Records of Deeft. 281 



Perdita verlesina collaris, suljsp. ii. 



(J . — Head, niesotliorax, and scutelluin yellowish green, 

 tlie nicsotliorax with slight coppery tints; nietathorax hlue- 

 greeii ; U|)per part of front wholly dnil, lowei' part shining ; 

 tlagclhmi bright orange, niarUcd with black above at base ; 

 sides of clyppus, lower border rather broadly, and a median 

 band yellow ; lateral face-marks transverse ; upper border 

 of prothorax, and large spots on tnbercles, light yellow ; 

 midille and hind tarsi dark brown ; second and following 

 abdominal segments with orange bands, deeply incised sub- 

 laterally, tiie middle portion of band on second segment 

 almost obsolete. 



Hub. Rito de los Frijoles, New Mexico, August (Cockerell). 



Tliis resembles /■*. lepach'ulis, Ckll., in the colour of the 

 thor.ix, and seems intermediate between h'jxichidis and 

 verbes'u}(p. It may prove to be a distinct species. P. verbe- 

 si/KPy var. maculata, (Jkll., has (J) yellow middle and hind 

 tarsi, the small joints more or less ferruginous. 



Perdita heliophila, sp. n. 



$ . — Length 8-8*5 mm. 



Like P. n!bipennis, but head, thorax, and abdomen with- 

 out light markings ; front dull. Very like P. verbes'ince, 

 var. niyrior, with which I had confused it, but Lirger, hair 

 of liead and thorax above ochreous, stigma pale orange. 

 The mesothorax is shining yellowish green. 



Hub. Mesilla, New Mexico, three, all at flowers of Heli- 

 anthus leiiticularis, Aug. li and 15 (Cockerell). 



Perhaps a variety of P. albipennis, but the specimens are 

 all alike, and the appearance is very distinctive. 



Perdita croionis undecimalis, subsp. n, 



$ . — No supraclypeal mark; clypeus with two very broad 

 black bars, forming a figure 1 1 ; lateral marks very short, 

 not reaching level of top of cly[)eus, squarely notched on 

 inner side above ; metallic colour of head and thorax 

 green. 



Hub. Between Rowe and the Old Pecos Pueblo, New 

 Mexico, at Howcrs of Crotou, Sept. 4 {JF. P. Cockerell). 



Perdita numerata, Cockerell. 



This was described from a female. A male, which f refer 

 here with confidence, is from Mesilla Park, New Mexico, 



