yo Bulletin of Laboratories of Denison University [Voi. xi. 
Anthopohrula.'-^' 
About 6^ mm. long, short and compact, like a small Diadasia or Po- 
dalirius, pubescence pale mouse-color, covering most of abdomen 
with a dense felt. Flagellum fulvous. (Mesilla Valley.) 
Centris. 
Males. 
. compactula, Ckll. 
Front broad. 
. I 
Front narrow. 
3 
1. Length over 14 mm., scape without yellow, . . 2 
Length under 14 mm., scape yellow in front, . rhodopus, Ckll. 
2. Very large, 2i mm. long, pubescence of thorax mouse-col- 
or, abdomen with two more or less distinct reddish 
bands, ...... niorsei, Ckll. 
Length 16 mm., pubescence of thorax ochraceous. 
. . . . cctsalpinice^ Ckll. 
3. Abdomen with narrow hair-bands ; clypeus yellowish- 
white, .... hoff 77 tanseggiiZ, Ckll. 
Abdomen without hair-bands; clypeus lemon yellow, 
. . . . . lanosa, Cress. 
Females. 
Clypeus crimson, ....... i 
Clypeus yellow or orange, the upper border more or less black, . . 2 
1. Length over 14 mm.; legs black, . .. ccBsalpinia., Ckll. 
Length under 14 mm.; femora and tibiae rufous, . rhodopus^ Ckll. 
2. Second abdominal segment pubescent, . . lanosa, Cress. 
Second abdominal segment bare, . , hoffmanseggice , Ckll. 
Note. — C. morsel sNz.% taken at the end of June ; all the others can be found 
at flowers of Ccesalpinia {Hoffmanseggia) falcaria in May. All occur in the Me- 
silla Valley. 
Ox^.A. 
Wings on apical half blue-black ; legs reddish ; abdomen black, on 
the sides, beneath, and sixth or seventh dorsal segments with fulv- 
ous pubescence. Length 22 mm. (Mesilla Valley.) . gloriosa, Fox. 
Note . — This was described as a Megacillssa, but it differs in the venation 
from that genus. I had referred it to Oxaea, and Mr. Friese, to whom I sent a 
specimen, places it in that genus. 
Megacilissa. 
Wings not or but slightly fuscous apically ; abdomen dorsally black, 
with the apical margins of segments 2 to 4 with white pubescence. 
(El Rito.) ...... yarrowl, Cress. 
•^'Since this was sent to press I have ascertained that Anthophorula is in re- 
ality an Exomalopsis with two marginal cells. 
