Bets from Ntw Mexico. 129 



Perdita zebrata, Cresson, 



Gallinas River at L;i Cuova, Aug, {IK Porter). 



V'ar. a. (T . Small, only 5 mm. long; first abdominal 

 segment entirely blaek above. Two at Howers of Cleome 

 serrulata, Las Vegas, July 19 (Porter ,^ Ckll.). 



Sjjifiol'u'l/d sclluhi (Cresson). 



Las Vegas, July 2.'5, at Cleome serrulata, 1 $ {IV. Porter). 

 Mr. Aslimead {in lilt.) states that tlie following species, all 

 described as Calliopsis, belong to his new genus SpinuUella : — 

 5. scitula (Cress.), S. anstralior (Ckll.), S. zebrata (Cress.), 

 S. Diarulata (Smith), and S. Edtmrdsii (Cress.). To these 

 should ap[)arently be added the following, also described as 

 Callio/jsis: — S. cincta (Cress.), S interriipta (Prov.), S. quudri- 

 lineata (Prov.), S. me.llloti (Ckll.), S. scutellaris (Fowler), 

 S. visaliensis (Fowler), S. antlddius (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 Sphceralcea cuspidata, but not on Howers {Ckll.) ; July 19, 

 at flowers of Cleome serrulata [Ckll.). 



Asltmeadiella bucconis (Say). 



Las Vegas, July 24; {W. Porter) ; July 29 and Aug. 5, at 

 flowers of Verbesina enceliuides, ? {Ckll.). 



Ashmeadiella cactorum, Ckll. 



(J. Length 5 mm. Las Vegas, Aug. 4, two at flowers of 

 Convolvulus arveusis ( M . Porter). 



Melissodes ayilis, Cresson. 



Las Vegas, July 5 {N. Stern) ; July 25, at flowers of 

 Heliunthus annuus, 1 (^ {JV. Porter); July 31, at Verbesina 

 enceliuides, 1 <^ {Ckll.); Sapollo Canon, Aug. 31 {fF. Porter); 

 San Ignacio, Aug. 31 (IF. 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 10^ mm. Romero- 

 Ann.d: Mag. y.llist. Ser. 7. Vol. vii. y 



