28 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 
The Bees of Southern California. VIII.* 
BY T. D. A. COCKERELL, 
Synhalonia fowleri; n. sp. (belfragei, subsp ?) 
Female, length 11 to 12 mm., allied to S. belfragei (Cresson), 
but differing thus; rather smaller, head broader in proportion 
to its length, pygidial plate narrower, clypeus with a more 
or less distinct raised line down the middle. This may be 
nothing but a geographical race of 8. belfragei (which is known 
trom Texas and Illinois), but it has rather a distinct aspect. 
I suppose that the insect collected by Knuth at Berkeley, Cal., 
and recorded by Alfken as belfragei, was fowleri. S. califor- 
nica, Fowler (not of Cresson) is evidently S. fowleri; it is too 
small to be 8. edwardsii. ! 
Six from Los Angeles, one from Lancaster, Cal., collected by 
Dr. Davidson. 
Xenoglossa davidsoni, n. sp. 
Female, like that of X. angelica, CkIl., but differing thus; 
tegule very dark brown (ferruginous in angelica), small joints 
of tarsi black, abdomen black (apical half of segments 2 to 4 
red in angelica), the apical halves of segments 3 and 4 with 
a silvery pruinosity (well-marked only on 4), the bases of 
those segments with very fine yellowish tomentum, the fifth 
and apical segments with shining golden-reddish hair, the sec- 
ond segment with no conspicuous hair, the ventral bands of 
suberect hair (all orange in angelica) very pale yellowish ex- 
cept the subapical one, which is orange, the pygidial plate less 
pointed, much broader at end. 
One from Los Angeles, (Dr. Davidson). First recognized 
as new by Mr. Cresson, but he writes me that he does not 
care to describe it. It may possibly be an extreme variety of 
X. angelica, but it seems sufficiently distinct. The females of 
XX. davidsoni and angelica both have the mandibles entire at 
apex, not bidentate as Robertson describes for Peponapis 
pruinosa. 
Melissodes agilis. Cresson. 
The males sent by Dr. Davidson show a good deal of varia- 
tion, and may represent two or three distinet races, possibly 
species. At present, however, I do not feel able to separate 
them specifically from the agilis of the Rocky Mountain region. 
The following table indicates the variations: 
*Continued from Page 13, Vol. IV, No. 1, January, 1905. 
