372 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



ants. The pupae of the Myrmicidce are naked, unlike 

 those of most of the Formicidce, which are in cocoons. 

 The nests of the genus Myrmica harbour one or two 

 myrmecophilous Coleoptera, and those of Tajnnoma a 

 single rare species. 

 Leptothorax, Mayr. 

 L. acervorum, Fab. — Delamere Forest, E.C.T. Found 

 in nest of F. fusca on Bidston Hill by Mr. Henry 

 Burns. This is an unusual habitat, as it 

 generally forms colonies in the ground, under 

 bark of trees, in dead wood or bramble stems. 

 Myrmica, Latr. 

 M. rubra, Linn. 



race rugiiiodis, Nyl. — Abundant near Man- 

 chester, B.C. 

 race Icevinodis, Nyl. — Hoylake and West Kirby ; 

 Bowden, B.C.; Chester and Delamere, E.C.T. 

 race scabrinodis, Nyl. — Common everywhere, 

 race lobicornis, Nyl. — This rare variety has been 

 taken near Bowden, B.C. 

 Monomorium Pharaonis, Linn. — Diplbrhoptrum domesti- 

 cum, Sni. — This introduced species is now often 

 a pest in houses in our towns. 



FOSSOEES. 



Solitary insects, consisting of male and female only, 

 and without workers, as found in the previous social 

 division. They comprise certain Ants and the majority 

 of our species of TVasps. They feed on honey gathered 

 from flowers in the imago state, but the larvse are carnivor- 

 ous. Though solitary in habit (i.e., the female constructs 

 a single nest for herself, instead of the common one, con- 

 taining several hundred individuals, of the social ants and 

 wasps), the Fossores often form large colonies of many 



