320 BRITISH ANTS. 



Many males occurred in the New Forest and Seaton nests in 

 July, 1912, and on August 21st, 1913, a winged female and about 

 a dozen males were found in a nest in the side of the cliff at the 

 Landslip, Isle of Wight. Schimmer records a curious colony of 

 rubescens (?), which he discovered at Rosertal, near Seeburg, on 

 May 5th, 1908, consisting of fifteen dealated females, and only 

 twenty to thirty workers. He is of the opinion that this was a 

 queenless nest, which had adopted the dealated females after the 

 marriage flight, as some of the females were typical rufibarbis, 

 whilst others were varieties of. fusca 5 . 



Forel points out that rubescens has been frequently confounded 

 with rufibarbis* , and it is probable that some of the British records 

 of cunicularia and rufibarbis really refer to this variety. 



I have taken Cypliodeirus albinos Nic., Laelaps myrmecophilus 

 BerL, and Platyarthrus hoffmanseggi Brdt., in nests of rubescens. 



Formica rufibarbis F. 



Formica rufa Fourcroy Entom. Paris 2 452 (1785) 1 . Formica pratensis 

 Olivier Encycl. Method Ins. 6 504 (1791) 2 . Formica rufibarbis Fabricius Ent. 

 Syst. 2 355 (1793) 3 . Formica obsoleta Latreille Ess. Hist. Fourmis France 

 38 (1798) 4 . Formica cunicularia Latreille Ess. Hist. Fourmis France 40 

 (1798) 5 : Hist. Nat. Fourmis 151-156 (1802) 6 . [" La fourmi mineuse " 

 Huber Moeurs Fourmis 324-325 (1810) 7 ]. Formica cunicularia Nylander 

 Acta. Soc. Sc. Fenn. 2 913-915 1059 (1846) 8 ; Forster Hym. Stud. 1 25 

 (1850) 9 . Formica stenoptera Forster Hym. Stud. 1 26 (1850) 10 . Formica 

 cunicularia F. Smith Proc. Ent. Soc. Lond. (n.s.) 1 82 (1851) 11 ; Schenck 

 Jahrb. Ver. Naturk. Nassau 8 40-43 12 139 13 145 14 (1852) ; Mayr Verh. Zool. 

 Bot. Ver. Wien 5 342-344 (1855) 15 ; F. Smith Trans. Ent. Soc. Lond. (n.s.) 

 3 103 (1855) 16 [in part] : Cat. Brit. Foss. Hym. 8 (1858) 17 [in part]. Formica 

 fusca r. rufibarbis Forel Denkschr. Schweiz. Ges. Naturw. 26 54 18 138 19 141 20 

 218 21 357-35S 22 408 23 (1874). Formica cunicularia Saunders Trans. Ent. 

 Soc. Lond. 1880 206 24 [in part]. Formica rufibarbis Er. Andre Spec. Hym. 

 Europe 2 182 (1881) 25 ; Lubbock Ants, Bees, Wasps 80 (1881) 26 ; Wasmann 

 Ste't. Ent. Zeit. 51 305 (1890) 27 . Dalla Torre Cat. Hym. 7 209-210 (1893) 28 . 

 Formica cunicularia Farren-White Ants' Ways 182 199 233 (1895) 29 [in part]. 

 Formica fusca race rufibarbis Saunders Hym-Acul. 22 (1896) 30 [in part]. 

 [Formica cunicularia Vic. Hist. Hants 1 115 (1900) 31 ?] ;Vic. Hist. Surrey 

 1 84 (1902) 32 . Formica rufibarbis Wasmann Mitt. Schweiz. Ent. Gesell. 11 67- 

 69 (1905) 33 ; Frisby Proc. Holmesdale NH. Club. 1905 74 (1906) 34 ; [Vic. 

 Hist. Kent 1 116 (1908) 35 ?]. Formica fusca race rufibarbis Donisthorpe 

 Trans. Leicester Lit-Phil. Soc. 12 223 (1908) 36 [in part]. Formica fusca 

 rufibarbis Emery Deutsch. Ent. Zeitschr. 1909 197 37 . Formica rufibarbis 

 Wasmann Archiv. Trim. Inst. R. Grand Ducal Luxemburg 4 81-88 (1909) 38 ; 

 [Silverlock Nat. 35 13 (1910) 39 ?]. Formica fusca subsp. rufibarbis Donis- 

 thorpe Entom. 44 390 (1911) 40 : Ent. Rec. 25 66-67 (1913) 41 . Formica 

 rufibarbis Wheeler Bull. Mus. Comp. Zool. 53 514-516 (1913) 42 ; Donisthorpe 

 Ent. Rec. 26 41 (1914) 43 . 



^ The large ^ has the clypeus, cheeks, frontal area, scapes and base offuniculi, 

 whole of thorax, scale and legs clear pale red, or reddish yellow ; head posteriorly 

 and gaster blackish brown. The mandibles are red brown, tarsi with last joint 

 slightly infuscate ; the pubescence on gaster gives it a greyish appearance. 



The medium and small workers possess brown patches on the pronotum 



