86 ANERGATES, 
The genus Anergates was discovered by Schenk,! 
who found a small community consisting of males, 
females and workers, which he naturally supposed to 
belong to one species. Mayr, however, pointed out? 
that the workers were in fact workers of Tetramorium 
cespitum ; and it would appear that while in Strongy- 
lognathus the workers are comparatively few, Aner- 
gates differs from all other ants in having no workers 
at all. The males and females live with Tetramorium 
cespitum, and are in several respects very peculiar,— 
for instance, the male is wingless. One might consider 
it rather a case of parasitism than of slavery, but the 
difficulty is that in these mixed nests there are no males, 
females, or young of Tetramoriwm. As to this all ob- 
servers are agreed. It seems quite clear that Aner- 
gates cannot procure its slaves, if such they are, by 
marauding expeditions like those of Polyergus; in the 
first place, because the Anergates are too few, and 
secondly, because they are too weak. The whole ques- 
tion is rendered still more difficult by the fact that 
neither Von Hagens? nor Forel ever found either larve 
or pup of Tetramoriwm in the mixed nests. The com- 
munity consisted of males and females of Anergates, 
accompanied and tended by workers of Tetramorium 
cespitum. The Anergates are absolutely dependent 
' «Die Nassauischen Ameisen-Species,’ Stettin Ent. Zeit. 1853, 
p. 186. 
2 Trop. Formicidae, p. 56. 
® Verh. des Natur. Vereines der Preuss. Rheinlande und West- 
phalcne 1867, p.53. Seealso V. Hagens, Berl. Ent. Zeit. 1867, p. 102. 
