áöO GAERY DE N. HOI' GH 



front and the presence of anterior acrostical bristles. Portschinsky noticed 

 that there were two species and, overlooking Eondani's work, retained the 

 name jiratorum M^iG. for the species which Eondaxi calls saltmmi ana 

 gave to the other species (for which Eoxdani retained Meigen's name) the 

 new name viridescens. We have therefore : D. pratorum Meig., Eond. 

 equals D. vmdescens Port, and D. salt un m Eoxd, equals pratorum Port, 

 non Meig. 



Muscinae ariciœformes. 



H((euiatol>ia. — Another important matter which has also been the 

 subject of correspondence between Prof. Bezzi and myself and as to which 

 we are also in agreement is the following: Haematohiairritans L., Fall., 

 Zett., is the same as H. atripalpis Bezzi, the latter name falls into the 

 synonymy. H. tibialis Desv. is a good species and is the same which 

 EoNDANi called H. irritaus. The latter species is common in Itnly, the 

 former rare. The mistake was Eondani's who had the two species in his 

 collection labelled irritaus and atripalpis. We hawe them: 



Haeintdohiu tibialis Desv. equals //. irritaus Eond. non L., Fall., 

 and Zett, 



H. irritaus L., Fall., Zett. non Eond. equals H. ah'ipalpis Bezzi 

 (and Eondani ■ in litt.j). 



In one particular Prof. Bezzi and I do not agree. I do not consider 

 the genus Lyperosia well founded and think it does not differ essentially 

 from Haeiuatobia. 



( S('p(ir((fiiii cdituni est die êO. Junii 1000.) 



