164 Mr. D. Sharp on the genus Criocephalus. 



Megasemum, defined and male of M. 4t-eostatum described. 

 Cephaloerins, n. g. for Crio. syriacus, Reitter. 

 Criocephalus pinctoruni, Woll., established as a valid species. 



Female described for first time. 

 C. deceptor, coreanus, tibetanus, exoticus, n. spp. 

 C. ferus, var. hispanicus, n. var. 

 C. obsoletus, Rand. = (mexicamis, Th.), n. syn. 

 C. rusticus, description of an aberration. 



Explanation of Plate IX. 



Fig. 1. Under-side of head of Criocephalus ferns. 



3. Labrura of „ ferns. 



4. » j> 5) rusticus 



5. Larva of Criocephalus ferns nearly full-grown. 



6. ,, „ Asemum striatum, profile. 



7. Spines terminating the body of larva of Criocephalus ferus 



seen from above and in profile. 



8. Do. do. Asemum striatum. 



9. Spine terminating body of larva of Bhagium seen from 



above. 



10. Portion of larva of Criocephalus ferus, showing form and 



position of spiracles and the vestigial legs. 



11. One of the legs more highly magnified. 



12. Egg of Criocephalus ferus. 



13. Portion of front-leg of Asemum striatum $ showing the 



two spurs. 



14. Portion of front-leg of Criocephalus rusticus $ showing the 



single spur. 



15. Portion of front-leg of Criocephalus rusticus 9 abnormal 



specimen from Amanus mountains, showing the existence 

 of two spurs as in Asemum. 



