126 MB. r. WALZEB ON NEW SPECIES OF DIPTEEA 



halteres pale testaceous. Male. Abdomen clavate. Female. Ab- 

 domen fusiform, keeled and attenuated at the tip. Length of the 

 body 4y-5 lines; of the wings 8-9 lines. 



63. PsiLA? CRUCIATA. Mas. Pallide lutea, capita lituris quatuor 

 nigris, thoracis disco antico nigro strigas duas emittente, abdomine 

 longo cylindrico, pedibus longiusculis, tibiis tarsisque nigris, alis lim- 

 pidis fusco bifasciatis apice fuscescentibus. 



Male. Pale luteous, slender. Head black between the eyes, and with 

 a black spot above the base of the antennae ; face with two black dots 

 near the epistoma. Antenufe nearly as long as the face ; third joint 

 linear, four times as long as the^ second ; arista slender, very minutely 

 pubescent. Fore disk of the thorax black excepting the humeral 

 calli, emitting two black streaks hindward. Abdomen cylindrical, 

 much more slender than the thorax, and nearly twice its length. 

 Legs rather long; tibiae and tarsi black. Wings limpid, brownish 

 towards the tips, with two brown bands ; first band including the prae- 

 brachial transverse vein, abbreviated hindward ; second including the 

 discal transverse vein, abbreviated in front, bordering the apical 

 brownish part ; veins black, pale luteous towards the base, parted by 

 one-fourth of its length from the border, and by its length from the 

 praebrachial transverse vein; halteres pale. Length of the body 

 6| lines; of the wings 10 lines. 



64. PsiLA? BASALis. Mas et Foem. Testacea, verticis disco thoracis 

 vittis duabus abbreviatis tibiisque basi piceis, abdomine piceo basi 

 testaceo, alis cinereis striga costali transversa fasciaque subapicali 

 puncta dua includente fuscis latis, macula costali maculaque apicali 

 albis. 



Male and Female. Testaceous, slender. Head with a few black bristles ; 

 disk of the vertex piceous. Antennae almost as long as the face ; third 

 joint linear, four times the length of the second; arista plumose. 

 Thorax with two piceous stripes, which are abbreviated hindward; 

 some long black bristles on each side. Abdomen piceous, testaceous 

 toM'ards the base, longer and narrower than the thorax, linear in the 

 male, fusiform in the female. Legs pale testaceous ; tibiae piceous 

 towards the base. Wings cinereous, with a broad brown streak pro- 

 ceeding from the costa to the disk, and with a broad brown subapical 

 band which contains two cinereous costal points, a white costal spot 

 dividing the streak from the band and a white apical spot ; veins 

 black, testaceous towards the base ; discal transverse vein straight, 

 parted by hardly one-fourth of its length from the border, and by 

 nearly twice its length from the discal transverse vein ; halteres pale 

 testaceous. Length of the body 3^—4 lines ; of the wings 7 lines. 



65. PsiLA.? viTTiFERA. Mus. Picea, capite testaceo, thorace vittis 

 quatuor piceis, pedibus halteribusque albido-testaceis, alis nigris basi 



