128 ME. WALKER ON DIPTEEA COLLECTED AT MAKESSAE. 



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

 less than its length from the flexure of the prtebrachial ; aluliE white. 

 Length of the body 3f lines ; of the wings 7 lines. 



110. EuRYGASTER CONTRACTA, n. s. Fcem. Cinerea, brevis, eapite 

 albo, palpis, antennis pedibusque nigris, thorace vittis quatuor nigris, 

 abdomine nigro fasciis tribus latis subinterruptis argenteo-cinereis, alis 

 cinereis basi nigricantibus, alulis albis, 



Female. Cinereous, short ; head white ; frontalia deep black, widening 

 slightly towards the face, with stout bristles along each side ; facialia 

 without bristles ; epistoma not prominent ; eyes bare ; palpi and legs 

 black; antennas reaching the epistoma; 3rd joint linear, rounded at 

 the tip, about four times the length of the second ; arista stout for 

 almost one-third of the length ; thorax with four black stripes ; abdo- 

 men black, nearly oval, not longer than the thorax, with three broad 

 slightly interrupted silvery cinereous bands ; wings cinereous, blackish 

 at the base ; veins black ; prsebrachial vein forming an obtuse angle 

 at its flexure, nearly straight from thence to its tip ; discal transverse 

 vein curved inward towards its base, parted by less than its length 

 from the border, and by about its length from the flexure of the pra;- 

 brachial ; alula; white. Length of the body 2+ lines ; of the wings 

 4.y lines. 



111. EuRYGASTER I'ROGRESSA, n. s. FcPOT. Fulva, capitc subtus et 

 apud oculos albido, antennis jallide luteis apice fuscescentibus, ab- 

 domine maculis tribus dorsalibus nigris, alis cinereis apud costam 

 Inridis apice fuscis, halteribus testaceis. 



Female, Tawny, with black bristles ; head testaceous, whitish about the 

 eyes and beneath ; frontalia pale luteous, widening to the epistoma, 

 beset with bristles along each side ; facialia without bristles ; epistoma 

 not prominent ; eyes bare ; antenna; pale luteous, almost reaching 

 the epistoma ; 3rd joint linear, brownish towards the tip; arista stout 

 to about one-third of the length ; abdomen nearly oval, hardly longer 

 or broader than the thorax, with three black dorsal spots ; tarsi piceous ; 

 wings grey, lurid along the costa, brown towards the tips, except along 

 the hind border ; pra;brachial vein forming a slightly obtuse angle at 

 its flexure, much curved inward from thence to its tip ; discal trans- 

 verse vein undulating, parted by much less than its length from the 

 border, and by about its length from the flexure of the prajbrachial ; 

 alula; and halteres testaceous. Length of the body 4 lines ; of the 

 wings 7 lines. 



Geu. Metopia, Ileigen. 



112. Metopia inspectans, n. s. Faim. Cinerea, eapite magno ar- 

 genteo subconico, facie perobliqua, thorace vittis quatuor, abdominis 

 vitta dorsali ct segmentorum margiuibus posticis nigris ; alis cinereis, 

 alulis albis, halteribus piceis. 



