10 
Psyche 
[March 
ANTS OF NANTUCKET ISLAND, MASS. 
By William Morton Wheeler, 
Bussey Institution, Harvard University. 
After making an intensive study of the insect fauna of Nan- 
tucket Island, Mr. C. W. Johnson has turned over to me for 
identification all the ants which he was able to collect. There 
are seventeen different forms, all of which, with the exception of 
Monomorium minimum , are common on the New England main- 
land. The absence of certain conspicuous species, especially of 
the genera Aphsenogaster and Prenolepis, is worthy of note. 
1. Ponera coarctata Latr. subsp. pennsylvanica Emery. A 
single male. 
2. Myrmica brevinodis Emery var. canadensis Wheeler. 
Workers, females and males. 
3. Myrmica scabrinodis Nly. var. sabuleti Emery — 
Workers, females and males. 
4. Monomorium minimum Buckley. — A single winged 
female. This is a southern species which has entered New 
England along the coast. It has been taken near New Haven, 
Conn., at Providence, R. I. and at Woods Hole, Mass. The 
only inland record is Wellesley, Mass. (A. P. Morse). 
5. Crematogasier ( Acrocoelia ) lineolata Say. — Workers, fe- 
males and males. 
6. Tapinoma sessile Say.— Workers and a dealated female. 
7. Dolichoderus ( Hypoclinea ) plagiatus Mayr var. inorna- 
tus Wheeler. — A worker and a winged female. 
8. Lasius niger L. subsp. alienus Forst. var. americanus 
Emery. — Workers and females. 
9. Lasius ( Chihonolasius ) brevicornis Emery — Workers, 
females and males. 
10. Formica truncicola Nyl. subsp. obscurivenlris Mayr. var. 
gymnomma Wheeler. — Single worker, female and male specimens. 
11. Formica difficilis Emery var. consocians Wheeler. — 
Workers. This ant is a temporary social parasite of F. schaufussi 
var. incerta. 
