104 Phoridae. 



female rather enlarged, the claws strongly curved, the hair above 

 between the claws long, flattened and band-shaped and the empodium 

 hairy below the apical part; these features are most developed on 

 the anterior tarsi. (How it is with regard to the non-Danish species 

 Strohli in this repsect I do not know). Wings with the costal cilia 

 more or less short; third vein forked and with a distinct bristle at 

 the base; foiirth to seventh veins present and reaching the margin. 



The developmental stages of this genus are to some degree known 

 yet it is most often the pupæ that have been met with, only of dome- 

 stica also the larva is described. Leon Dufour describes (Soc. Se. 

 Lille 1841, 420, fig. 6 — 17) the pupa of maculata (helicivora); it was 

 found on ^Va in shells of Helix aspersa and emerged in December; 

 Bergenstamm bred Bergenstammi from B. pomatia (Mik. Verh. zool. 

 bot. Geseli. Wien, XIV, 1864, 794); Keilin describes (Bull. Soc. 

 France Belgique (7), 45, 1911, 29) very thoroughly larva and pupa 

 of domestica (as Bergenstammi) from various species of Helix., and 

 further the pupa of maculata {Phora No. 1) and of notata {Phora 

 No. 2), the former from H. aspersa^ the latter from H. nemoralis. 

 Engel mentions (Wien. Ent. Zeitg. XXXV, 1916, 58) maculata bred 

 from snails from Cyprus. Finally Schmitz (Tijdschr. v. Entom. 51, 

 1909; Zeitschr. f. wiss. Insektenbiol. VI, 1910, 109 and especially 

 Biol. Zentralbl. 37, 1917, 32) mentions and describes the pupæ of 

 maculata., domestica (as Bergenstammi) excisa (probably = Bergen- 

 stammi)., larva and pupa of immaculata, pupa of Bohemanni^ all bred 

 from shells of H. pomatia., hortensis., nemoralis and arhustorum., and 

 fmally the pupa of an undetermined species bred from a Pupid snail. 

 As mentioned under the family Chappellier has recorded Bergenstammi 

 living as larva in bodies of Canary birds treated with formaline, but 

 this observation requires, I think, confirmation. I have myself men- 

 tioned (Vidensk. Medd. fra Dansk Nat. For. 71, 1920, 125) the pupa 

 of notata and Bergenstammi from shells of H. pomatia., hortensis., 

 nemoralis and lapicida taken in winter, the imagines of notata emerging 

 in February and March, those of Bergenstammi in April and May; 

 Bergenstammi I have also bred from putrid Planorbis corneus scraped 

 up and lying at the border of a streamlet, they were taken on ^"Z? 

 and the imagines were emerging and continued to emerge in August; 

 they copulated and deposited anew and imagines w^ere again emerging 

 (in a warm room) on ^^/i2 to V2 next year; finally I have examined 

 puparia of Bohemanni from H. pomatia., but they were empty. 



As before said, the only larva described is that of domestica of 



