352 Mr. A. H. Haliday's Descriptions of Dipterous Insects, 



truncatum, Hypopygio minuto abscondito, sty lis 2 minimis subulatis vix 



emergentibus. 



1. Maritimce. M. aureo-virens, an tennis nigris, hypostomate niveo, 



pedibus ferrugineis : (Mas) tarsis anterioribus elongatis onychiis 



productis, 



Exp. alarum $ . lin. 5-j- : ? • 5|-f^. 

 Long. Corp. $ .2\. $ . 2i. 



Antennae nigrae: Os nigro-fuscum : Hypostoma et palpi niveo-sericantes : 

 Facies sub antennis glaucescens: Gense splendide-vi rides barba Candida: 

 Frons aurato-viridis : Oculi rufo-castanei : Thorax Isete virens lineis 2 

 dorsi cupreis, aliis obsoletioribus subcyaneis : Metathorax, pleurae et coxae 

 glauco sericantes: Abdomen praesertim in femina magis auratum 

 nigro setosum lateribus glauco pubescens : Halteres lutei : Alae subhyalinae 

 radice et alulis dilute ferrugineis nervuris fusco-ferrugineis : Pedes pallida 

 ferruginei nigro-pilosi etsetosi, tarsis anticis apice posticis totis et tibiarum 

 vix summo apice nigris : Tarsi anteriores maris onychiis insignibus ut in 

 Diaphoro. 



He?? Taken on the coast near Holywood, in July, 1828.] 



DIAPHORUS. Meig. IV, 32, CXXIV. 



1. flavocinctus. Meig. IV, 33, 1. 



^ Near Bexley, June.] 



PSILOPUS. Meig. IV, 35, CXXV. 

 1. platypterus. Meig. IV, 36, 2. 



Fabr. Syst. Antl. 270, 20. 

 [The wings of the male in repose are divaricate ; it is fond of resting 

 in small troops on the shady side of a gate or paling.] 



CHRYSOTUS. Meig. IV, 40, CXXVI. 



1. lasus. Meig. IV, 43, 7. 



2. nigripes. 6. 



3. femoralis. — 5. 



