INDEX. 
Ague in Great Britain, disappearance of, not dependent on extinction of mos- 
quitoes, but probably due to several causes, 21. 
Anopheles, a genus of Culicida; : A. bifurcatus (plate 3), distribution of, 19 ; 
A. maculipennis, the Spotted Gnat (plate 4), widely distributed and blood- 
sucking in Great Britain, 20; A. nigripes (plate 2), distribution of, 18; 
sometimes found indoors, 19 ; distribution of ague dependent mainly on 
numerical distribution of Anopheles, 22. 
Atylotus, a genus of Tabanidae : A.fulvus (plate 18), among the rarer of 
British Horse-flies, description of, 44 ; specimens in Museum only from 
Hampshire and Kenmare, 44 ; continental distribution, 44 ; A. rusticus, 
even rarer than A. fulvus, distinguished by greyer tint of short hair 
covering body, 45 ; only one modern British example in Museum from 
N.E. Essex, 45. 
Blood-sucking flies among British Diptera, some 74 species found in only 
six families, 1 2. 
Breeze-flies, popular name sometimes applied to Tabanidae, 31. 
Brimps, popular name in Kent for species of Haematopota, 31. 
Ceratopogon, a genus of Chironomidas : divisions lately introduced by 
Kieffer, 14 (note). 
CHlRONOMIDjE (Midges): British blood-sucking forms belong to genus 
Ceratopogon ; about 50 indigenous species, only a few of these known to 
suck blood, annoyance caused by and description of, 13; C. pulicaris 
(plate 1, fig. 2), prevalent in certain localities in England in 1904, figure 
of in resting position, 15 ; distinguished from C. varius, 16; C. varius 
(plate [, fig. 1), minuteness and range of, 14. 
