Insects of Samoa and other Samaon terrestrial arthropoda. Pt. 6, Fasc. 2, Nematocera / by F.W. Edwards.

  • Edwards, F. W. (Frederick Wallace), 1888-1940.
Date:
[1928?]
Catalogue details

Licence: In copyright

Credit: Insects of Samoa and other Samaon terrestrial arthropoda. Pt. 6, Fasc. 2, Nematocera / by F.W. Edwards. Source: Wellcome Collection.

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    M',M VTOCICI.’ A. ()4. PsychocJa quadnfilis, sp. ii. ICxI -lig. I 1 Bflonj^s to tlu‘ phaliieKoides ji,i'oii|), tin* iihmiiIkms oI which it ch^scly I'esenibles in all rosjx'cts (*xc('|)t as regards details ol structure ol antennae and i^enitalia. Sensory hairs ol antennai* (except piuhaps on llu* last, two or thn'e segments) with lour hi'anehes. as in /h j)iisill(( Tonn.. three iMung diri'ctcd forwards and one backwards. Antennae with two small apiiad segiiuMits. the first ol’ which is very small and not well sepai'atiMl Irom seguKuit 1 :> ; terminal TexT-t'K!. 11.—P.^iirlindd q/tadrijilis, sp. a. (c) Tip of aiitonna : (//) gonital plate of . ; {(•) forceps and {d) vtnitral appendage of segment larger and somewhat flask-shaped. Segment 13 without a distinct neck. ])ut with a bristle-like apical process on one side. Male hypopygium very much as in P. seventii Tonn. and 1\ surcoufi, Tonn. Ventral appendages with greatly enlarged base, the terminal spine about one-third as long as the stem. Force])s with the basal segment very short, swollen beneath : terminal segment with three rather long hairs (as in P. severini) and some shorter ones ; seen from the side its lower margin is very strongly convex, much more so than in P. seven'ni. Subgenital plate of female narrowed and emarginate apically, the lobes not divergent. IJpolu : Apia, 5 d'? 1 25.ii.1925, reared from rotten pumpkin. P. (jiiadrifilis diffcT-s from all the Kuropean species exc’cpt P. pusilht in the
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