104 Proceedings of the Royal Physical Society. 



Fig. 3. 



Genitalia, S . The penis is not drawn. 



Fig. 5. 

 10th segment ? . 



Fig. 4. 



8th tergite 9. All the lateral hairs 

 not shown. 1 



Fig. 6. 

 Beceptaculum seminis. The median 

 dark coloured area is outlined only, 



1 All the drawings are from the slide. 



