20 MK. walkeb's catalogue oe diptebous insects 



talibus atris, thoracis vittis qTiatuor interniptis nigris, scutelli margiiie ab- 

 dominisque fasciis caiiis, alis subcinereis. 



Female. Cinei'cous, rather short and broad. Head hoary, silvery-white above 

 and in front ; frontaha deep blact, shghtly w-idening from the vertex to the 

 antennae ; faciaha without bristles ; epistoma hardly promuient. Antennse 

 extending to about thi-ee-quarters of the length of the face ; 3rd jouit 

 linear, slender, rounded at the tip, about twice the length of the 2nd ; 

 arista stout for about half its length, very much longer than the 3rd joint. 

 Thorax with fom* slender interrupted black sti'ipes ; scuteUum with a hoary 

 border. Abdomen black, obconical, hardly longer than the thorax ; a broad 

 hoai-y band on the fore border of each segment. Wings slightly greyish ; 

 veins black ; prsebrachial vein forming an almost right and rather well- 

 defined angle from whence it is shghtly cm'ved inward to its tip ; discal 

 transverse vein hardly curved inward, parted by rather less than its length 

 from the border and from the flexure of the proebracliial. Alulse white. 

 Length of the body 4 hues ; of the wings 8 lines. 



Mount Oplm-, at tlie height of 4000 feet. 



G-en. Masiceea, Macquart. 



68. Masicera tomcntosa, Macq. Dipt. Uxot. Snppl. 2. 

 Mount Opliir, at the height of 4000 feet. 



69. Masicera ticaeia, n. s., fcem. Nigra, longiuscula, capite albo, frontali- 

 bus atris, thoracis vittis quatuor, lateribus seutello abdominisque fasciis 

 duabus latis interruptis canis, alis einereis. 



Female. Black, rather long. Head white, with short white hairs, beneath 

 and behind ; frontaha linear, deep black ; faciaha without bristles ; ejiistoma 

 not prominent. Eyes pubescent. Antenna3 extending nearly to the epi- 

 stoma ; 3rd joint linear, slender, slightly roimded at the tip, about four times 

 the length of the 2nd ; arista rather stout for frill one-third of the length 

 from the base, very much longer than the 3rd jomt. Thorax with four 

 hoary stripes ; sides and scutellum hoary. Abdomen elongate-obconical, 

 much longer than the tliorax, with two broad interrupted hoaiy bands. 

 Legs stout. Wings grey ; veins black ; prsebracliial vein forming a rather 

 obtuse angle at its flexure, from whence it is shghtly ciu-ved inward to its 

 tip ; discal transverse vein undidating, parted by very little less than its 

 length fi'om the border and from the flexure of the prsebrachial. Ahilse 

 whitish. Length of the body 5 lines ; of the wings 9 lines. 



Singapore. 



Gen. EuRiGASTEK, Macquart. 



70. EUEIGASTER MFSCOiDES, n. s., fcEm. Nigra lata, capite albido, frontali- 

 bus nigris, palpis testaceis, tliorace cano nigro-quach-ivittato, scutelh apice 

 fulvo, abdomme cano-fasciato, ahs einereis apud costam fuscescentibus. 



Female. Black, broad, with long bristles. Head whitish; frontaha black, 

 linear ; faciaha without bristles ; epistoma not prominent. Eyes pubes- 

 cent. Palpi testaceous. Antennae extending to the epistoma; 3rd joint 

 Unear, rounded at tlie tip, full four times the length of the 2nd ; arista 



