168 
Psyche 
[June 
prothorax, elytra, mesosternum, apical four abdominal segments 
and antennal joints except the three basal and the terminal, 
dark fuscous, remainder ferrugineous. Head, thorax, and elytra 
very finely, and ventral surface more noticeably, pubescent; 
stiff erect hairs sparse on margins of head and more abundant 
on body; fine and silky recumbent hairs in thin rows at margins 
of abdominal segments above. 
Head, excluding labrum, about as broad as long, vertex 
moderately convex, occipital border and sides behind eyes broad- 
ly rounded. Clypeus truncate anteriorly. Labrum transverse, 
broadly emarginate in front. Eyes longer than their distance 
to occipital border. Antennae extending a little beyond posterior 
border of pronotum; basal joint as long as the second and third 
together, second joint two-thirds as long as the third; joints 
four to ten transverse, the last two very strongly so, terminal 
joint conical and longer than the preceding two together. Pro- 
notum broader than long, broadest in front of middle, with 
feebly arcuate sides and posterior border, nearly straight an- 
terior border and rounded anterior and posterior angles; sur- 
face evenly convex. Elytra at base a little broader than pro- 
notum and at suture about as long as middle of pronotum; 
sides and posterior border nearly straight, posterior corners 
subangulate. Abdomen about as broad as elytra, sides nearly 
parallel to near tip. All joints of subequal length except the 
terminal of each tarsus. 
Type locality . — Barro Colorado, Canal Zone, Panama. 
August 1, 1924, W. M. Wheeler. 
Host. — Eciton hamatum (Fab.) 
Described from a small series taken with the host ant. 
This species has the middle coxae rather widely separated 
and the mesosternal lobe short and broad; the first four joints 
of the posterior tarsi are subequal, the first scarcely longer than 
the second and the fifth twice as long as the fourth, for which 
reasons I am placing it in Leptonia. L. picta Sharp, also known 
from Panama, is much larger with more elongate thorax and 
elytra and is quite differently colored. 
