wheeler: ants of the genus formica. 491 



the tibiae, brown. Petiole remarkably broad, its superior border 

 rounded, entire or only slightly excised. 



Italy: Pracchia and Abetone in the Apennines (C. Emery). 



75. F. EXSECTA PRESSiLABRis Nylander. 



F. pressilabris Nylander, Acta. Soc. Femnica, 1846, 2, p. 911, pi. 18, fig. 21, 

 ^ 9 c? ; Meinert, Naturv. abh. Dansk. vid. selsk. (5) 5, 1860, p. 45, 

 ^ 9 d'; Dalla Torre, Catalog. Hymen., 1893, 7, p. 205, {in part). 



F. exsecta subsp. pressilabris Ruzsky, Formicar. Imper. Ross., 1905, p. 363, 

 figs. 69, 70; Emery, Deutsch. ent. zeitschr., 1909, p. 191, fig. 5; Ibid., 

 1912, p. 672. 



Worker. Length 3.8-6.5 mm. 



Maxillary palpi very short, 5-jointed, or 6-jointed, according as the 

 fourth joint is more or less distinctly separated into two small joints. 

 Clypeus with a transverse impression just behind and parallel with its 

 somewhat reflected anterior border. Front convex anteriorly, de- 

 pressed behind. 



Sculpture very fine and superficial. Gaster, especially at the base, 

 lustrous. 



Pubescence very short and sparse. 



Red portions of body darker than in the typical exsecta, the dark 

 spots more extensive, antennae and legs often brown. 



Female. Length 6-7.5 mm. 



Much smaller than the female of the true exsecta and very shining. 

 Palpi as in the worker. Pubescence extremely short and sparse. 

 Dark brown, anterior portion of head, ventral and lateral portions 

 of thorax, mesonotum in part, petiole below, and tip of gaster, often also 

 the femora and the scapes, paler or darker red. 



Male. Length 5-7.5 mm. 



Smaller than the male of the typical exsecta; the posterior margin 

 of the head more feebly excised; maxillary palpi as in the worker; 

 eyes hairless. 



Host (Temporary). F.fusca. 



Northern Europe, Caucasus, Siberia, Turkestan, L^ral Mountains. 



76. F. exsecta pressilabris var. foreli Emery. 



F. pressilabris Mayr, Verb. Zool. hot. ver. Wien, 5, 1855, p. 339, S 9 (nee 9 ); 



Europ. Formicid, 1861, p. 46; Dalla Torre, Catalog. Hymen., 1893, 7, 



p. 205 {in part). 

 F. exsecta st. pressilabris Forel, Denks. Schweiz. gesell. naturw., 1874, 26, p. 55, 



^ 9 &. 

 F. exsecta pressilabris va,r. foreli Emery, Deutsch. ent. zeitschr., 1909, p. 192, 



y 9 cf. 



