( clxi ) 



in a longish straight horn curved well downwards, as are all 

 these parts in the Diptera ; the harpagones are small rounded 

 sclerites between which lies the sedoeagus ; this is shown in the 

 figure projecting below the lower margin of the harpagones. 



I have only time to consider three sections of the important 

 group Schizophora, viz. the Anihomyidae, the Trypetidae and 

 the Tachinidae. In the former, 



Hylemyia strigosa 



has quite small armature — the species is of course a small 

 insect, but even so the armature is small and simple, the 

 tegumen being deeply bifid, and it quite evidently supplants 

 the harpagones functionally; the harpagones are quite small, 

 divided more or less into two sections, the upper one scroll- 

 shaped and the lower rather cuneate ; the venter of the end 

 abdominal segment is projected forwards into two rounded 

 sclerites, one on each side, which carry near their upper apex 

 a long strong curved spinous hair articulated in a definite 

 socket. 



Tephritis miliaria, 



representing the latter of the two subfamilies already men- 

 tioned. In this the tegumen and the harpagones or their 

 equivalents appear to form one continuous organ, the former 

 being merely a broad collar quite continuous with the harpa- 

 gones, which are large and prominent and somewhat cuneate ; 

 within these latter are a pair of sclerites hanging down more 

 or less parallel with the harpagones. The aedoeagus is the 

 somewhat coiled fine tube as seen in the figure. The Tachi- 

 nidae, if we may judge from the genitalia, must be closely 

 related to the previous family Anihomyidae. 



Pollenia rudis 



is close to Hylemyia in the general " build " of its armature ; 

 the tegumen is very similar in shape, but it is slightly bifid, 

 and it has below it a pair of prominent sclerites larger 

 than the uncal portion of the tegumen ; the ventral sclerites 

 are reduced to a pair of somewhat cone-shaped pads, of but 

 moderate size ; the eedceagus is largish, deeply curved, and is 

 emitted from a ring of chitin which at its upper margin is 



PROC. ENT. SOC. LOND., V. 1914. h 



