22 ARKIV FÖR ZOOLOGI. BAND 11. N:0 26. 



This genus forms with regard to the nervation an inter- 

 esting connecting-link between the Myrmeleonini and the 

 Acanthaclisini. 



5. Acanthaclisini. 



Mestressa subfasciata (pl. 3, fig. 5). Acanthaclisis snh- 

 fasciata Banks, Proc. Ent. Soc. Wash., p. 141, 1913; Esben- 

 Petersen, Proc. Linn. Soc. N. S. Wales, p. 61, pl. 13, fig. 27, 

 1915, — Mestressa misera Na v as, Rev. Real Acad. Madrid, 

 p. 464, fig. 1, 1914. — One male and one female specimen 

 from Kimberley district, N. W. Australia, were present. 



It is an interesting genus, which is approaching the 

 Myrmeleonmi. 



Acanthaclisis fundata Walker, Cat. Neur. Ins. Brit. 

 Mus., p. 320, 1853; Esben-Petersen, Proc. Linn. Soc. N. S. 

 Wales, p. 61, pl. 7, fig. 8, 1915. — One female specimen from 

 Kimberley district, N. W. Australia. 



Acanthaclisis subtendens Walker, loc. cit. p. 321; Es- 

 ben-Petersen, loc. cit. p. 61, pl. 7, fig. 7. — One female 

 specimen from Derby, N. W. Australia, October. 



Cosina. 



Na VAS, Broteria, p. 47, 1912. 



Navas erected this genus for maclachlani Weele, and 

 låter on he has placed neozelandica Navas (Memorias, p. 168, 

 1912) from New Zeeland and vaga Navas (Ann. Soc. scient. 

 Bruxelles, p. 231, 1914), the patria of which is unknown, in 

 the same. The two last named species are unknown to me; 

 but they cannot be placed in Cosina, because Rs in the 

 hindwing of these species arises close to base of the wing; 

 there are only 5 crossveins between base of the wing and 

 the origin of Rs. In Cosina, however, Rs in the hindwing 

 arises further out than in any other genus in the Acantha- 

 clisini. To Cosina I only refer the species maclachlani Weele, 

 annulata Esb.-P. (Textfig. 8) and maculata Esb.-P. 



