Records of Bees. 433 



Austi'odloxys thomasi, sp. n. 



(J. — Length about 7 mm. 



Moderately slender ; head and thorax coarsely and closely 

 punctured, but shining between the punctures, abdomen 

 densely rugoso-punctate. Head and thorax black, with faint 

 suggestions of reddish spots on scutelluni, and a reddish tint 

 on sides of thorax beneath wings ; legs bright ferruginous ; 

 abdomen with the first three segments bright ferruginous, 

 the others black, all with narrow, apical, pale ochreous-tinted 

 hair-bands ; face densely covered with pale ochreous-tinted 

 hair ; antennae slender, rather dark ferruginous ; tubercles, 

 upper border of prothorax, and parts of pleura with appressed 

 pubescence, mesothorax with browner hair, not hiding the 

 surface ; tegulaj ferruginous. Wings hyaline, slightly 

 reddish ; stigma and nervures pale ferruginous. 

 Hah. Argentina {0. Thomas; British Museum). 

 A curious isolated genus, resembling Diox(/s, but struc- 

 turally very distinct. 



Halictus etheridgei, sp. n. 



? . — Length 9*5 mm. 



Black, very robust ; pubescence dull white, abundant on 

 cheeks, sides of thorax, and postscutellum ; vertex, disc of 

 mesothorax, and posterior border of scutellum with black 

 hair; head extremely broad; clypeus shining, with rather 

 widely separated large punctures, and a deep median sulcus 

 which extends upward over supraclypeal area ; mandibles 

 black, reddish at extreme tip ; antennae black, scape very 

 long, flagellum short; front dull and granular; mesothorax 

 shining but quite densely punctured, the punctures large and 

 very minute ; scutellum distinctly bigibbous, with minute 

 punctures and scattered larger ones; metathorax sharply 

 truncate, the basal area poorly defined, with dense, wrinkled, 

 labyrinthiforra rugae all over; mesopleurse finely striate; 

 spurs pallid ; tegulse piceous. Wings dusky ; stigma rather 

 small, dull reddish, nervures fuscous ; second s.m. quadrate, 

 very broad ; first r. n. meeting second t.-c. ; outer r. n. and 

 t.-c. very slender; third s.m. short. Abdomen shining, 

 finely and evenly punctured, including broad apical depressed 

 part of segments ; no hair-bands or patches, but a fine pale 

 pruinosity due to thin hair ; hair surrounding caudal rima 

 dark fuscous ; venter with only short stiff hair, but collecting 

 pollen toward base. 



