26 me. walker's catalogue of dipterous insects 



curved inward to its tip ; discal transverse vein moderately undulating, 

 parted by little more than half its length from the border and by rather 

 less than its length from the flexure of the prsebrachial. Alula? grey. 

 Length of the body 3£ lines ; of the wings 7 lines. 

 Singapore. 



87. Musca difpidens, n. s. (genus Pyrellia, Desv.), foam. Cyaneo-viridis, 

 capite albido, palpis antennis pedibusque nigris, alis vix cinerascentibus. 



Female. Bright bluish-green. Head whitish. Proboscis, palpi, antenna) 

 and legs black. Wings hardly greyish ; veins black ; prsebrachial vein 

 gently curved at its flexure, from whence it is almost straight to its tip ; 

 discal transverse vein almost straight, parted by much less than its length 

 from the border, and by much more than its length from the curve of the 

 prsebrachial vein. Alulse whitish. Length of the body 3 lines ; of the 

 wings 6 lines. 



Singapore. 



88. Musca CONFIXA, n. s. (genus Pyrellia, Desv.), fcem. Lsete viridis cyaneo 

 purpureoque varia, capite nigro, antice albido, palpis testaceis, antennis 

 nigris basi rufescentibus, abdominis apice subseneo, pedibus nigris, alis 

 cinereis. 



Female. Bright green, tinged with blue and purple along each side. Head 

 black above, whitish in front. Proboscis black. Palpi testaceous. An- 

 tennae black ; first and second joints reddish. Abdomen slightly seneous 

 at the tip. Legs black ; femora green. Wings grey ; veins black ; prse- 

 brachial vein gently curved at its flexure, between which and its tip it is 

 slightly curved inward ; discal transverse vein moderately undulating, 

 parted by much less than its length from the border, and by a little less 

 than its length from the flexure of the prsebrachial vein. Alulse dark grey. 

 Length of the body 3| lines ; of the wings 7 lines. 



Mount Ophir, at the height of 4000 feet. 



89. Musca eefixa, n. s. (genus Pyrellia, Desv.) , foam. Purpurea, lateribus 

 subtiisque cyanea aut cyaneo-viridis, capite antico, palpis pedibusque nigris, 

 antennarum articulo tertio piceo, alis subcinereis. 



Female. Purple shining, blue on each side and beneath. Head in front, pro- 

 boscis, palpi and legs black. Third joint of the antennse piceous. Wings 

 slightly greyish ; veins black ; prsebrachial vein forming a gentle curve at its 

 flexure, which is very near the border, indistinctly curved outward from 

 thence to its tip ; discal transverse vein almost straight, parted by little 

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

 flexure of the prsebrachial vein. Alulse grey. Length of the body 2|-2£ 

 lines ; of the wings 5-5^ lines. 



Var. /3. Bluish-green. Scutellum purplish -blue. Discal transverse vein very 

 indistinctly curved inward. 



Singapore. 



90. Musca peefixa, n. s. (genus Pyrellia, Desv.), fcem. Purpurea, capite 

 palpis antennis pedibusque nigris, alis limpidis. 



Female. Very nearly allied to M. refixa. Purple, shining. Head and 

 appendages and legs black. Wings limpid ; veins black ; prsebrachial vein 



