THE CANADIAN ENTOMOLOGIST. 



SOME NEW SPECIES OF HALICTUS. 



BY J. C. CRAWFORD, DALLAS, TEXAS. 



In the following descriptions the term sericeous or sericeously 

 roughened is applied to the silky lustre induced by the minute striation or 

 roughening of the surface. 



Halictus Fedorensis, n. sp., $. — Black, head and thorax closely, 

 finely punctate, clothed with rather abundant whitish pubescence ; facial 

 quadrangle longer than broad ; clypeus shiny, sparsely punctured ; 

 antennae obscurely ferruginous beneath toward apex; mesothorax 

 sericeously roughened, median and parapsidal grooves obscure; base of 

 metathorax sericeously roughened, finely striate, the striae not reaching 

 apex medially ; wings hyaline, nervures and stigma light testaceous ; legs 

 obscurely ferruginous, hind inner spur with four very oblique teeth ; 

 abdomen sparsely pubescent, base of segments two and three with lateral 

 hair patches ; segments closely, finely punctate ; broad apical margins 

 testaceous. 



Length, 7 mm. - 



'li'wo specimens from Fedor, Texas, June i, 1898; Nov. 11, 1897. 

 Rev. G. Birkmann collector. 



In appearance most like araiatus, aberrans, galpinsiie, but differs 

 from all of them by the closely-punctate first abdominal segment. 



Halictus Robertsoni, n. sp., $ . — Black, clothed with white pubes- 

 cence, and appearing powdery ; form narrow ; head and thorax very 

 closely, finely punctured, clypeus sparsely so ; facial quadrangle longer 

 than broad ; flagellum obscurely ferruginous beneath ; mesothorax serice- 

 ously roughened ; disc of scutellum almost impunctate ; truncation of 

 metathorax heart-shaped, surrounded by a salient rim ; from the upper 

 lateral edges of this carina salient carinas run forward, making a triangular 

 enclosure on the base of the metathorax ; enclosure very shiny, rather 

 coarsely irregularly rugose ; all of metathorax except enclosure covered 

 with close pubescence ; tegulae large, dark, with a light centre ; wings 

 smoky, nervures and stigma dark brown ; legs black, hind inner spur with 

 about six teeth, the basal three long ; abdomen shiny, with short, rather 

 thin whitish pubescence ; segments, exce})t apical margins, closely, finely 

 punctured ; bases of segments two to four with bands of white appressed 



pubescence, showing only as lateral hair patches if the abdomen is 

 contracted. 



Length, about 7 mm. 



Type, Victoria, Texas, Febr. 24^ 1904. Crawford collector. 



January, 1906, 



