MR. WALKERS CATALOGUE OF DIPTEROUS INSECTS 



and not longer than the thorax. Legs testaceous j posterior femora piceous 

 above. Wings cinereous ; veins and halteres brown. Length of the body 

 2£ hnes ; of the wings 4£ lines. 

 Singapore. 



Gen. Eudmeta, Wied. 



16. Eudmeta marginata, Fabr. Syst. Antl. 63. 3. (Hermetia.) 

 Singapore. Inhabits also Java, Sumatra, and Hindostan. 



I 



Gen. Massicyta, n. g. {Plate I. fig. 1 .) 



Corpus longiusculum, sat angustuni. Caput trans versum, breve, thorace vix 

 latius. Antenna graciles, thorace paulld breviores ; articulus l u * linearis ; 

 2 US longi-fusiformis, 1° vix longior; 3 US acuminatus, minimus. Thorax 

 longi-ellipticus. Abdomen obclavatum, subpetiolatum, thorace plus dupld 

 longius. Pedes graciles. Alee elongatae, sat angustae. 



Body rather long and narrow. Head transverse, short, very little broader 

 than the thorax. Antennae slender, a little shorter than the thorax ; 

 1st joint linear ; 2nd elongate fusiform, very little longer than the 1st ; 

 3rd acuminated, very minute. Thorax elongate elliptical. Abdomen ob- 

 clavate, subpetiolated, a little more than twice the length of the thorax. 

 Legs slender. Wings rather long and narrow ; mediastinal, subcostal, 

 radial and cubital veins, and median veinlet of the usual structure ; 1st, 

 2nd and 4th externo-medial veins complete; 3rd abbreviated; subanal 

 joining the anal at some distance from the border ; discal areolet irregularly 

 hexagonal, elongated, narrower towards the tip of the wing. . 



17. Massicyta bicoloe, n. s., foem. Nigra, antennis basi testaceis apice 

 albis, pectore scutelloque flavis, illo nigro bimaculato, abdomine testaceo 

 fasciato, pedibus flavis, femoribus anterioribus tibiisque posticis fusco 

 fasciatis, femoribus posticis nigris, alis cinereis, apud costam subluridis. 



Female. Black, shining, with testaceous pubescence. Mouth testaceous. An- 

 tennae testaceous towards the base, white at the tips. Pectus and scutellum 

 yellow, the former with a large black spot on each side. Abdomen with 

 testaceous bands. Legs yellow ; hind femora black ; anterior femora and 

 hind tibia? with brown bands. Wings grey, with a slight lurid tinge along 

 the costa ; veins black. Halteres pale yellow. Length of the body 6-7 lines ; 

 of the wings 10-12 lines. 



Singapore. 



G-eii. Sargus, Fabr. 



18. Sargus longipennis, Wied. Auss. Zweijl. ii. 34. 11. 

 Malacca. Inhabits also Java. 



19. Sargus luridtts, n. s., mas. Ferrugineus, capite pectoreque testaceis, 

 antennis fulvis, abdominis segmentis testaceo-fasciatis, apice nigro, pedibus 

 testaceis, tibiis posticis apice nigris, tarsis posticis nigris apice albidis, alis 

 luridis apice fuscis. 



Male. Ferruginous. Head and pectus testaceous. Antennae tawny. Ab- 

 domen black towards the tip ; a testaceous band on the hind border of each 



