornamented 
with designs of whitish pubescence forming two ante-apical, 
very sinuous fascise which join in several places, and a trans- 
verse, very irregular, inconspicuous band in the middle ; the 
space between the designs clothed with yellow, sparse, semi- 
erect pubescence. Above, of a bright brassy color ; beneath, 
dark bronze; the four first joints of the tarsi, and the palpi, 
yellow; the last joint of the tarsi, and the antennae, black. 
The scutellar region appears to be normally glabrous (it is 
so in the four specimens examined) . 
Head very wide, shining, obsoletely punctate, with the 
front and vertex furrowed, the furrow reaching a wide, well 
marked impression above the epistoma; the latter rugose, 
distinguishable from the front only by the sculpture, emar- 
ginate in front. Eyes small, regularly elliptic, very oblique, 
and not prominent. Antennae very short, serrate from the 
seventh joint, with a few long, rigid hairs. 
Pronotum widest at the base, short; anterior margin 
emarginate, with a median, feebly projecting lobe; the 
anterior angles acute and feebly projecting, blunted at apex; 
sides moderately arcuate ; the posterior angles slightly 
obtuse. Base narrowly margined, with a feebly projecting 
median lobe which is broadly subtruncate in front of the 
scutellum. Disk regularly convex, impressed along the base, 
shining, indistinctly sculptured at middle, the sides marked 
with distinct circles. 
Scutellum small, equilaterally triangular. 
Elytra widest at the shoulders, the humeri rather promi- 
nent, the sides arcuately attenuate from the base to the tips, 
