Ants from British Guiana. 377 



Appendix. 



The following species liave previously been collected in 

 British Guiana, and identified by tlie Imperial Bureau of 

 Entomology : — 



Paroponera clavafa, F. 



" A fairly common species. The local name is ' Muniri.' 

 Formicarium observed on two occasions at the base of 

 young trees. Tiie soil is carefully cleared away from around 

 the base of the trunk to a considerable depth, and ti)is serves 

 as the means of communication to the nest. It is only 

 necessary slightly to tap the trunk of the tree, when the ants 

 swarm out making the stridulating noise common to the 

 species. They soon return to tiie nest, however. The sting 

 as exceedingly painful, and will bring on fever in a susceptible 

 individual." 



Odontomachus hamatoda, L. 



0. ajffinis, Guer. 



Ec'iion burcheUi, Westw. 



E. coecum, Ltr. 



Crypiocerus clypeatus, Oliv. 



" A fairly common species. The formicary has once been 

 observed beneath the loose decaying bark of a tree ; the 

 community consisted of about 1000 individuals.'^ 



Atta fervens, Say. 



" Tills species seems occasionally to occur in the interior 

 districts ; it has never been taken near the coast." 



Camponoius maculaius, F., subsp. picipes, Oliv. 



Note on Claviger testaceus. 



Donisthorpe has recently (Ent. Rec. xxviii. 2, p. 34, 1916) 

 commented on my experiments with this myrmecophijous 

 beetle and the queens of Lasius niger, flavus, and umbratus 

 (Ent. Eec. xxvii. 9, p. 205, 1915). My remarks, owing to 

 their brevity, have evidently given rise to a misapprehension. 

 The beetles, as I have previously observed myself, sometimes 

 rest on the queens in nests of L. favus, their normal host. 



