1905] 
LOVELL AXD COCKERELL.— BEES OE MALNE 
39 
thp: xomadine and ep?:olink bees of southern mainr 
BY J. H. LOVELL AND T. D. A. COCKERELL. 
In southern Maine (Waldoboro, Lincoln County) the Nomadine and Epeoline 
bees are represented by only two genera Xomada and Triepeohis. The species are 
few and individual specimens are taken at rare intervals. The species of No- 
?nada begin flying as early as .\pril 24th, visiting the aments of Salix discolor, 
which with the e.xception of the Mayflower is the first nectariferous plant bloom- 
ing in this locality; and continue on the wing as late as July 30th, when they 
have been taken on the infloresence of Aralia hispida. .\11 of the specimens of 
Triepeohis have been collected in .\ugust on the flowers of the Compositae. 
Nomada. 
The species of Xomada run into local races and species in different parts of 
the country, and the Maine species possess certain peculiarities of their own. Two 
are distinct enough to be treated as new species, though it is not impossible 
that the discovery of intermediates in localities still unexplored for bees may 
eventually cause them to be reduced to subspecific rank. Two others, here called 
varieties, may prove more separable than is here supposed, when larger series have 
been obtained. 
Xomada {Gnat/iias) bell a Cr. 
1863 Nomada hella Cr. 9 $ Proc. Ent. .Soc. Phil. 2 : 287. 
1863 Nomada maculata Cr. 9 $ , Proc. Ent. .Soc. Phila. 2:303 (in part). 
1902 Nomada bella Rob. 9 $ , Ent. News, 13 : 80, no. 3. 
1903 Nomada hella Ckll. 9 $ , Proc. Ac. Nat. Sci. p. 601. 
Variety a of rV. maculata 9 was ba.sed on five specimens from Maine, Conn., 
Penn., and Delaware. The local specimens correspond in every particular to the 
description except that the spots on the fifth segment are obsolete as well as those 
on the fourth. The characters of the males are also similar to those given by Cres- 
son. Length 10 to ii mm.; mandibles bidentate; the largest species in this lo- 
cality. Taken from .\pril 24th to July i ith. Early in the season they are visitors 
to the willows Salix discolor and S. Bebbiana. Male and female specimens of A'. 
bella from Elkhart, Indiana, are the same as the local species except that the 
cream-colored spots on the apical segments are u.sually well developed. 
