395 
1. Dull-coloured, brownish, flies, seven to twelve 
mm. long (excluding proboscis and wings). 
2. Wings in resting position, closed flat, one over 
the other, scissors-like, projecting beyond the abdomen. 
Fig. 125A. 
(1). Stomoxys calcitrans. Inner surface of the labellum shewing 
five cutting teeth and various other structures. These teeth are 
completely everted during the act of biting. 
(After Stephens and Newstead) 
3. Proboscis ensheathed in palpi, projecting 
horizontally in front. 
,s ■ 
