308 Mr. Westwoop on Diopsis, 
dupld longiores, fusco-piceze. Ale immaculate. Abdomen clavatum (tho- 
racis latitudine in ejus parte posticà), nigrum, apice piceo-fuscum. Pedes 
antici fusco-rufescentes, femoribus incrassatis, paginà posticà infuscata, 
tibiis fuscis, tarsis obscuris. Pedes intermedii fusco-rufescentes, femoribus 
inermibus. Femora postica fusco-rufescentia, apice obscura, inermia, tibiis 
posticis fuscis in medio annulo pallidiori, tarsis obscuris. 
A single specimen of this insect is contained in the cabinet of the Linnean 
Society, and is the only individual belonging to this genus at present existing 
in the collection, into which it was evidently introduced by Sir J. E. Smith, 
the label attached to it, giving its habitat and the name of its captor, being in 
the handwriting of our late President. 
Species 18. Diopsis confusa. Wied. 
* Picea, capite pedibusque ferrugineis, tibiis piceis.” Wied. 
* Long. corp. lin. 3." Wied. 
* Habitat in Angola, Sumatra, Congo. Mus. Dom. de Sehestedt.” Fabr. 
* Aus Afrika. In Koniglichen Museum zu Kopenhagen." Wied. 
Diopsis ichneumonea. Fabr. Syst. Antl. 201.1. Dalman, Anal. Ent. 3. 4. 
Diopsis confusa. Wiedemann, Auss. Zweifl. Ins. vol. ii. p. 563. No. 7. 
* Statura parva, elongata Loxocere. Caput orbiculatum, parvum, rufum: cor- 
nubus duobus parvis, erectis labii. Oculi pedunculo elongato, cylindrico, 
capite longiori inserti, globosi, nigri. Thorax gibbus, ater, postice spinis 
duabus elongatis, acutis. Abdomen atrum, compressum, basi angustatum. 
Ale hyaline. Pedes testacei, tibiis posticis nigris. Variat forte sexu spi- 
nis thoracis atris et rufis." 
The above is the original Fabrician description of an insect, which, as indi- 
cated by Dalman and Wiedemann, is perfectly distinct from that of the Linnzean 
species, with which Fabricius confounded it. Wiedemann, drawing his original 
description from a specimen in the Royal Museum at Copenhagen, from Africa 
(Sehestedt's specimen ?), states that the “ labii cornua erecta" of Fabricius are 
a pair of horizontal porrected (* vorragende") spines at the lower extremity of 
the face: the legs, he says, are neither rufous (rufi, * rothlich,”) nor testaceous 
(testacei, * zeigelroth”), as described by Fabricius, but of a rusty yellow colour 
