420 Transactions of the Society. 



presence of two pairs of gonapopliyses in the female. I do this 

 with some hesitation, but the presence of gonapopliyses is certainly 

 a primitive feature ; after all, it is really only a matter of con- 

 venience in which group it is placed, for it has very sharply marked 

 characters of its own. 



I have also felt obliged to separate Psalis fcmoralis into a 

 distinct genus and sub-family, for reasons which will appear later. 



Sub-order I.— ARIXENINA. 



The reproductive apparatus is described in detail by Jordan 

 and Burr in both sexes. The male organ is complicated, and 

 differs from that of the true earwigs in having the form of a tube 

 or cylinder, instead of being dorso-ventrally flattened. One 

 ejaculatory is rudimentary, persisting as a blind branch on the 

 functional duct, which runs from the seminal vesicle where the 

 vasa deferentia meet, into the vesicle at the base of the penis, 

 corresponding to the basal vesicle in the true earwigs. The rudi- 

 mentary duct is thrown off just above this vesicle. The duct 

 continues through the single preputial sac, corresponding to the 

 virga, which is long and coiled. 



Jordon detected a funnel-shaped cavity on the ventral side, 

 receiving a thin tube which runs the whole length of the organ. 

 This is probably the rudiment of the second prseputial sac with 

 its virga. This rudimentary penis is unarmed, but the functional 

 penis has a complex chitinous armature recalling that of many 

 Labiidx. There are four irregularly shaped chitinous bars or 

 plates ; the virga is continued in a chitinous tube that joins this 

 armature, though the duct itself does not. The proparameres are 

 very weak and feebly chitinized ; the metaparameres scarcely 

 stronger; these are sub-cylindrical, finger-shaped, feebly chitinized 

 and studded with sensory papilla?-like seta?. They are manipulated 

 by a pair of strongly chitinized rods or levers, which extend 



EXPLANATION OP PLATE VI. 



FIG. 



1. Dicrana wigginsi Burr. 



2. D. bcttoni Kirby. 



3. D. biafra Borm. 



FIG. 



8. Acnodes wellmanni Burr. 



9. Tagalina semperi Dohrn. 



10. Kalocrania similis Zacber. After 



4. D. caffra Dohrn. After Zacher. Zacber. [Zacber. 



5. D. elongata Zacber. After Zacber. i 11. ST. marmoricrura Serv. After 



6. D. pluenix Zacber. After Zacber. 



7. Picrania liturata Zacber (nee Stal). 



After Zacber. 



12. K. piepersi Burr. After Zacber. 



13. Cranapygia kallipyga Dobrn. 



14. C. dxmeli Dobrn. 



