176 
Psyche 
[June 
Host— Eciton hamatum (Fab.) 
Described from one specimen. 
Near E. asperatus Reich.; described from a colony of Eciton 
quadriglume (Rio Negro, Parana), but wheeleri is larger and 
lighter colored, with nonstriated elytra; the pronotal marginal 
swellings are shorter and distinctly terminate before posterior 
border, those on the sides of elytra smaller and divided by a 
transverse suture. Both species are remarkable not only for 
their elongate forms and the large pronotal and elytral marginal 
masses, but especially for their strong bristles, thickest at baes 
and pointed apically, quite spikelike. E. caroli Reich., the type 
species of the genus, was taken in a file of Eciton burchelli at 
Blumenan, Brazil, and probably E . wheeleri is also a file guest. 
Tylois barberi sp. nov. 
Length 2 . 5 mm. 
Form broad, convex above; uniformly dark reddish brown, 
shining. 
Vertex feebly concave, very coarsely and foveolately punc- 
tate, sides with an elevated, rounded margin, sides of front 
strongtly and broadly elevated as thick carinae which diverge 
anteriorly and enclose a narrow triangular flat median surface, 
separated from the clypeus by an arcuately impressed line. 
Clypeus three times as broad as long, strongly emarginate at 
anterior border. 
Pronotum less than twice as broad as long, sides convex in 
front of middle, impressed behind anterior angles, anterior 
border truncate at sides, with the angles rounded, border bi- 
concave, median portion rounded, posterior corners rounded, 
the border truncate at sides of impressions, feebly arcuate at 
middle, surface with coarse scattered punctures, variable in 
size and sparse on posterior portion and sides, abundant at 
middle of anterior fifth, sparse and irregular at lateral borders; 
disc convex in front of middle, flattened behind at middle and 
at sides with a pair of large and very profound pits, which are 
bordered inwardly by short, rather feeble and rounded carinae 
and separated from the lateral portions by strong, moderately 
elevated, rounded carinae; lateral portions not separated from 
