BARBADOS-ANTIGUA REPORTS 23 
length; color bright yellow with a very narrow piceous margin all around, 
broader posteriorly and with a conspiculus crescent-shaped black area on 
the anterior two-thirds which reaches the anterior margin of the disk; 
meso- and metanotum yellow. Organs of flight abbreviated as in all 
species of the genus; tegmina subquadrate, just barely longer than the 
pronotum and overlapping somewhat when closed, the apical margin trun- 
eate with rounded angles; color yellow with the anal margin a little in- 
fuscated, that of the right one with a very distinct longitudinal sub- 
marginal stripe limiting that portion covered by the left tegmina when 
closed; wings shorter than the tegmina, folded once longitudinally when 
at rest. 
Legs short and moderately stout; trochanters, coxe and femora mostly 
yellowish or yellowish brown, the femora with dark spines and the tro- 
chanters lined basally with black; anterior and intermediate tibie and 
tarsi yellowish brown, the posterior ones darker, all with blackish spines; 
all femora armed beneath on both margins with several stout spines, the 
anterior ones with 8 to 11 and two longer apical ones on the anterior 
margin and four on the posterior margin; tarsi with conspicuous, usually 
light colored, pulvulii and with very large and thick apically truncate 
arolia. 
Abdomen heavy, black in color, with the basal five or six segments 
marked above and below with a small lateral yellow spot and the basal 
dorsal segment partly yellowish on the basal half or more; supraanal 
plate fully twice as long as broad in the male, less than twice as long as 
broad in the female, the posterior margin broadly notched, more roundly 
so in the female; subgenital plate of the male about four times as broad 
as long, the basal width being about equal to the apical width of the 
preceding segment of the abdomen; apical margin almost straight, notched 
at each side at the point or origin of a pair of strong apical styles, which 
are gradually pointed and about five times as long as the basal width; 
subgenital plate of the female with the valves occupying over one-half 
their length and terminating at a deep transverse incision, the valvular 
area very distinct from the broad basal portion by reason of the lateral 
margins of the valvular portion being turned under so as to almost meet, 
forming a chitinized triangular funnel, the inner side of which is divided. 
by two submesial longitudinal membraneous partitions, the base of the 
channel thus formed having a covering of very fine yellow hair of con- 
siderable length on the surface formed by the plate, and some similar but 
shorter hairs outside this channel on the undersurface of the plate itself, 
and the entire surface, the outer walls of the membraneous channel and 
all, with numerous short and very small, but sharply pointed, tubercles. 
Cerci broad and short, but moderately surpassing the supraanal plate, 
especially in the female, and consisting of about ten segments, all of which 
are transverse except the apical one which is slightly elongate and sharply 
pointed. 
