Gymnophora. 433 



species only can be seen satisfactorily on specimens in alcohool, as 

 in the dried specimens the fifth and also often the sixth tergite are 

 as shrivelled as the fourth). 



Length. Ratlier varying in size, 1,6 — 3 mm, the female the larger; 

 the species, upon the whole, distinctly smaller than arcuata. 



Remarks : As mentioned under arcuata one of three type-spec- 

 imens of Trineura rufipes from Fallén's collection, a female, belonged 

 to the present species. 



G. quartomollis is as common in Denmark as arcuata; Ermelund, 

 Egebæks Vang, Holte, Tisvilde, Bogø south of Sealand, Lohals on 

 Langeland, in Jutland at Hejls south of Kolding, at Nørre Sundby 

 and in Egense Skov at the east end of Limfjorden, and on Bornholm 

 at Rø and in Almindingen; the dates are ^Ve — ^^/s; I have taken it 

 in copula on ^Ve to ^V?. 



Geographical distribution: — Probably all Europe, towards the 

 nortli into Sweden; it occurs probably also in North America. 



3. G. fuliginosa Meig. 



1830. Meig. Syst. Beschr. VI, 215, 10 {Phora). — 1901. Beck. Abhandl. 

 zool. bot. Gesell. Wien, I, 72 (Phora). — 1920. Schmitz, Jaarb. Natuurh. Ge- 

 nootsch. Limburg 1919, 133, Fig. 11. — Gymnophora arcuata Schmitz, 1918. 

 1. c. 1917, 125, p. p. 



Male. Frons black, slightly pruinose, a little shining; outer 

 bristles of second row not present in my specimens. Antennæ black 

 or brownish black. Palpi black. Thorax black or blackish, distinctly 

 shining, the longitudinal furrows and the flat area not pruinose. 

 Scutellum with four bristles. Abdomen black, duU. Hypopygium not 

 large, of medium size, black and shining; anal tube distinct, but short, 

 yellowish. Legs darker than in the other species, brown to blackish 

 brown. Wings strongly blackish or brownish black tinged and veins 

 black or blackish; costa not reaching to the middle, thick and of 

 uniform thickness in the whole length; the apices of first, second and 

 third veins quite near to each other, nearly coalescing in one point 

 and thus the subcostal cell only about as broad as the enclosing 

 veins, and the lumen in the fork (cubital cell) quite small; fourth 

 vein rather evenly curved and ending vertically above the apex of 

 the fifth vein. Halteres with the peduncle dark, the knob brownish 

 or yellowish brown. 



Female. Similar; abdomen with tergal piates only on first, 

 second and sixth segments; the second broadly rounded behind, the 



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