MYRMECINA. 



tions of the legs, and the tarsi pale testaceous ; head highly 

 polished, smooth and shining. Thorax smooth and shining ; the 

 prothorax forming a neck, being narrowed towards the head ; 

 the metathorax truncate and very delicately reticulated; the 

 spines very minute. Abdomen ovate, smooth and shining ; 

 the nodes of the petiole smooth ; the first node petiolated, the 

 second widest, and globose. 



I believe this insect to be identical with the GEcophthora pu- 

 silla of Heer the House-ant of Madeira. 1 have compared it 

 very carefully with a series of the ant collected by T. V. Wol- 

 laston, Esq. in Madeira, and cannot detect any difference ; it 

 doubtless is an importation. Specimens have been forwarded to 

 me from Exeter, taken in a hot-house ; a solitary example was 

 taken some years ago on a wall at Battersea, since which time 

 I found three specimens on a garden wall at Hampstead. I am 

 very much inclined to think that it is the same species described 

 by Dr. Nylander as Myrmica pallidula, and it may also be the 

 (Ecophthora subdentata of Dr. Mayr. The species is described 

 here, as in all probability it will in the course of time become 

 generally distributed and naturalized, like the Myrmica molesta, 

 our common house-ant. 



Genus 2. MYRMECINA. 



Myrmecina, Curtis, Brit. Ent.vl fol. 226 (1829). 



Myrmica, pt., Nyl. Addit. Alt. Adno. Mon. Form. Bor. Eur. p. 40 



(1847). 



Antennae 12-jointed in the female, the club 3-jointed. Max- 

 illary palpi 4-jointed ; the labial palpi 3-jointed. Anterior wings 

 with one complete marginal cell, appendiculated at the apex, 

 and one complete submarginal cell. The metathorax spined in 

 the females and workers, the clypeus bidentate. The mandibles 

 obsolete or subobsolete in the males. 



1. Myrmecina Latreillii. 



F&mina. Nigra, sparse pilosula ; capite antice, mandibulis, an- 

 tennis, metathorace postice pedibusque rufo-pallidis ; capite 

 striato-ruguloso ; thorace supra longitudinaliter profunde stri- 

 ato ; alis fusco-brunneis. 



Operaria. Nigra ; ore, antermis pedibusque rufis ; capite, tho- 

 race nodisque petioli longitudinaliter striatis. 



Mas. Fusco-niger ; ocellis prominulis ; flagellis pallide rufo- 



