30 MYRMICA NYLANDER1. 



the flagellum, the scape, and the tibiae and tarsi, pale ferrugi- 

 nous ; the head and thorax finely striated longitudinally ; the 

 metathorax with two short stoutish spines ; the nodes of the 

 petiole rugose above ; the legs and abdomen sprinkled with a 

 few short glittering hairs. 



Worker. Length H line. Rufous ; the club of the antennae, 

 the head above, and the disk of the thorax, more or less fus- 

 cous ; the head longitudinally striated ; the thorax and nodes 

 of the petiole rugose ; the femora more or less dusky in the 

 middle ; the abdomen smooth and shining, and, as well as the 

 legs, sprinkled with glittering hairs. 



Male. Length If -2 lines. Black ; the articulations of the legs 

 and the tarsi pale testaceous; the head pubescent, and, as well 

 as the thorax, slightly shining ; the abdomen very smooth and 

 shining ; the wings milky-white. 



This species is not frequently met with in the vicinity of Lon- 

 don. I have found its colonies under bark : all the sexes were 

 of a lighter colour than is usual. In Scotland, as I have been 

 informed by a working collector, it is commonly found beneath 

 the bark of fir-stumps. 



9. Myrmica (Leptothorax) Nylanderi. 

 F&mina. Rufo-pallida ; abdominis fascia lata fusca ; capite et 



mesothorace subtiliter longitudinaliter striatis; alis hyalinis, 



nervis pallidis subobsoletis. 

 Operaria. Rufo-pallida ; capite abdomineque (basi excepto) fus- 



cescentibus ; capite longitudinaliter striato \ thorace nodisque 



subtiliter rugoso-scabriusculis ; area frontali nitidiuscula ; 



spinis metathoracis mediocribus acutiusculis. 

 Mas. Fusco-niger, nitidus ; inandibulis, antennis pedibusque 



pallide testaceis ; alis lacteo-hyalinis. 



Myrmica Nylanderi, Foerst. Hym. Stud. Form. p. 53 < (1850). 

 Myrmica cingulata, Schenck, Nass. Ameis.p. 104 (1852). 



Nyl. Form. Fr. et d'Alger. p. 93. 20. 

 Myrmica unifasciata, Smith, Brit. Form. p. 128. 



Curtis, Trans. Linn. Soc. xxi. 216. 12. 



Stenamma albipennis, Curtis, Trans. Linn. Soc. xxi. p. 218. 15 . 

 Myrmica parvula, Schenck, Nass. Ameis. pp. 103, 140 ? 



Mayr, Form. Austr. p. 176. 12 $ $ . 

 Leptothorax Nylanderi, Mayr, Form. Austr. p. 176. 11 $ J . 



Female. Length 1 f-2 lines. Pale ferruginous, yellowish ; the 

 head above slightly fuscous ; the abdomen with a broad fuscous 



