228 Mr. R. McLachlan on the 
(much sooner in the posterior), the radius confluent with its 
upper branch before the apex ; apparently no costal nervules ; 
three nearly equidistant nervules between the upper branch 
of the sector and the radius; five complete whitish vitte, one 
placed in each of the principal areas. 
Length of body (much extended) 7-8 millim.; expanse 
114-124 millim. 
Three examples, gummed on card (Blackburn, Nos. 12 
and 19). 
The Indian O. Saundersii, Westw., has the body testa- 
ceous. 
A specimen in my collection from Antigua (7. A. Mar- 
shall) is so similar to O. insularis that I hesitate to separate 
it therefrom; this has been erroneously recorded as a Man- 
tispa (!) (cf: Proc. Ent. Soc. Lond. 1878, p. xxxiv). 
Psocidee. 
Psocus, sp. ? 
One unexpanded specimen, on card, with the wings gummed 
together, appears to me incapable of identification. It is pro- 
bably very close to the European Ps. bifasciatus, Latr. (also 
found in North America) ; and were it not for a difference in 
the markings of the head, it might (in its present condition) 
be considered identical therewith; perhaps even it is really 
that species. (Blackburn, without No.) 
Elipsocus vinosus, n. sp. 
(Body destroyed.) Antenne (fragments) apparently 
blackish, slender. Legs pinkish (or very pale claret- 
coloured) ; tibia and tarsi with rows of minute black tubercles, 
the bases of fine short hairs. 
Wings vitreous, scarcely tinged (under the microscope the 
membrane is seen to be studded with very minute closely- 
placed black points); neuration apparently reddish brown ; 
pterostigma elongate, gradually dilated to the oblique apex, 
bright claret-coloured ; posterior marginal cellule large, sub- 
triangular, the apex rounded. In the posterior wings the 
neuration appears to be blacker. 
Expanse about 43 millim. 
One much mutilated example, gummed on card (Blackburn, 
No.. 13). 
N.B.—Nothing but the insular habitat, combined with the 
presence of apparently striking characters, could have induced 
me to bestow a name upon this mutilated specimen. 
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