MYRMICA LOBICORNIS. 25 



Male. Length 2 lines. Dark fuscous, or nearly black ; antennae, 

 abdomen at the apex, and the legs pale ferruginous ; the head 

 and thorax longitudinally rugose ; the frontal area rugose- 

 striate ; the basal node of the petiole rugose, the second node 

 as well as the abdomen smooth and shining. 



This is a very local species : it has been captured by Mr. Dale 



in Wales, and by Mr. Curtis and Mr. Dossetor in Hampshire. I 



have received specimens from Dr. Nylander, Dr. Myer, and Mr. 



Curtis, and, after a careful comparison, I consider them without 



oubt to be all one species. 



5. Myrmica lobicornis. 



F&mina. Sordide rubra, sparse flavido-pilosula ; capite supra, 

 mesothorace partial, scutello posteriori abdominisque dorso 

 medio fuscescentibus ; mandibulis et pedibus rufo-testaceis ; 

 capite striato ; thorace et petiolo longitudinaliter striatis, 

 profunde rugosis; antennarum scapo ad basin geniculatim 

 flexo, geniculo supra acute subdenticulato. 



Operaria. Obscure rubida, sparse flavido-pilosula ; caetera ut in 

 praecedente. 



Mas, Nigro-fuscus ; mandibulis, antennis pedibusque pallide 

 ferrugineis ; thorace et petiolo sublsevibus ; antennarum scapo 

 ad basin curvato. 



Myrmica lobicornis, NyL Adno. Mon. Form. Bor. Eur. p. 932. 4 ; 

 Addit. Adno. p. 1052. 21 ; Addit. Alt. p. 31 ; Form. Fr. et 

 d'Alger. p. 82. 7. 



Foerst. Hym. Stud. Form. p. 69. 38. 

 Schenck, Beschr. Nass. Ameis. p. 82. 

 Mayr, Form. Austr. p. 140. 7. 

 Smith, Cat. Form. p. 116. 8. 



Myrmica denticornis, Curtis, Trans. Linn. Soc. xxi. 215. 7. 

 Smith, Brit. Form. p. 120.5. 



Female. Length 2 lines. Ferruginous ; the head above, the 

 hinder portion of the mesothorax, the scutellum posteriorly, the 

 mesosternum, and the abdomen above, fuscous, sometimes 

 blackish ; the abdomen very smooth and shining ; the antennae 

 geniculated at their base, the angle of the geniculation pro- 

 duced into an acute tooth ; the head longitudinally striated ; 

 the metathorax with two slightly divergent spines ; the nodes of 

 the petiole rugose. 



Worker. Length 2 lines. Closely resembling the female ; the 



c 



