120 [M^iy- 18»^- 



Section O of Psychoda (Maruina, F. Miil, MS.). 

 If (as is probable) the inaect be virtually unicolorous, or without 

 wing-markings, like many species of the next Section, Miiller's omis- 

 sion to describe the typical species is intelligible. Characters of 

 importance, that should be recorded, are noted in the preceding 

 tabulation, in step A- 



Section I or Pstchoda ; British species, Nos. 1 — 5, 

 and Algerian, 'No. XVI. 



Refer ante, 2nd ser., vol. iv, p. 33, step 7, and p. 129 ; also vol. v, 

 pi. iv, Ps. 1 — 5 (details), and the above tabulation, steps B, b. 



AflB.nities nearest with the preceding Section, but approaching 

 the 3rd Section of Pericoma in the distribution of the bristling hair 

 upon the wing ; the British species scheduled b, f, in the tabulation 

 of Major Sub-Divisions of Psychoda (just above) making a near 

 approach to the Algerian Pericoma, No. X {ante, 2ud ser., vol. vii, p. 

 130, step (i?c??) ; and those tabulated 5, ft, approaching less closely 

 P. advena (Joe. cit., step d^). The aflBnity of Psychoda to the 5th 

 Section of Pericoma, and to Ulomyia, in another feature, has been 

 referred to already in connection with that Section {ante, 2nd ser., 

 vol. vii, p. 120). 



The species are here arranged in their revised order, but their 

 original numbering is retained : hence the sequence Nos. 2, 3, 4, 1, 

 and 5. 



2. Psychoda phaljjnoides, Liune. 



Tipula alls deflexis cinereis ovato-lanceolatis ciliatis, Linn., Fn., Suec. [ed. i], 

 p. 336, No. 1148 (1746).— r. phalanoides, id., Syst. Nat. [ed. x], p. 588, No. 32 

 (1758); id, Fn. Suec. [ed. ii], p. 438, No. 1771 (1761); Miiller (1764) ; Linn., 

 Syst. Nat. [ed. xii], ii, 977, No. 47 (1767) ; Fabricius (1775, &c.) ; De Geer, Mem. 

 p. serv. a I'Hist. d. Ins., vi, 422, No. 30, tab. xxvii, 6—9 (1776) ; id., Abhandl. z. 

 Gesch. d. Ins., vi, 158, taf. xxvii, 6—9 (1782) ; Eetz., C. De Geer, Gen. and Sp. Ins., 

 p. 196, No. 1297 (1783) ; Gme'lin, Linn. Syst. Nat. [ed. xiii], i, par. v, p. 2825, No. 

 47 (1788) ; Eossi, Fn. Etrusc, p. 273 (1790) ; Berkenhout (1795, &c.) ? ; Schrank, 

 Fn. Boica, iii, 82, No. 2349 (1803) ; and any other authors attributing spotless wings 

 to the species thus named. — T. nervosa, Schrank, op. cit., I. c, No. 2350. 



Bibio phalcEnoides, Geoff., Hist. Abreg. d. Ins., ii, 572, No. 4 (1762) ; Fourcroy, 

 Ent, Paris, ii, 515, No. 4 (1785) ; Olivier, Encyclop. Method. 



Psychoda muraria, Latreille, Hist. Nat. d. Crust, et Ins., xiv, 293 (1805). — 

 Fs. phalcenoides, Fab., Syst. Antl., p. 49 (1805) ; Lat. (1809, &c.) ; Lamarck 

 (1816, &c.) ; Walker, Ins. Brit. Dipt., iii, 255 (1856) ; Schiner, Fn. Aust. Dipt., ii, 

 637 (1864) ; v. d. Wulp, Dipt. Neerland., i, 315 (1877) ; Etn., ante, 2nd ser., vol. iv, 

 129 (1893), and vol. v, pi. iv, Ps. 2 [details] (1895).— Ps. nervosa, Meig., Syst. 

 Beschr. [ed. i], i, 106 (1818), and id. [ed. ii], i, 84 (1851) ; Macquart, Ins. Dipt. 



