262 MK. avalker's catalogue of dipterous insects 



albido fasciis duabus nigris, anteiinis fulvis, thorace pectoveque vittis 

 sex albidis, abdomine purpurascenti-cyaneo, tarsis halteribusque albi- 

 dis, alis cinereis, maculis plurimis ti-ansversis fasciisque duabus iiigii- 

 cantibus. 

 Female. Black, broad, thick. Head whitish, with two black bands ou 

 the front, and a narrower one on the face. Antennae tawny, about 

 half the length of the face ; arista plumose. Thorax and pectus with 

 three whitish stripes on each side, the first pair connected on the liind 

 border of the scutellum. Abdomen purphsh blue. Tarsi whitish, 

 with black tips. Wings cinereous, with many transverse blackish 

 spots, and with two blackish bands; veins black : longitudinal veins 

 slightly undulating or irregular : discal transverse vein straight, parted 

 by more than half its length from the border, and by more than its 

 length from the praibrachial transverse vein ; halteres whitish. Length 

 of the body 41 lines ; of the wings 8 lines. 



G-en. Dacus, Fahr. 



16. Dacus divergens. Walk. See Vol. IV. p. 149. 



Var. nigricanti-cyaneus, longus, eapite atro antice rufescente, antennis 

 longis basi rufescentibus, arista alba filiformi, thorace vittis tribus 

 cinereis, pedibus piceis, femoribus fulvis, alis cinereis, costa apicali 

 venisque transversis nigricante nebulosis, haltej-ibus albidis. 



Blackish-blue, shining, long, slender. Head deep black above, with 

 whitish tomentum behind and about the eyes ; face keeled, reddish in 

 the disk. Antennae black, reddish towards the base, as long as the face ; 

 3rd joint slender, linear, about eight times tlie length of the 2nd ; 

 arista white, filiform. Thorax with three cinereous stripes ; pectus 

 cinereous. Abdomen more slender than the thorax. Legs piceous ; 

 femOTa tawny. Wings cinereous, blackish about the transverse veins 

 and along the apical part of the costa to the end of the praebrachial 

 vein ; cubital and prsebrachial veins very approximate from the base 

 to the prsebrachial transverse vein, thence rather remote from each 

 gther ; discal transverse vein slightly curved, parted by one-eighth of 

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

 from the obhque prae^brachial transverse vein ; halteres whitish. Length 

 of the body 7 lines ; of the wings 12 lines. 



Gen. Eniconeuea, 3£acq. 



17. Eniconeuka pictipennis. Walk, (see Vol. IV. p. 155). Fam. 

 Lutea, eapite maculis duabus nigris, thorace punctato vittis quatuor 

 indistinctis fuscescentibus, pectore strigis duabus nigris, abdomine 

 longo, alis paliide luteis nigro strigatis ])ostice cinereis. 



Female. Luteous, shining, paler beneath. Head above with a large 

 elongated black spot, and with a transverse black spot on the face. 

 Thorax punctured, with black hairs and bristles, and with four indi- 



