EURYGLOSSA. 15 



middle, on the basal segment, its apical margin, that of the second 

 segment, and all the following segments piceous ; the extreme 

 apical margins of these segments narrowly black ; beneath yellow, 

 with the margins of the segments ferruginous. 



Hab. Champion Bay. 



11. Euryglossa halictiformis. 



Female. Length 2| lines. — Black, with the base of the abdomen 

 obscure reddish brown. The face with a thin griseous pubescence ; 

 the clypeus strongly punctured ; the flagellum fulvous beneath ; the 

 tips of the mandibles ferruginous. Thorax opaque, very closely 

 and finely punctured above ; the metathorax shining ; the tibiae 

 and tarsi pale ferruginous, the former more or less fuscous above ; 

 the scopa on the posterior tibiae white ; wings hyaline and splen- 

 didly iridescent, the nervures and tegulae pale testaceous. Abdo- 

 men oblong-ovate, shining, with three basal segments reddish 

 brown, with their apical margins palest; the segments beneath 

 fringed with long white pubescence. 



Hab. Swan River. 



This species much resembles the European Halictus nitidiuseulus. 



12. Euryglossa villosula. 



Male. Length 3^ lines. — Black ; the head and thorax with long, 

 erect pubescence, the abdomen with yellow maculae ; the flagellum 

 fulvous beneath. The legs yellow, with the coxae black ; wings 

 clear hyaline and splendidly iridescent. Abdomen ovate, with a 

 silky lustre ; the second, third, and fourth segments with a yellow 

 macula at their extreme lateral margins. 



Hab. Swan Eiver. 



13. Euryglossa tricolor. 



Female. Length 3| lines. — Head and thorax black ; base of the 

 abdomen red, the apex blue. The head very closely punctured on 

 the vertex ; the clypeus convex, shining, and with distant punc- 

 tures, the margin with pale ciliae ; the flagellum of the antennae 

 fulvous beneath ; tips of the mandibles rufo-piceous. The meso- 

 thorax and scutellum shining and with fine distant punctures ; the 

 metathorax shining, rounded, and impunctate ; wings hyaline and 

 iridescent, the nervures ferruginous ; the apical joints of the tarsi 

 pale rufo-testaceous. Abdomen with the three basal segments fer- 

 ruginous, with a dark macula in the middle of one or more of the 

 segments, the two apical ones blue. 



Hab. Swan River. 



