1952] 
Wheeler and Wheeler — Ant Larvae 
123 
show any hairs. She grows rapidly under the care of the 
workers and soon attains a length of about 1,2 mm. In 
the period between attaining this length and that of 2 mm 
there occurs a moulting, which begins at the margins of 
the segments. The hairs that appear first are those which 
fringe the back of the head. A few hours later the hairs 
on the dorsal face of the thorax follow and after these 
gradually the other ones. The erecting hairs lift the skin 
which then cleaves and is licked off by the workers.. . . This 
first moulting happens on the second or third day, occasion- 
ally already on the first. The larva n attains a length of 
2,28 mm. Between this length and 2,37 mm there must 
occur a second moulting” (p. 37). “Spontaneous movement 
and position-reflexes of the larva,” pp. 63-64. Table on p. 
37 : age, length of head, length of larva, head hairs. Table 
on p. 38 : length of male larvae, length of hairs. Figs. 2-4, 
9-21, 29 and 33-36 depict wholly or chiefly external ana- 
tomy ; the remaining figures and most of the text treat in- 
ternal anatomy and histology. 
Myrmica smythiesi dshungarica Ruzsky 
Similar to emeryana except in the following details: 
Simple body hairs longer (0.009-0.09 mm) ; anchor-tipped 
hairs shorter (about 0.18 mm). Head hairs shorter (0.045- 
0.1 mm). Labrum narrowed dorsally; anterior surface of 
each lobe with two or three minute hairs and one or two 
isolated sensilla; posterior surface with four to six isolated 
and a cluster of two or three contiguous sensilla ; the whole 
posterior surface sparsely spinulose, the spinules longer 
and in short subtransverse rows. Hypopharynx sparsely 
spinulose, the spinules longer and in moderately long sub- 
transverse rows. (Material studied: six larvae from 
Siberia) . 
Genus Manica Jurine 
Manica ruhida (Latreille) 
Forel, 1874, p. 388 =1920. p. 265: Les larves “sont rondes 
et epaisses en arriere, longues et efhlees en avant, egalement 
arquees d’avant en arriere.” 
