154 ANNALS OF SCOTTISH NATURAL HISTORY 



Family SYRPHID^E. 



49. LIOGASTER METALLINA, Fab. 6 $ and 29$. [Common 



in and near marsh by sweeping. J. W.] 



50. PLATYCHIRUS MANICATUS, Mg. 6 $ $ and 2 $ $. [Very 



common in north of island, a few in cultivated area in 

 south. J. W.] 



51. PLATYCHIRUS CLYPEATUS, Mg. n $ 3 and 9 <j> <j> . 



[Abundant in marsh in south of island, a few on the cliff 

 ledge in north. J. W.] 



52. MELANOSTOMA MELLINUM, Linn. A single $ with dark 



abdomen totally devoid of spots and the legs much darker 

 than the typical form. [In marsh. J. W.] 



53. ASCIA PODAGRICA, Fab. 4 $ $ and 17 $? $ . [Somewhat 



large specimens, but antennje and cross-vein obscuration 

 typical. J. W.] 



54. ERISTALIS ARBUSTORUM, Linn. 19 $ $ and 16 $ ?. 



[Common, latterly abundant. In cultivated area only, and 

 there chiefly on flowers of Marigold. J. W.] 



55. HELOPHILUS PENDULUS, Linn. 3 $ $ and $ $. [Seen 



only on two days in the month, first one then a dozen, on 

 Marigold. J. W.] 



56. SYRITTA PIPIENS, Linn. 4 $ $. [Generally distributed. In 



cultivated area and on cliff edges ; never in numbers. 

 J. W.] 



Family TACHINID^E. 



57. SlPHONA GENICULATA, Deg. 4 $ . 



58. CYNOMYIA MORTUORUM, Linn. 4 $ $ and $ $. [Abundant 



especially on north slope. Has a curious habit of settling 

 on grass. J. W.] 



59. A specimen which I cannot identify, coming somewhere near 



Brachycoma. 



Family MUSCID^E. 



60. MYIOSPILA MEDITABUNDA, Fab. i $ and 4 $ 9. [Swarming 



in marsh. J. W.] 



6 1. CALLIPHORA ERYTHROCEPHALA, Mg.--\ $ and 3 $ $. 



[Common. J. W.] 



