14 THE CANADIAN ENTOMOLOGIST. 



Eutreta diana ; larvae in gall on wild sage, Artemisia tridentata, in 



Mo. (Riley, Osten Sacken). 

 Straussia (Trypeta) longipennis ; the fly oviposits in stalk of Helian- 



thus (sunflower) near tip, in June and July (Lintner, 3d. Rep.) 



Fam. Sepsid^ : 



Nemopoda cylindrica ; larva? in human excrement (Bouche', West., 



Sch.) 

 Themira putris ; larva? in slimy water and mud (Sch.) 



Fam. Piophilid/E : 



Piophila ; larvae in cheese, ham-fat and fatty animal matter in general 

 (Swamm.). In salt (Germer). 



Fam. Psilid/E : 



Chyliza leptogaster ; bred from irregular galls the size of a walnut on 

 the stems of Spiraea opulifolia — not known that the galls were 

 caused by these flies (Scholtz). 



Psila rosae ; larvae in roots of Daucus (carrot) and Brassica (Sch.) 



Fam. Oscinid^e : 



Platycephala ; pupae of one species in reed stems (Boie) 



Meromyza americana ; larvae in stems of wheat, rye and probably in 



grasses (Riley, Webster and others). 

 Chlorops ; larvae of several species live in holms of grasses and 



cereals. Chi. piimilionis, Chi. glabra; larvae injuring wheat 



(Bjerkander, Westw.) 

 Chloropisca prolifica ; supposed by Dr. Lintner to breed in grass of 



lawns (7th Rep. N. Y. Ent, p. 239). 

 Lipara ; larvae in reed stems, causing large galls near the tops, in 



which they pupate (Sch.) 

 Oscinis ; larvae live in holms of grasses and cereals. O. frit ; larvae 



in husks of barley in Sweden (Linn.) Species in wheat in U. 



S. (Garman, Webster). 

 Siphonella ; larvae in grasses, also in other plants (Sch.) Two species 



in flower-heads of various Cynerocephalae (Egger, v. Frauenf. 



Larvae of one species in worm-eaten nuts, in company with cur- 



culionid larvae (Perris, v. Frauenf) 

 Elachiptera ; pupae on a species in large quantities under the bark of 



old poplars (Sch.) 



