
EXPEDITION TO SOKOTRA: NEW SPECIES. 19 
black. Pleura yellow, the sutures very broadly black, slightly bordered 
with reddish. Legs, including coxe and trochanters, reddish, tibiee mostly 
yellow on the outside. Petiole regularly curved, much broader in its hinder 
half, with a slight central groove, red, narrowly black at the base, and with 
a broad black median band, bifid in front, and rather pointed at the 
extremity, on its hinder half; on each side of this is a large yellow spot, 
before the extremity of the petiole. Below, there is a black median stripe, 
followed by a yellow spot before the extremity. Abdomen yellow above, 
with a longitudinal blackish stripe shading into reddish brown towards the 
extremity. At the base of the first dorsal segment it is bordered with 
reddish on both sides, and the middle of the first, the basal half of the second, 
and the greater part of the fifth dorsal segment are crossed by two broad 
transverse black bands. At the end of the fourth segment the median stripe 
is interrupted, but it is continued beyond the dark base of the fifth segment. 
Ventral segments yellow, the first reddish nearly to the extremity, and the 
sutures between the second and fourth narrowly black. Fore-wings smoky 
hyaline, with an iridescence becoming purplish in the radia] cell ; hind-wings 
clear hyaline. 
Resembles Z. sichelit, Sauss., from Albania, but the latter is a more slender 
insect, with no black markings (except narrow sutural lines) beyond the 
black transverse band on the middle of the first dorsal segment of the 
abdomen. 
Sokotra: Adho Dimellus (3000 ft., 9. II. 99). 
Rhynchium, Spinola. 
(14) Rhynchium versicolor. 
Long. corp. 14 mm. ; long. al. ant. 12 mm. 
Female. Head and thorax with large depressed punctures, abdomen with 
small scattered punctures, clypeus convex, almost pear-shaped, pointed below, 
where it is deeply channelled in the middle, postscutellum rounded behind, 
sides of median segment apparently rounded, abdomen with the basal 
segment hardly narrower, but scarcely more than half as long as the second. 
Head black above, as far as the base of the antenne ; above them stands 
a small transverse yellow mark. Head otherwise red, including the hinder 
orbits, ocular sinus, and antenne. Mesonotum and greater part of the 
* scutellum and mesopleura black. Pronotum red, with a yellow spot on each 
side in front. Mesopleura and mesopectus black, with a grey pile in the 
middle ; a large yellow spot, bordered below with red, below the tegule, and 
below this is another red mark. Tegule red, with a curved yellow spot 
above. Scutellum black at base, and reddish behind, with a transverse 
yellow stripe before the extremity. Postscutellum yellow, reddish in front, 
and the suture behind blackish ; sides of median segment yellow above, and 
red below. Abdomen red, the first and second segments banded behind with 
yellow ; first segment with a broad black central mark, constricted near the 
base, and not extending to the yellow band ; second segment with a broader 
continuous central black band, widest at each extremity ; third and fourth 
segments transversely blackish at the base. Ventral segments with the 
terminal depression of the first segment black, second segment with a black 
mark on the sides, in front of the end of the yellow band ; third and fourth 
segments blackish at the base and on the sides. Legs entirely red. Wings 
clouded hyaline, iridescent. 
Sokotra: Homhil, East Sokotra (1500 ft.), 21. I. 99 ; one specimen. 
