72 
Lipoptena, a genus of Hippoboscida; : L. cervi (plates 33 and 34) parasitic on 
several species of deer, in Great Britain chiefly on the roe, both sexes 
sometimes wingless, 65 ; differences between winged and wingless males ; 
nearly all specimens in Museum from roe deer in Dorset ; occurs 
throughout Europe, one specimen found in Transvaal, 66. 
Lyperosia, a genus of Muscida: : L. irritans (plate 30, fig. 2) the smallest of 
native blood-sucking Muscida?, a pest of cattle, especially of black 
animals, does not attack human beings, 60 ; uncommon in British Isles ; 
closely allied species found in Ceylon ; L. irritans generally distributed 
throughout Europe, the United States and Eastern Canada ; in the 
U.S.A. termed the ' Horn-fly,' from habit of clustering about base of 
horns ; also known as Htzmatobia serrafa : in Italy attacks horses as 
well as cattle, 61. 
Melophagus, a genus of Hippoboscida? : M. ovinus, the sheep ' tick,' sheep 
'louse' or ' ked ' (plate 34, fig. 2), wings completely wanting in both 
sexes ; whole life-cycle passed in wool of sheep ; as thus seen the insects 
greatly resemble small spiders ; may injure sheep by causing them to 
bite and rub themselves, thus producing a wound which attracts fly 
{Lucilia sericata), 67 ; found at all seasons, and recently met with in New 
Mexico, 68. 
Muscm.E, a family of Uiptera, containing three British blood-sucking species, 
nearly allied to common house-fly and to African tsetse- flies. Blood- 
sucking habit exceptional and confined to very few genera and species, 
but common to both sexes, 57. Blood-sucking Muscidse (tsetse-flies 
excepted) breed in dung, eggs developing into white maggots, 57. 
' Norway Mosquito,' term applied at Aldeburgh to Grabiiamia dorsalis, 27. 
Nuttall, Cobbett, and Strangeways-Pigg on Anopheles and ague in Great 
Britain, 21, 22. 
Ornithomyia, a genus of Hippoboscidas : O. avicularia (plate 32) distributed 
throughout British islands, infesting various birds, 64 ; variations in size 
and coloration ; carried by birds all over the world ; in New South 
Wales and Tasmania parasitic on wallabies, 65. 
'Sheep tick,' 'sheep louse' or ' ked,' terms applied to Melopiiagus ovinus, 
67. 
