FEBRUARY. 47 



4. Tabanidce. Trophi greatly developed ; antennae, third 



joint very large, remaining joints closely united and 

 slender; eyes very large, and often beautifully coloured ; 

 wings extended horizontally at the side of the body ; 

 body triangular and depressed ; thorax thick ; size 

 large. Locality, woods an'd pastures, 



5. Bombyliidw. Proboscis long ; antennae close at the 



base, third joint fusiform and flattened ; thorax 

 much elevated, making the head appear low ; wings 

 apart when at rest ; body often thickly covered with 

 hairs, short and thick. Locality, flowers. 



6. Empidce. Proboscis long and folded beneath the breast ; 



antennae as long as the head, third joint longest ; 

 head small and round ; eyes large ; wings large ; 

 body narrow ; legs of moderate length ; size small. 

 Locality, flowers. 



7. Hybotidce. Proboscis short ; head small and spherical ; 



eyes occupying nearly the whole surface ; thorax very 

 elevated ; body narrow ; size small. Locality, flowers. 



8. Asilidce. Proboscis as long as the head, which is 



depressed ; antennae, third joint long, terminated 

 with a seta ; thorax narrow in front ; body long, 

 clothed with stiff bristles ; size large. 



