1980] Buschinger, Francoeur, & Fischer —Leptothorax 
5 
Adults of 6 samples were dissected immediately after collecting: 
No. 1: A single intermorph, with 3 ocelli, apparently alone in a small 
chamber in the host nest. Spermatheca filled with sperm, 6 ovarioles 
of about the length of the gaster, developing eggs. Presumably a 
queen independently founding a new colony. 
No. 2: Colony contains a dealate, normal queen, who was observed to 
lay eggs. Since the colony is still alive, only a few specimens were 
dissected immediately after collecting: 4 callow intermorphs had only 
very short ovarioles (4, 5, 6 and 7 respectively), the receptacula were 
present, but empty. 3 workers (without ocelli) had 5 (2 $ ), and 6(1$) 
short ovarioles, receptacula could not be found. This is different from 
Holliday’s experiences: she found receptacula even in “microergates”. 
However, the number of workers without receptaculum was low in 
our material as well (see below). 
No. 6: One intermorph with dark spots at the normal position of the 
wings (between ergatoid female and triocellate $ of Holliday 1903), 
with 6 long ovarioles, corpora lutea and the spermatheca filled with 
sperm — a functional queen. One $ with 5 ovarioles and without 
spermatheca. Presumably a young colony. 
No. 9: One workerlike intermorph with two tiny ocelli, but 6 long 
ovarioles, corpora lutea, and filled spermatheca —the functional 
queen. 4 intermorphs with empty receptacula, 3 ergatomorphs 
without spermathecae, and one ergatomorph with an empty recep¬ 
taculum, but with 6 ovarioles of about the length of the gaster, and a 
few tiny corpora lutea (egg-laying worker). 
No. 11: One intermorph with 3 ocelli, the functional queen; 4 
intermorphs and one ergatomorph with filled receptacula, but not 
egg-laying; one intermorph (callow) with empty receptaculum, 10 
ergatomorphs with empty receptacula, one ergatomorph with empty 
receptaculum, but with corpora lutea; 3 workers without receptacula. 
Again a rather complete colony. 
No. 12: One intermorph with 3 ocelli, the functional queen; 3 
intermorphs inseminated but not egg-laying; one intermorph with 
empty spermatheca; 7 ergatomorphs with empty receptacula, one 
ergatomorph with empty spermatheca, but with corpora lutea; 2 
workers without spermathecae. Complete colony. 
It is striking that, notwithstanding all the uncertainties which are 
due to the difficult collecting of complete colonies, most of our 
samples (No. 2, 6, 9, 11, 12) contained one fully fertile queen, and 
often a number of inseminated, but sterile individuals. The latter are 
