308 Mi\ Westwood on Diopsis, 



duplo longlores, fusco-picese. Alte immaculatse. Ahdo^neti clavatum (tho- 

 racis latitudine in ejus parte postica), nigrum, apice piceo-fuscum. Pedes 

 antici fusco-rufescentes, femoribus incrassatis, pagina postica infuscata, 

 tibiis fuscis, tarsis obscuris. Pedes mtermed'd 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." JVied. 



" Habitat in Angola, Sumatra, Congo. Mus. Dom. de Sehestedt." Fah\ 



" Aus Afrika. In Koniglichen Museum zu Kopenhagen." fVied. 

 Diopsis ichneumonea. Fair. Syst. Antl. 201. 1. Dal/nan, Anal. Ent. 3. 4. 

 Diopsis coufusa. Wiedemann, Auss. Zweijl. Ins. vol. ii. p. 563. No. "J. 



" Statura parva, elongata Loxocerce. 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. 

 Alee hyalinse. 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 Linnaean 

 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 



