MYRMICA RUGINODIS. 21 



Mas. Nigro-fuscus, nitidus, flavide pilosulus; mandibulis, fla- 

 gellis, articulis pedura et tarsis testaceo-pallescentibus ; ab- 

 dominis apice pallide rufescente. 



Myrmica ruginodis, Nyl. Adno. Mon. Form. Bor. Eur. 929. 2 ; 

 Addit. Adno. p. 1052. 19; Form. Fr. et d'Alger. p. 79. 3. 



Foerst. Hym. Stud. Form. p. 66. 36. 



Schenck, Beschr. Nass. Ameis. p. 77. 



Smith, Brit. Form. p. 116. 2. 



Mayr. Form. Austr. p. 135. 4. 

 Myrmica vagans, Curtis, Trans. Linn. Soc. xxi. 213. 3. 



Female. Length 2^-3 lines. Rufo-testaceous, thinly sprinkled 

 with yellow hairs ; the posterior margin of the scutellum, and 

 sometimes that of the prothorax, the head above, and the 

 middle of the abdomen, fuscous; the scape of the antennae 

 bent, and slender at its base ; the head and thorax longitudi- 

 nally and coarsely striated ; the nodes of the petiole rugose ; 

 the abdomen smooth and shining ; the metathorax with two 

 acute spines. 



Worker. Length 2 lines. Pale ferruginous, thinly sprinkled 

 with yellow hairs ; the head above and the abdomen in the 

 middle fuscous ; the head longitudinally striated ; the thorax 

 longitudinally rugose ; the abdomen smooth and shining ; the 

 scape of the antennae bent, and slender at its base ; the meta- 

 thorax armed with two long acute spines ; the nodes of the 

 petiole rugose. 



Male. Length 2i-3 lines. Dark blackish brown, smooth and 

 shining ; the mandibles, flagellum, the articulations of the legs, 

 the tarsi, and tip of the abdomen, pale rufo-testaceous ; the 

 scape of the antennae half the length of the flagellum. 



Dr. Nylander says the male of this species is the F. vagans of 

 the Museum at Kiel, and that its female represents the F. rubra 

 of Fabricius, the male representing the F. ccespitum : which 

 species is identical with the F. rubra of Linnaeus, it is impossible 

 to determine ; but probably it was the same as the present 

 species. Under these circumstances, we adopt the names given 

 by Nylander, which avoids the possibility of error. 



2. Myrmica scaforinodis. 



F&mina. Testaceo-ferruginea, sparse flavido-pilosa ; capite 

 supra, scutello postice, abdoininisque dorso medio fuscescen- 

 tibus ; scapo ad basin geniculatim flexo ; capite, thorace et 



