356 T. D. A. COCKERELL. 



Halictus maculosus Smith f. 



Large, black, the white laterobasal hair patches of abdomen very 

 distinct; legs mainly bright red ; third s. m. much shorter than first. 



Halictus n. sp. Spinola. 



A real Halictus, but with the eyes unusually emarginate ; third 

 s. m. very large; its outer side strongly angled ; wings very yellow 

 basally. Has the appearance of the group of coriaceus. 



Halictus n. sp. Spinola $>• 



Smallish, black, mesothorax faintly greenish ; laterobasal hair- 

 patches of abdomen very distinct ; stigma large, dark brown. 



Halictus n. sp. Spinola £>. 



Small, shining black; second s. m. strongly narrowed above; 

 stigma large, dark brown ; the mesothorax shining, with scattered 

 punctures. 



H. chloris, Spinola, and H nigromarg hiatus, Spinola, both belong 

 to Augochlora. 



Vachal (Misc. Ent., 1903-1904) has recently described the fol- 

 lowing Halictines from Chile, placing them all in the genus Halic- 

 tus : — Agapostemou pissisi (Vach.),* Paragapostemon nigrocceruleus 

 {Halictus nigrocceruleus, Spinola), P. dolator (Vach.), P. purpur- 

 issus (Vach.), P. scitulus (Vach.), P. cuprellus (Vach.), P. iodurus 

 (Vach.), P. atrinodis (Vach.), P. dilutior (Vach.), Augochlora pro- 

 thysteres (Vach.), A. notialis (Vach.). 



AUGOCHLORA Smith. 



Mr. Vachal divides this genus (which he regards as part of 



Halictus) into three groups: 



Hind margin? of first two abdominal segments ciliate with short hairs; hind spur 



of 9 pectinate or spined Vibeissati. 



Hind margins of first two abdominal segments not ciliate. 



Hind spur pectinate or spined Sericei. 



Hind spur not pectinate or spined Oxystoglossi. 



The sections Vibrissati and Sericei have constituted the subgenus 

 Auqochloropsis. Oxystoglossi has been regarded as typical Augo- 

 chlora, but it includes the genus Oxystoglossa, Smith. Smith's 

 Augochlora included all three sections, but his first species {A. diver- 

 sipennis) belongs to Vibrissati. Both Augochlora and Oxystoglossa, 



* The Chilian locality of this is doubtful. 



