ANT LARVAE OF FOUR TRIBES: 
SECOND SUPPLEMENT 
(HYMENOPTERA: FORMICIDAE: MYRMICINAE)* 
By George C. Wheeler and Jeanette Wheeler 
Laboratory of Desert Biology 
Desert Research Institute 
University of Nevada System 
Reno, Nevada 89507 
Subsequent to the publication of our first supplement on the larvae 
of the subfamily Myrmicinae (1960a) 1 we have received from other 
myrmecologists so much additional material that it has become neces- 
sary to publish additional supplements. 
Tribe Leptothoracini 
Genus Macromischa Roger 
Machromischa subditivci Wheeler 
Creighton 1965 — Life cycle: egg 30 days, larva 2 3 days, pupa 
19 days. 
Genus Leptothorax Mayr 2 
Kempf 1959: 393 — “The morphological distinctness of the im- 
aginal stages and the distribution of the species may even suggest to 
accord Nesomyrmex full generic status. The larvae, however, are 
quite close to the holarctic subgenus Leptothorax s. str., according 
to G. C. & J. Wheeler (1955), who studied those of echinatinodis’ 1 
Leptothorax carinatus Cole 
semipupa: Length (through spiracles) about 2.2 mm. Profile 
probably similar to L. amhiguus (1955: 22), otherwise differing in 
the following details. Body hairs (1) about 0.006 mm long; (2) 
0.006-0.087 mm long; (3) about 0.14 mm long, four on the dorsum 
of each AI-AIII. Cranium transversely subelliptical. Head hairs 
0.012-0.03 mm long, simple or bifid. Ventral border of each lobe of 
labrum with one isolated and three contiguous sensilla and a few 
minute spinules. Each labial palp a cluster of five sensilla. (Mate- 
*Manuscript received by the editor January 30, 1973 
To save space we cite our own papers by year and page; the complete 
references are in Literature Cited. 
2 In 1950, M. R. Smith changed the well established subgeneric names 
Leptothorax and Mychothorax to Myrafant and Leptothorax respectively. 
Could more confusion be generated in less than two pages? The established 
names should have been conserved. We refuse to accept these changes. 
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