230 SEVENTEENTH Report STATE ENTOMOLOGIST OF MINNESOTA—1918 
habits, their legs are not modified to carry pollen. These bees appear 
to live on the best of terms with their hosts, and their larvae are fed 
with the pollen and honey stored up by the latter. 
Minnesota forms: Epeolus scutellaris Say, Nomada sp., Gnathias 
sp. Triepeolus bardus Cress. (see col. plate 2), Centrias sp. Holono- 
mada sp. Triepeolus is found in late summer on the Compositae. 
Nomada is an early flier visiting aments of willow. 
EUCERIDAE 
Same as preceding family as to apical dorsal abdominal segment of males and 
females; also as to clypeus, mandibles and labrum, tongue, and first and second joints 
of labial palpi. But first portion of sub-discoidal vein distinctly longer than third 
portion, and marginal cell bent away from costal vein; vertex crested. 
Often densely hairy, of moderate size. Xenoglossa is one of the 
chief agents in pollenizing the flowers of pumpkins, squashes, melons 
and cucumbers. 
Cemolobus ipomoeae Rob. visits flowers of the morning glory. 
Melissodes (Anthedon) compta Cress. is illustrated in Howard’s In- 
sect Book, Pl. III and Melissodes (M.) rustica Say in Fig. 12 pl. IV, 
op. cit. Tetralonia atriventris Sm. is illustrated in Fig. 19, pl. II, op. 
cit. 
Minnesota species: Melissodes bimaculata LeP., M. (M.) rustica 
Say, M. nivea Rob., M. perplexa Cress., Tetralonia speciosa, Melis- 
sodes sp.. (see col. plate 3), Nenoglossa (Peponapis) pruinosa Say. 
We have taken Melissodes on aster in this state in Aug. and Sept. in 
Itasca, Martin and St. Louis counties. 
EMPHORIDAE 
Same as in Euceridae but vertex not crested. 
There is no representative of this family in the Minnesota collec- 
tion. Melitoma taurea Say is figured in Howard’s Insect Book, PI. 
III, fig. 7, Emphor bombiformis Cress. visits flowers of morning glory 
(Ipomoea) and marshmallow (Hibiscus). 
ANTHOPHORIDAE 
Same as Emphoridae, but marginal cell not bent away from costal vein. 
These solitary bees are, in size, between a honey bee and bum- 
ble bee. They are for the most part hairy and many burrow in the 
soil, forming cells in underground tunnels and laying their eggs there- 
in upon a mixture of pollen and honey. The cell is then closed. Some 
