MYRMICA. 123 



the former high and angled anteriorly, the anterior surface in profile forming 

 an almost straight line to the junction with the thorax. Long. 4-3-6 mm. 



$ Colour and characters as in the <, the sculpture being a little stronger. 



Thorax : mesonotum deeply striate longitudinally. Long. 5- 5-6- 8 mm. 

 (6-5-7 mm. teste Forel.) 



<$ Blackish brown, shining ; mandibles, base and apex of the scape and 

 funiculus of the antennae and the joints of the legs, and sometimes the extremity 

 of the g aster, yellowish ; tarsi yellow. 



Head longitudinally striate with a faint, smooth, central channel ; frontal 

 area longitudinally striate ; scape of antennae about half the length of the 

 funiculus, gradually curved at the base ; club of antennae five- jointed, the 

 first joint of which is not so broad as the four following joints. Thorax 

 striate longitudinally, somewhat shining. Petiole finely striate ; post-petiole 

 smooth and shining. Long. 5-5-6-5 mm. 



Original description of Myrmica sulcinodis Nylander [Acta. Soc. 

 Sc. Fenn. 2 934 (1846)] : 



" Operaria : sordide rubida sparse flavo-pilosula, capite et abdomine 

 fusco-nigrescentibus, mandibulis antennisque pallide rufescentibus ; capite, 

 thorace et petiolo longitudinaliter striatim profunde exaratis ; antennis 

 scapo ad basin parum curvato ; metanoti spinis longis. 



^. Long. circ. 2 lin. Omnino similis praecedenti, tantum pallidior, anten- 

 narum scapis et nodis aliter formatis. Area frontalis obsoleta, striis percur- 

 rentibus. Laminae frontalis marginibus infra parum minus dilatatis. An- 

 tennae ad basin scapi parum curvatae, magis tamen quam in M. laevinodi. 

 Dentes metanoti fere longiores subulati. Nodi longitudinaliter sulcati, 

 sulcis rudibus sub-duodecim in utroque sat ordinatis (nee confusis ut in 

 praecedente). 



Femina : sordide fusco-rubescens sparse flavido pilosula, capite et abdomine 

 fusco-nigrescentibus, mandibulis antennisque sordide rufescentibus, pedibus 

 ferrugineo-pallescentibus ; capite, thorace et petiolo profunde longitudinaliter 

 striatim exaratis ; antennis scapo ad basin parum curvato ; metanoti 

 spinis longis. 



$. Long. 2^ lin. Similis iterum feminae praecedentis, iisdemque notis a 

 ^ ab ^ ejusdem dignoscenda. Characteres capitis ut in ^. Spinae metanoti 

 longae subulatae, obsolete curvatae. Nodi lateribus imprimis profunde 

 longitrorsum ordinate sulcatis. (Alae desunt.) " 



Habitat. 



According to Professor Emery Myrmica sulcinodis occurs in 

 North Europe and North Asia, direct east to Manchuria and 

 Amurland ; further south it is a mountain species : Pyrenees, 

 Alps, Apennines, Balkans, and Caucasus 25 . 



Its distribution in our Islands is as follows : 



Cornwall 22 . 



Devon, S. : Lustleigh Cleave and Sandy Gate, St. George's Clist 

 (Parfitt) 11 . 



Dorset : Wareham (Dale) 1 * ; Bloxworth (Dale) 18 ; Studland 

 (Dale) 18 ; Parley Heath (Dale) 18 ; Ringstead (Haines). 



Hants, S. : Bournemouth (Curtis) 3 ; New Forest (Hamm) 32 ; 

 Hants, N. : Fleet (E. A. Butler}. 



Surrey : Chobham (Saunders) 1 * ; Woking (Saunders) 18 ; Wey- 

 bridge (Donisthorpe). 





