1898.] 123 



obtained by Mr. King in Scotland (Loch Maree, 1890, 2 (J, 13 ?). 

 It occurrs in Algeria, and perhaps even at the Cape o£ Good Hope, 

 a ? of this, or of a closely allied species, now in the British Museum 

 (Nat. Hist.), having been captured by the author in 1874 at Ronde- 

 bosch, in the grounds of the Governor's country house at the foot of 

 Table Mountain. 



The larvae feed on decaying vegetable matter; in 1894 — 5 the fly 

 was reared upon rotten turnip by Mr. C. O. Waterhouse. 



FsycTioda degenera\ Walker, List Dipt. Ins. Brit. Mus., part i, 33 (1848), 

 described from a single S from St. Martin's Falls, Albany E,iver, Hudson's Bay, 

 and likened to Ps. nervosa (phalcenoides), approaches Ps. albipennis in structure of 

 the genitalia. This indication may suffice for the identification of the species in that 

 locality without actual comparison of specimens with the type ; the description is 

 " catalogical," and of no account, but cannot well be added to without fresh material. 



PxycTioda cinerea, Banks, "The Canadian Entomologist," xxvi, 331 (1894), may 

 rank doubtfully in this Section, assuming the black colour of the scales on the tarsi 

 to be dependent upon the direction of the light. The genitalia of the male seem 

 from the description to have been shrivelled up by overpowerful fumes of something 

 in the killing-bottle — a common accident that cannot be too carefully guarded 

 against by collectors, especially in hot weather. 



4. PSTCHODA SEXPUNCTATA, Curtis, = ALTEENATA, Say. 



Tipula XphalcBnoides, var., Scop., Ent. Cam., p. 324, No. 864 (1763). 



II Trichoptera X Phalcenoides, Meig., *Klas8if. d. Zweifl., Bd. i, 43 (1804). 



PsychodaX phalcBnoides, id., System. Beschr. [ed. i], i, 104 (1818) ; id., op. cit. 

 [ed. ii], i, 82 (1851) ; Macq., Ins. Dipt. Nord France, p. 116 (1824) ; id., Hist. Nat. 

 Ins. Dipt [^Suites d Bufforr\, i, 164, pi. iv, 12 and 13 (1834) ; Bouche, Naturgesch. 

 d. Ins. [Act. Nov. Acad. L. Cses. Nat. curios.], p. 28, tab. ii, 20 [larva and head] and 

 22 [pupa] (1834) ; Zett., Ins. Lappon., 824 (1840) ; id.. Dipt. Scand., ix, 3702 

 (1850) ; Siebke, Nyt Mag. f. Naturvid., p. 53, No. 823 (1850) ; Lucas, Bull. Soc. 

 Ent. France (1885), p. xliii [habit].— Ps. alternata. Say, *W. Q,. E,., ii [Long's 2nd 

 Exped.], p. 358 (1824) ; id. [ed. Le Coute], i, 242 (1859) ; ? Williston, Ent. News, 

 iv, 114 (1893) ; Banks, Ca. Ent., xxvi, 330 (1894) ; ? Willist., Trans. Ent. Soc. 

 London (1896), p. 283, pi. ix, 49 [wing undenuded]. — Ps. sexpunctata. Curt. Brit. 

 Ent., xvi, 745 (1839) ; Walker, Ins. Brit. Dipt., iii, 255, pi. xxvi, la to i [details] 

 (1856) ; Schiner, En. Aust. Dipt., ii, 636 (1864) ; v. d. Wulp, Dipt. Neerl., i, 314, 

 pi. ix, 12 and 13 [details] (1877) ; ! Etn., Ent. Mo. Mag., 2nd ser., iv, 130 (1893), 

 and V, pi. iv, Ps. 4 [details] (1894). — Ps. marginepunctata, *Eoeer, fide Walker 

 [inter synon., op. supra cit., iii, 255 (1856)]. 



Wings light brownish-grey, with whitish markings on the disc in the bristling 

 hair (seen best when the wing is pointed towards the light over a dark background), 

 and with six or seven small spots at the margin, formed of dark hairs inclined out- 

 wards, viz., a brown or blackish spot, interior to the fringe, at the end of every 

 nervure that has bristling hair (except the mediastinal), set off by a whitish spot 

 that marks the ending of the bristling liair ; also, in or about the middle of the 



L 2 



