COLLECTED AT SINCAl'OKE AND MALACCA. 21 



slender, very luucli longe'r than the 3rcl jomt. Thorax hoary, with four 

 black stripes. Scutellum tawny towards the tip. Abdomen obconical, 

 hardly longer than the thorax, with a broad hoary band on each segment. 

 Legs slender, hardly setose. Wings grey, brownish in front ; veins black ; 

 prsebracliial vein forming a slightly obtuse angle at its flexure, from whence 

 it is slightly cirrved inward to its tip ; disoal transverse vem straight except 

 a shght curve by its hind end, parted by much less than its length from 

 the border, and by rather more than its length from the flexure of the prse- 

 braeliial. Alulae wliite. Length of the body 3 Unes ; of the wings 6 lines. 

 Singapore. 



Gen. Zambesa, n. g. {Plate I. fig. 2.) 



Mas. Corpus longum, angustum, subcylmdricum. Fades verticaUs, subrc- 

 tracta. Facialia nuda. Epistoma planmn. Palpi longiusculi, sat gra- 

 ciles. Ardennarum articidus 3"^ gracflis, linearis, 2° sexties longior ; arista 

 gracilhma. Oculi nudi. Abdomen lineare, thorace nualto longius. Pedes 

 longiusculi. Ala sat angustse. 



Male. Body long, narrow, almost cylincfrical. Face vertical, shghtly retracted 

 towards the base. Facialia without bristles. Eyes remote, bare. Palpi rather 

 long and slender. Antennae extending to the epistoma ; 3rd joint slender, 

 hnear, rounded at the tip, six times the length of the End ; arista very 

 slender, rather longer than the 3rd joint. Abdomen linear, much longer 

 than the thorax. Legs rather long. Wings rather narrow ; costal vein 

 ending at hardly in front of tlie tip of the wing ; brachial vein joining the 

 cubital. 



71. Zambesa octptero'ides, n. s., mas. Nigra, capite albo, fi-ontalibus 

 atris, antennarum articulo 3" fulvo, thorace cano nigro-quadrivittato, ab- 

 dominis fasciis duabus latis rnterruptis semihyaluais albido-testaceis, femo- 

 i-ibus testaceis apice nigris, tibiis piceis, alis hmpidis, apice margineque 

 postico cinereis. 



Male. Black. Head white, with short white hafrs beneath ; frontalia deep 

 black, linear. Proboscis testaceous. Palpi black. Third joint of the an- 

 tennae tavmy. Thorax hoary, with four black stripes, of which the outer 

 pair are very much broader than the mner pair. Abdomen a httle narrower 

 than the thorax, with two broad wliitish testaceous semihyaUne bands which 

 are interrupted above. Femora testaceous, with black tips ; tibiae piceous. 

 Wings lunpid, grey towards the tips and along tlie hind borders ; veins 

 black ; preebracliial vein forming an obtuse angle at its flexure from whence 

 it is slightly curved inward to its tip, wliieh joins the cubital very near the 

 border ; discal transverse vein very slightly curved inward, parted by less 

 than its length from the border, and by more than its length from the 

 flexure of the praibrachial. Alidae wliite. Length of tlie body 5 Unes ; of 

 the wings 10 hnes. 



Singapore. 



Sublain. Dexides, Walk. 

 Gen. Dexia, Meujen. 



72. Dexia DivEKaExs, n. s. (gen. Thelaira, Desi\), mas. Cana longa an- 



