1988] 
Wheeler & Wheeler — Leptanilla japonica 
189 
lacking on some somites of some larvae. 
Even if one does determine the extent of the prothorax and does 
locate the 4th abdominal somite, he still has to find the hemolymph 
feeding pores. That is easy in revelierei because of the heavily 
sclerotized rim. This rim is lacking in swani and japonica. In fact, in 
the latter two we are unable to locate the pores in our preserved 
specimens. 
Summary 
The larva of Leptanilla japonica is described and illustrated. The 
structures on abdominal somite IV, which have heretofore been 
regarded as the only spiracles, have been shown by Masuko to be 
hemolymph feeding pores. The larvae of the genus are characterized 
on the basis of the four known species. 
Literature Cited 
Masuko, K. Larval hemolymph feeding in the ant Leptanilla japonica: the second 
type with a larval specialized duct organ. (In preparation.) 
Wheeler, G. C., and Jeanette Wheeler. 1965. The ant larvae of the subfamily 
Leptanillinae. Psyche 72: 24-34. 
