WALKER ON DIPTERA OE ABU ISLANDS. 115 



by about one-sixth of its length from the border, and by little more 

 than half its length from the prsebrachial transverse ; halteres tes- 

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



132. Dacus mutilloi'des, n. s. Fcem. Rufescens ; capite nigro, pos- 

 tice et apud oculos albo ; antennarum articulo tertio angusto linear! 

 longissimo; thoracis vittis tribus, pectoris fasciis duabus obliquis 

 lateralibus abdominisque fasciis duabus (secunda interrupta) albis, 

 abdominis dimidio postico nigro-aeneo; pedibus piceis; alis sublim- 

 pidis, costae apice venisque transversis nigro nebulosis; halteribus 

 albidis. 



Female. Reddish. Head black, white behind and about the eyes and 

 on the grooves of the face ; antennae black, reddish at the base, third 

 joint slender, linear, very long, arista bare, rather stout ; thorax with 

 three whitish stripes ; pectus with a more distinct oblique white 

 band on each side; metathorax whitish; abdomen aeneous, pubes- 

 cent, finely punctured, reddish and slightly contracted towards the 

 base, with two white bands, the second widely interrupted; oviduct 

 long, lanceolate; legs piceous; wings nearly limpid, clouded with 

 black at the tip of the costa and on the praebrachial transverse vein, 

 hardly clouded on the discal transverse vein; veins black; discal 

 transverse vein straight, parted by about one-fourth of its length 

 from the border, and by much more than its length from the prae- 

 brachial transverse ; halteres whitish. Length of the body 5 lines ; 

 of the wings 8 lines. 



133. Dacus longivitta, n. s. Mas. iEneo-viridis, subpubescens, 

 subtilissime punctatus ; capite nigro apud oculos albido, epistomate 

 ferrugineo, antennarum articulo tertio longo linear! ; thorace sub- 

 vittato ; pedibus nigris, femoribus ferrugineis ; alis subcinereis, costa 

 vittaque apud venam praebrachialem nigris ; halteribus piceis. 



Male. iEneous green, with slight hoary tomentum, very finely punc- 

 tured. Head black, whitish about the eyes; epistoma ferruginous, 

 prominent ; antennae black, ferruginous at the base, third joint long, 

 linear, conical at the tip ; arista bare ; thorax with an indistinct broad 

 hoary stripe ; abdomen compressed, nearly linear ; legs black ; femora 

 ferruginous ; wings slightly greyish, black along the costa and with a 

 black stripe which extends along the praebrachial vein to the discal 

 transverse vein ; veins black ; discal transverse vein straight, oblique, 

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

 very much more than its length from the praebrachial transverse; 

 halteres piceous. Length of the body 4-6 lines; of the wings 5-7 

 lines. 



134. Dacus lativentris, n. s. F(Bm. Nigro-viridis, subtihssime 

 punctatus ; capite piceo apud oculos albido ; antennis fulvis, articulo 

 tertio sublanceolato ; abdomine brevi, lato ; pedibus nigris, femoribus 

 anticis fulvis ; alis subcinereis, costa vittaque apud venam praebra- 



