British OUgocene Anfs. 93 



Tribe C A M P N T 1 N I, Forel. 



Genus Camponotus, Mayr. 



Subgenus Colobopsis, Mayr. 



Camjyonotus (^Colohopsis) brodiei, sp. n. 



One specimen appears to me to be a soldier of Colohopsis, 

 on account of the square anterior truncation of its head. The 

 head, thorax, scale, and gaster, three legs, and a part of ono 

 antenna are present. 



Length 4'5 mm.; head, long 1*7 mm. ; breadth in middle 

 of head 1"3 mm., at apex "7 mm. 



Oligocene at Gurnet Bay (Brodie). 



llolotvpe, (D. 2), I. 9551, on same block as an OeGophylla ; 

 in Hrit. Mus. (PI. V. fig. 13). 



Wheeler (1914) described a new genus Dryomyrmex, with 

 two species, from the Baltic amber. At first he regarded 

 them as belonging to the subgenus Colubopsis oi' Camponotus, 

 but he found tliat the diflf'erent structure of the anfennte and 

 frontal carinpe placed them near Aphowyrmex. Such cha- 

 racters as these are unfortunately not visible in specimens 

 imbedded in rock. He points out that the structure of the 

 head etc. shows that the ants lived in cavities of twigs, in 

 oak-galls, or in abandoned insect-galleries in solid wood, like 

 the species of Colohopsis. 



Works referred to. 



Adolph, E. 1880. " Ueber das Flugelgeader des Lasius umbratus, 



Nyl." Verb. Ver. Rheml., xxxvii. pp. 35-53. 

 BaoDiE, P. B. 1895, " Tertiary Fossil Ants in the Isle of Wight." 



' Nature,' lii. p. 570. 

 CoCKERELL, T. D. A. 1915. " British Fossil Insects." Proc. U.S. 



Nat. Mus., xlix. pp. 409-499. 

 DoNiSTHORPE, H. St. J. K. 1915. 'British Ants, their Life-history 



and Classitication.' Plymouth : Breuden & Son, Ltd. 

 Emeby, 0. 1891. " Le Formiche dell' ambra siciliana nel museo 



mineralogico dell' Universita dlBologna." Mem. Ace. Sc. Bologna, 



V. pp. 141-165. 

 Heee, O. 1850. " Die Insektenfauna der Tertiargehilde von Oeningen 



und von Radoboj in Croatien." Denkschr. Schweiz. Ges. Naturw., 



xi. pp. 1-264. 

 West-wood, J. O. 1854. " Contributions to Fossil Entomology." 



Quart. Journ. Geol. Soc. Lond., x. pp. 378-396. 

 Wheeler, W. M. 1914. " The Ants uf the Baltic Amber." Schrift. 



Physik-okonom. Ge.sell. Kimigsberg, Ixv. pp. 1-142. 

 Woodward, II. 1879. ." On the Occurrence of Jiranchipus (or Chiro- 



cep/talus) in a Fossil State, associated witli Eosphteroma and with 



numerous Insect Remains, in the Eocene Freshwater (Bembridge) 



Limestone of Gurnet Bay, Isle of Wight." Quart. Jouru. Geol. 



Soc. Loud., XXXV. pp. ."^42-350. 



