.2 1919 



>^ AND '^ 



JOURNAL OF VARIATION. 



Vol. X^Xl. No. 1. January 15th, 1919. 



Myrmecophilous Notes for 1918. 



By b. DONISTHORPE, F.Z.S., F.E.S. 



Mr. A. W. Pickai'd-Cambridge having asked me to overhaul and 

 name the ants belonging to his father, the late Rev. 0. Pickard- 

 Cambridge, I have now done so, and propose to publish a list of the 

 same. Very few of them have locality labels attached, but Mr. Cam- 

 bridge tells me that it may be taken for granted that all those without 

 were taken in the Bloxworth district. 



Myrmecina grammicola Latr. 2 and ^ . 



Monomorinm pharaonis Ij. ? ''Salisbury." New County record. 



MyDirica laevinodis Nyl. <? <? , 2 ? , and ^ ^ . 



Myrwica ruqlnodis Nyl. ^ <? , ? 2 > and ^ ^ . New County re- 

 cord. 1 2 labelled " Blox. Heath, Sept. 1885." 



Myrmica sidcinodis Nyl. 3^ <y , 2 2 , and ^ ^ . " Bloxworth 

 Heath." Among these I detected an interesting ergatandromorph, 

 which Mr. Cambridge has generously given to me. It may be de- 

 scribed as follows : — 



Head reddish broivn, mandibles yellow, antennce and cheeks red, thorax light 

 yelloicish red, petiole and post-petiole red, gaster partly red, partly dark broivn, 

 legs red. 



Whole body except gaster mostly normal g . Head less rugose than in normal 

 5 , thorax with rugose striae not longitudinal, but slanting on prothorax, and 

 transverse and rounded on mesothorax. Epinotal spines slightly shorter than ui 

 normal g . Gaster deformed looking, triangular ; 1st segment divided into three 

 parts, the section on right side rounded, blackish brown, very shining, and covered 

 with hairs, the centre section only visible on dorsal surface, small, light brown and 

 glabrous, the l^ft section lighter to darker brown with a few hairs, continued over 

 most of the ventral surface where it meets the section from right side. The next 

 three segments on dorsal surface are light brown and shining, with rows of hairs 

 near apex, and two small parts of the ventral segments on left side. The 4th seg- 

 ment appears to form a continuous ring, which is slightly split at apex, and from 

 it a bit of a 5th segment is visible. One stipes, the sagittae, and a sting are 

 extruded from the latter segment. Long. .5.5mm. 



Myrmica scabrinodis Nyl. <? J , 2 2 ? ^ ^ • 



Myrnnca scabrinodis Nyl. var. sabideti Mein. ^ ^ . New County 

 record. 



Stenamma ivestwoodi West. 4 ^ ^ . 

 Leptnthorax acervoritm L. <3^ c? , 2 2 > and ^ ^ . 

 Leptothorax tuberam F. 2 ; and ^ ^ " Portland." 

 Tetrarnorium caespitum L. ? ^ ; are labelled " Blox. Heath." 

 January 17th, 1919. 



