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DIPTERA (TWO-WINGED FLIES). 
BOMBYLIUS DISCOLOR. 
“Bombylidce (Humble-Bee-flies, etc.). — 
The species of the Anthracinse branch of this 
family are generally to be found hovering 
in the hottest sunshine over bare spots on 
heaths, seashores, etc. The Bombylinse, on 
the other hand, affect flowers— e.g. primroses, 
Potentilla, etc. At Aden Bombylius cinalis 
was found hovering over the flowers of the 
garden turnip run wild, and probably other 
Cruciferse will be found attractive. 
“ Asilidce (Bobber-flies) affect many 
and varied situations. Bonds, bare sandy 
places, etc., are attractive to some 
species; others sit on tree trunks, stones, 
and telegraph posts and wires. Others, 
again, prefer dry sticks and branches near 
the ground ; while the species of Damalis 
and some few other genera love to sit on 
bare twigs at about the height of one’s eye. 
“ Tabanidce (Horse-flies) are often 
to be seen flying round living animals; 
but few are to be caught in this 
situation, most of the species of this 
family being taken flying round 
oneself or one’s companions. A 
few may be caught sitting on tree 
trunks, leaves, walls, etc., and a few 
males taken hovering like Syrphidce 
tauanits bovinus. in the air. 
“ Muscidce Calypteratce may be met with in 
most situations. The species of many genera 
(Idia in particular) love flowers; others, again 
(Lucilia, Calliphora, Bolietes, etc.), are to be 
found round ordure and carrion. Mesembrina 
and Rutilia, in company with many species of 
Anthomyinse and Tachinidce, love to sit on tree 
trunks, and prefer the sunny side. 
ASILUS CRABRONIFORMIS. 
MESKMBRINA MERIDIANA. 
