262 MUSCID^J. 



9. scutellata, Hal. A. N. H. iii. 406. 9 (1839). Nigra, subnitida, 

 antennis subtus pedibusque testaceis, scutello aterrimo, alls albo-bigut- 

 tatis. Long, vix 1 ; alar. 2 lin. 



Black, slightly shining. Antennae beneath and legs testaceous. 

 Scutellum deep black. Wrings with two white dots. 



Yery rare ; found at Hollywood, near Belfast. In Mr. Hali- 

 day's collection. (I.) 



Subgenus 3. AXYSTA. 



AXYSTA, Hal. A. N. H. iii. 406. (1839). Ephydra p., Meig. Trime- 

 rina, Mcq. Hydrina p., Desv. 



Fades perpendicularis, media subconvexa, superne parum angustata, vix 

 nisi nuda. Arista pubescens. Abdomen quasi 3-annulatum, i. e. 

 segmentis primo et quinto minimis, basi marginatum. Vena costalis 

 in alee apice evanescens. Vena discali-recurrens ab alee margine distans. 

 Vencs brachiales ibidem sinu approximate. 



Face vertical, slightly convex in the middle, a little straitened above, 

 almost bare. Arista pubescent. Costal vein vanishing at the tip of the 

 wing ; discal-recurrent vein remote from the border ; brachial veins ap- 

 proximate in the same flexure of the wing. Abdomen with a margin at 

 the base, apparently with only three segments, the Jirst and the fifth being 

 very small. 



10. viridula? Desv. E. M. 795 (1830) ; Hal. cesta, Hal. E. M. 

 I. 777. cceruleiventris ? Mcq. Nigra, nitida, facie albida vitta nigra, 

 abdomine punctatissimo cyanescente. Long. % ; alar. 1 lin. 



Black, shining. Face whitish, with a black stripe. Abdomen bluish,* 

 very thickly punctured. 



Bare ; found on grass at Hollywood. In Mr. Haliday's collec- 

 tion. (I.) 



Subgenus 4. PELINA. 



PELINA, Hal. A. N. H. iii. 407 (1839). Notiphila p., Eal.; Zett. 

 Ephydra p., Meig. ; Mcq. 



Fades latissima, perpendicularis, lateribus tenuissime ciliata. Clypeus 

 subexsertus. Arista subtilissime pubescens. Vena discali-recurrens 

 prope alee marginem. Abdomen depressum. 

 Face very broad, vertical, very finely ciliated on each side. Clypeus 



slightly projecting. Arista very minutely pubescent. Discal-recurrent 



vein near the border. Abdomen depressed. 



11. aenea, Eal. Act. Holm. 1813. 253 (1813) ; Meig. ; Hal. ; Zett. 

 glabricula, Meig. ; Mcq. Obscure renea, facie albicante, alis hyalinis, 

 tarsis flavis. Long. J ; alar. H lin. 



