134 MR. walker's catalogue of dipterous insects 



an inten^upted band, sciitellum, and tip of the abdomen also testaceous. 

 Wings nearly Umpid, -nitli two bi-owii bands, the interior one abbreviated 

 liindward ; veins black, testaceous at the base. Length of the body 

 3 lines ; of the wuigs 5 lines. 



Gen. Uropiiora, Desv. 



158. Urophoea fasciata, n. s., fcem. Nigra uitens, capite antennis scapulis 

 scutello abdommis terebra pedibusque testaceis, abdomine fasciis duabus 

 albido-tomentosis, femoribus posterioribus piceis, aUs nigro-fuscis vitta 

 lata subobliqua limpida apicem versus furcata et arcuata. 



Female. Black, shining. Head testaceous, wliitish in front and beneath. 

 Antennse, scapulae, scutellum, legs and halteres testaceous. Abdomen with 

 two bands of whitish tomentum. Terebra testaceous, long, slender. Poste- 

 rior femora mostly piceous. Wings blackish-brown, with some paler spots 

 along the costa, and with a broad, sHghtly oblique limpid stripe, which 

 towards its tip is divided and curved to tlie hind border. Length of the 

 body 4 lines ; of the wings 6 hues. 



Subfam. Aciiiides, Walk. 

 Gen. AcHiAS, Fahr. 



159. Achias maculipennis, Tfesfw. See page 36. 



There are two specimens of the male of this species, and the petiole with 

 which the head is fiu-nished on each side is much longer in one specimen 

 than m the other, and in the latter is much longer than in the male from 

 Singapore. I am indebted to Mr. Westwood for the correction of an error 

 m page 33, where the female of tliis species is described by the name 

 of Themara ampla. 



Subfam. Diopsides, Walk. 



Gen. Diopsis, Linn. 



160. Diopsis quinqueguttata. Walk. See page 36. 



161. Diopsis quadriguttata, JFalk. See page 37. 



162. Diopsis disceepans, n. s., mas et fcem. Nigra nitens, antennis fulvis, 

 abdomine apud petioli apicem macidis duabus rufis tomento albo plagiatis, 

 pedibus rufescentibus, tarsis testaceis, alis subhmpidis macula apud venam 

 transversam prsebrachialem fasciaque exteriore fuscis. Mas. Oculorum 

 petiohs corpore paullo longioribus aut brevioribus. Fosm. Oculorum pe- 

 tiohs corporis dimidio brevioribus. 



Male and Female. Black, shining. Antennse tawny. Abdomen at the tip 

 of the petiole with two red spots, each accompanied by a patch of white 

 tomentum. Legs reddish ; tarsi testaceous. Wings nearly limpid, with a 

 brown spot on the prsebrachial transverse vein, and with an exterior brown 

 band ; veins black. Halteres white. 



Male. Petioles of the eyes a little longer or a httle shorter than the body. 



Female. Petioles of the eyes less than half the length of the body. Length 

 of the body 2^ hues ; of the wings 4 lines. 



