Extracts from the Minute-Book of the Linnean Society. 421 
Nov. 2. Dr. Leach, F.L.S., presented to the Society a series 
of what he considers one species of insect, and which he 
proposes to name Phasia variabilis, including Conops sub- 
coleoptratus of Linnzeus, Thereva subcoleoptrata, hemiptera, 
and crassipennis of Fabricius, all of which he considers 
| merely sexual distinctions and varieties. 
31% CATA- 
