KHIPIDIA. 311 



sordicle albidis, pedil)us Digris, femoribus liiridis. Long. 4—5 ; alav. 

 9-10 lin. 



Blackisli-grey. Thorax slightly ferruginous. Wings greyish, with 

 some bro\\:nish more or less distinct marks along the costa ; veins 

 black, pale towards the base. Halteres dingy whitish. Legs black ; 

 femora lurid. 



Not commou. Inhabits shrubs and rocks near the sea-shore. 

 (E. L) 



Genns X. RHIPIDIA. 



lliiiriDTA, Meig. Zw. i. 153 (1818); Mcq. ; Stseg. ; Zctt. 



Corpus mediocre, clongatum, glabriculum. Caput parvum, rotunda- 

 tuni. Oculi rotundi, remoti. Proboscis modice elongata. I'alpi 

 4-articulati, cyliudrici, incurvi, pubescentes ; articuli subtequales ; 

 primus panllo brevior. Antennae 14-articulat8e, porreetae ; articulus 

 primus cyliudricus ; secundus et tertius cyathiformes ; quartus et 

 sequentes globosi, remoti ; quartus-decimns subovalis. Prothorax 

 atteiiuatus. Thorax convexus. Alte modice angustse, incumbentes. 

 Abdomen elongatum, segmentis octo. Pedes elongati, graciles, iu- 

 ermes ; coxBC breves. Has. Antennaj bipectinatse, thorace vix bre- 

 viores. Abdomen iineare, depressum, anus parvus, valvulis duabus 

 rotundatis inflexis pubcsccutibus forcipatus. Fa^m. Antennrc sim- 

 plices, pilosa;, thorace paullo breviores. Abdomen lanceolatum, sty- 

 lis duobus modice brevibus subulatis leviter recurvatis. 

 Body elongated, nearly bare, of moderate size. Head, small, round. 

 Eyes round, remote. Proboscis moderately long. Palpi four-jointed, 

 cylindrical, pubescent, decumbent; joints of nearly equal length; first 

 a little shorter than the second. Antenna) fourteen-jointed, porrect ; 

 first joint cylindrical ; second and third cyathiform ; fourth and follow- 

 ing joints globose, remote ; fourteenth nearly oval. Prothorax atte- 

 nuated. Thorax convex. AVings incumbent, moderately narrow ; me- 

 diastinal vein ending at beyond half the length of the wing, connected 

 with the subcostal by a veinlet at its tip ; subcostal ending at ibur- 

 fifths of the length, and then connected by a veinlet with the radial ; 

 radial and cubital springing from a common petiole, which is about 

 lialf their length, and jn-occeds from the subcostal at beyond half the 

 length of the latter ; cubital connected at one-fourth of its length with 

 the third externo-medial by a veinlet, whose angle emits the first ex- 

 terno-medial, and which is continued from the third externo-medial to 

 the subanal ; the angle of another veinlet between the first and third 

 externo-medial emits the second externo-medial ; anal vein and axillary 

 vein complete ; discal areolet long, subpentagonal. Abdomen elon- 

 gated, with eight segments. Legs long, slender, unarmed ; coxte short. 

 Male. AntenucV) bipectinated, hardly shorter than the thorax. Abdo- 

 men linear, depressed ; the forceps composed of two round, inflexed, 



