[Berliner Entomolog.Zeitschr. Bd. XLII, Jahrg. 1897, Heftlllu.IV.) 145 



Identification of two genera 

 of Nemestrinidae 



published by Bigot, together with some remarks on Dr. Wandolleck's 

 paper on that family, 



by C. M. Osten Sacken. 



The recent publications of Dr. Wand oll eck on the genera 

 Colacc W. and Trichopsidea Westw. in the Entomol. Nachrichten, 

 Berlin. 1897, p. 241-252. and in the Wien. Ent. Z. 1897, p. 213— 215, 

 induced me to look over my notes about Nemestrinidae, and to 

 publish my results concerning two genera not mentioned by that 

 author. One of these genera proved to be identical with Symmictas 

 Loew, which Wand oll eck considers, in his second paper, as inter- 

 mediate between Oolax and Trichopsidea. 



During a visit to my friend G. H. Verrall Esq. in Newmarket, 

 in August 1894, I took occasion to examlne the type of the Ne- 

 m es tri nid genus Dicrotrypana (Bigot) in this author's collection, 

 now in the former's possession. [D. ßavipilosa Q, Ann. S. E. Fr. 

 1879, Bullet, p. LXVII. Patria: Europa meridionalis, with a 

 doubt.) I compared on the spot its type with Loew's figure of 

 Syrinnictus in the Berl. Ent. Z. 1858, p. 111, Tab. I, f. 26— 30, and 

 found that there was a difference in the venation. Since then Verrall 

 seilt me a beautiful drawing of the wing of Bigot's species, and also 

 an explanation of the condition of the other wing of the specimen. 

 From these data we may safely conclude that both genera are 

 identical, and that the discrepancy in the venation is merely an 

 accidental aberration. 



Loew's original description (1858) referred to S. costatus from 

 S.-Africa. In his Dipt. Sudafr. 1860 p. 248 [320] Loew supple- 

 mented this description by the following important notice.- „A Sym- 

 mictas occurs in Andalusia, which T tako for identical with S. costatus. 

 The only specimen which I saw is in the Royal Museum of Berlin. 



XLII. Heft III u. IV. 10 



