Bees from New Mezxtco. 129 
Perdita zebrata, Cresson. 
Gallinas River at La Cueva, Aug. 6 (W. Porter). 
Var. a &. Small, only 5 mm. long; first abdominal 
segment entirely black above. Two at flowers of Cleome 
serrulata, Las Vegas, July 19 (Porter & Ckil.). 
Spinoliella scitula (Cresson). 
Las Vegas, July 23, at Cleome serrulata, 1 2 (W. Porter). 
Mr. Ashmead (én litt.) states that the following species, all 
described as Calliopsis, belong to his new genus Spinoliella :— 
S. scitula (Cress.), S. australior (Ckll.), S. zebrata (Cress.), 
S. maculata (Smith), and S. Hdwardsii (Cress.). To these 
should apparently be added the following, also described as 
Calliopsis :—S. cincta (Cress.), S interrupta (Prov.), S. quadri- 
lineata (Prov.), S. meliloti (Ckll.), S. scutellaris (Fowler), 
S. visaliensis (Fowler), S. anthidius (Fowler). 
Melecta miranda, Fox. 
Las Vegas, at flowers of Zinnia grandiflora, July 27 (W. 
Porter). 
Var. a. Smaller, about 9 mm. long. Las Vegas, July 9, 
on Spheralcea cuspidata, but not on flowers (Ckill.) ; July 19, 
at flowers of Cleome serrulata (CkiL.). 
Ashmeadiella bucconis (Say). 
Las Vegas, July 24 (W. Porter); July 29 and Aug. 6, at 
flowers of Verbesina encelivides, 2 (Ckil.). 
Ashmeadiella cactorum, Ckll. 
g. Lengthi mm. Las Vegas, Aug. 4, two at flowers of 
Convolvulus arvensis (W. Porter). 
Melissodes agilis, Cresson. 
Las Vegas, July 5 (N. Stern); July 25, at flowers of 
Helianthus annuus, 1 8 (W. Porter); July 31, at Verbesina 
encelioides,1 g (Ckil.); Sapello Caiion, Aug. 31 (W. Porter); 
San Ignacio, Aug. 31 (W. Porter). 
Var.a. ¢. No yellow spot on mandibles. Las Vegas, 
July 17, at Cleome serrulata (A. Garlick); July 26, at 
Verbesina encelioides (Ckll.). 
Melissodes agilis, var. aurigenia (Cresson). 
The males vary in length from 9 to 104mm. Romero- 
Ann. & Mag. N. Hist. Ser. 7. Vol. vii. 9 
