THE CANADIAN ENTOMOLOGIST. 235 



Ten male specimens : Wawawai, Wash (C. V. Piper, coll.); East 

 Wash. 



Halictus Tiiusi. n. sp. — - J . Black, head shining, vertex, clypeus 

 and supraciypeal space with sparse and large punctures ; sides of face 

 with close, large, oblique punctures or depressions ; mandibles black ; 

 antenna? dark, flagellum slightly brownish ; head with sparse long 

 pubescence, on cheeks and vertex slightly tinged with ochraceous ; 

 mesothorax with a bluish reflection, smooth with sparse large shallow 

 punctures, scutellum with similar but smaller punctures ; tegulse large, 

 shining, punctured, dark, with a lighter centre and broad testaceous 

 margin ; base of metathorax enclosed, closely, rather finely, longitudinally 

 striate ; wings hyaline, tinged with yellowish ; nervures and stigma 

 testaceous; thorax with long griseous hair slightly tinged with ochraceous; 

 legs black, apical joints of tarsi ferruginous ; pubescence of legs slightly 

 ochraceous ; of tarsi decidedly so ; inner spur of hind tibiae with many 

 short blunt teeth; abdomen dull, smooth, with a very few shallow punctures, 

 almost imperceptible ; apical half of segments depressed ; basal margins 

 of segments 2-4 with a broad thin band of appressed white pubescence ; 

 last segment almost covered with this pubescence. Length, about 

 10 mm. 



Type from San Diego, Calif. 



Dedicated to Prof. Titus, from whom it was received. 



This species is close to H. trizonatus, Cress., in general appearance, 

 but is slightly more robust, the abdominal bands thinner and more 

 griseous, the thorax less densely punctured, the abdomen with fewer 

 punctures, etc. 



Halictus fulgidus, n. sp. — 9 . Black, shining, head very closely 

 and coarsely punctured above the level of the antennae, more sparsely so 

 below ; clypeus and supraciypeal space sparsely punctured, the former 

 fringed with golden hairs ; mandibles black, rufous towards tips ; 

 antennae black, toward tip dark reddish brown ; pubescence of head 

 griseous and rather scanty; mesothorax finely tessellate, densely punctured 

 along the edges, more sparsely so on the disc ; pubescence long, thin and 

 griseous, denser on pleura ; metathorax shining black, coarsely rugose, 

 truncation with a few coarse rugae, but very finely striate all over ; tegulse 

 shining black, externally testaceous ; wings hyaline, nervures and 

 stigma testaceous ; legs black, apical joints of tarsi ferruginous, basal 

 joints more or less so ; pubescence of legs griseous, slightly tinged with 



