116 WALKER OK DIPTEBA OF AUU ISLANDS. 



chialem nigris, rena discali transversa nigricante nebulosa ; halteribus 

 albidis. 

 Female. Blackish green, very minutely punctured. Head piceous, 

 whitish about the eyes; epistoma ferruginous, slightly prominent; 

 antennae tawny, third joint rather long, somewhat lanceolate, arista 

 bare ; abdomen nearly round, broader than the thorax ; legs black, 

 fore femora tawny ; wings very slightly greyish, black along the costa 

 to the tip of the prsebrachial vein, with a black stripe along the 

 praebrachial vein to the discal transverse vein, and with a blackish 

 tinge about the discal transverse vein and along the adjoining part of 

 the hind border; veins black, discal transverse straight, vein parted 

 by less than half its length from the border, and by very much more 

 than its length from the praebrachial transverse ; halteres whitish. 

 Length of the body 2 lines ; of the wings 4 lines. 



135. Dacus odtrudens, n. s. Mas, Nigro-viridis, subtilissime punc- 

 tatus ; capite nigro apud oculos albido ; antennis piceis basi rufes- 

 centibus, articulo tertio lineari longissimo ; abdomiae lineari maculis 

 duabus lateralibus testaceis ; pedibus nigris, femoribus apice tarsisque 

 posticis basi fulvis ; alis subcinereis, costa, apice maculaque apud 

 venam transversam discalem nigricantibus ; halteribus albis. 



Male. Dark green, very minutely punctured. Head black, whitish 

 about the eyes, ferruginous towards the epistoma ; antennae piceous, 

 reddish towards the base ; third joint linear, very long, arista bare ; 

 abdomen linear, compressed, with a testaceous spot on each side 

 before the middle ; legs black, femora tawny towards the tips, hind 

 tarsi tawny at the base ; wings slightly greyish, blackish along the 

 costa and at the tips, and about the transverse veins; veins black, 

 tawny at the base ; discal transverse vein straight, oblique, parted by 

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

 length from the praebrachial transverse ; halteres white. Length of 

 the body 4 lines ; of the wings 7 lines. 



136. Dacus pompiloides, n. s. Mas. Niger; capite albido, episto- 

 mate ferrugineo ; antennis piceis basi rufis, articulo tertio longo lineari ; 

 abdomine nigro-cyaneo ; pedibus piceis ; alis subcinereis, striga costali 

 basali, fascia tenui postice abbreviata et triente apicali strigam sub- 

 cineream includente nigricantibus ; halteribus albis. 



Male. Black. Head with whitish tomentum, epistoma ferruginous, 

 prominent ; antennae piceous, red at the base, third joint long, linear, 

 arista bare ; abdomen linear, blackish blue, longer than the thorax ; 

 legs piceous; wings slightly greyish, with a blackish costal streak 

 extending from the base, with a slender blackish band which is abbre- 

 viated hindward, and with more than one-third of the apical part 

 blackish and including a slightly greyish streak ; veins black, discal 

 transverse vein straight, oblique, parted by a little less than its length 

 from the border and by about its length from the praebrachial trans- 



