198 Annals Entomological Society of America [Vol. V, 
fluted groove. Metanotum as long as the mesonotum, gradually 
declivous and impressed behind along the middle, the upper angles 
produced into sharp, pale-tipped thorn-like spines. One complete, 
transverse angulated carina just behind the spiracles and traces of a 
small median basal area. Spiracles elongate, over twice as long as 
broad; position of pleural carina indicated by a fine denticulate line. 
Surface of metanotum rugulose, with distinct transverse aciculations 
medially behind, its pleurze very finely roughened. Mesopleura at the 
posterior margin with a grooved line which is crenate on its lower half; 
also with an arcuate linear impression above the center. Abdomen 
smooth, but opaque except on the petiole. Latter much broadened 
behind, the tip nearly four times as broad as the base; spiracles just 
before the posterior third; two carinze above each carina which grow 
weaker apically; center of broadened portion longitudinally depressed. 
Second segment the longest, one-fourth shorter than the petiole, longer 
than broad at tip; following transverse. Legs stout, not much elongated 
Wings with black, narrow stigma and black veins. Median and sub- 
median cells of equal length; cubito-discoidal vein broken, but little 
angulated by a slight tubercle. Areolet small, open, receiving the 
recurrent nervure near its outer angle; discoidal vein broken at the 
middle. 
One female from Camp 39, Madeira-Mamoré R. R. 
The generic reference is somewhat doubtful as the species 
has the stout antenne and heavy-set body of a true member of 
the Cryptini. The areolet is so small, however, not closed. 
externally, and of such characteristic Mesostenine form, that I 
think the species must be placed in this tribe, although it will 
probably find a place in a new genus. 
Crypturopsis Ashmead. 
There are two species in the collection obtained by the 
expedition, separable as follows: 
1. Wings darker at tips; abdomen banded with black........... minor Sp. Nov. 
Wings not darker at tips; abdomen not banded with black. . brasiliensis sp. nov. 
Crypturopsis brasiliensis sp. nov. 
Male. Length 11 mm. Head and thorax black with yellowish- 
white markings; abdomen and four anterior legs ferruginous; hind legs 
black beyond the trochanter. Wings subhyaline. The pale markings 
are as follows. Head both before and behind, below the level of the 
antenne; inner orbits to the ocelli; large spot on each side of prothorax 
before and small one behind; four very much abbreviated longitudinal 
streaks on the mesonotum behind; spot on scutellum, a spot on each 
side of metanotum inward from the spiracle and a larger triangular one 
behind on each side; tegule, dash beneath them; two broad horizontal 
stripes on mesopleura; small basal and large medial spot on metapleura; 
middle part of fore coxa and middle coxa (except for irregular ferrugin- 
