1907] 
LOVELL A\D COCKERELL — SPHECODIDAE 
103 
margin distinctly clouded with red. The abdomen is very finely and rather sjiarsely 
punctured all over. 
Sphecodes l.\utx;.s n. sp. 
9. — Length ju.st over 9 nini. Head and thorax hlaek; abdomen red, of a 
rather light tint, long and nearly parallel-sided, with the apical segment black. 
Wings hyaline basally, the apical half strongly smoky, with a dilute blackish, but not 
at all reddish or yellowish tint. Face covered with white hair. INIesotliorax s|)arsely 
punctured, shining; area of metathorax strongly, irregularly ridged with no well- 
defined margin. Abdomen finely ])unctured, sparsely on basal segment, 2nd and 
following segments punctured all over. 
One specimen on S])iraea salieifolia, August 4. 
Sphecodes per.similis n. sp. 
9. — Length 9-10 mm. Head and thorax black; abdomen red of a bright 
chestnut tint, of normal shape, apical segment red. Wings very strongly reddened. 
Face with much white hair. Mesothorax densely and coarsely punctured; area of 
metathorax irregularly subcancellate. Abdominal segments 1 and 2 nearly im- 
])unctate, or with a few scattered ])unctures, basal part of apical segments with small 
|)unctures. 
Two specimens on Umbelliferous flowers, .July 14 and 19. 
Sphecodes ob,scur.\ns n. sp. 
9. — I.ength about S4 mm. Head and thorax black; abdomen dark red, the 
apical segment black, and the penultimate suffused with blackish. Wings very 
strongly reddish. I^'ace with little, hair. Mesothorax dull (probably due to moisture 
in cyanide jar), with sparse rather weak j)unetures; area of metathorax strongly 
reticulated, not well-defined. First segment impunctate, segments 2-4 with minute 
punctures only on the basal third. 
One specimen on Aralia his])ida, which blooms here in .July. Two other speci- 
mens, also taken on Aralia hispida, July 7 and 16, resemble S. obscumns, but differ 
in several particulars. 
In Can. Ent. 36: 232, 1904, there are described from Washington State a similar 
group of bees closely allied to S. dichrous, one of which (S. arvensiformit Ckll.) 
it is noteworthy has the wings dark and very yellow. .\ comparison of the diiferential 
characters of the four Maine species is as follows; 
