Synonymica about Tipulidae. 253 



afjinis. But as the two latter are not synonyms, as I have just 

 shown, the question remains open, and as West hoff has described 

 the feniale only, it will not be easy to solvc it until the male is 

 diseovered. 



The synonymy of the two species, as I coneeive it, would stand 

 as follows: 



Dicranomyia autumnalis Stäger. 



Glochina autumnalis Stäger, Dipt. Dan. p. 51, in Kröyer'a 

 Tidskr. IIl, 1840; 0. Sacken, Stett. Ent. Zeit. 1854. — 

 Denmark (St.); S. Petersb. (O.S.); Upper Austria (Mik); 

 England (Verrall). 



Dicranomyia stigmatica Meig. 



Limnobia stigmatica Meig. VI, p.279; Stäger, 1. c; 0. Sacken, 

 Stett. Ent. Zeit. 1854 (Glochina). — Hamburg (Meig.); 

 Denmark (St.); S. Petersb. (O.S.); Tirol, at 6000' altitude 

 (Mik). 



Zettevstedt's descriptions (X, p. 3905) ought to be quoted with 

 the warning that, as I have shown, they are not based upon actual 

 specimens; one of them is an incomplete translation from Stcäger, 

 the other a Compound of Statements drawn from two authors. About 

 Dicr. Osten Sackenii Westhoff, D. stigmatica Schin. (not Meigen), 

 and D. affinis Sehum., I am not able to form any opinion. 



In YerralTs List etc. (E. M. M. XXIII, p. 117) he followed 

 Schiner in the matter of the synonymy of the two species. Specimens 

 which he kindly sent me recently prove that he changed his view 

 about autumnalis, and that he now agrees with me. About stigma- 

 tica he was evon at that time doubtful (1. c. p. 159). The male speci- 

 men he sent me is certainly ditt'erent from the male of the forceps of 

 which I published a ligure in 1854. 



I believe Verrall is right in considering glabrata Walk, as a 

 synonym of sericata Meig. The latter is the type of Meigen's 

 spurious genus Glochina; like stigmatica and autumnalis it has a 

 male forceps of a very peculiar structure, which has never been 

 noticed in descriptions; it is not rare about Heidelberg in May. 



There seem to exist a large number of undescribed Dicrano- 

 myiae in Europe, and also a considerable number of described, but 

 not yet identified, species. It would be impossible to treat them 

 monographically without careful drawings and descriptions of their 

 male forceps's, taken from livirig or quite fresh specimens. 



