APIARI.*:. 



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leu, and two of them a small larva. On the 29111 of June si\ 

 full-grown larvffi were exhumed, and one about half-grown. 

 About the first of August the 

 hirva transforms to a pupa, and 

 during the last week of this month 

 the mature bees appear. 



In Ilalictus, which is a geiuis 

 of great extent, the head is trans- 

 verse, and flatfish ; the mouth- 

 parts are of moderate length, the 

 tongue being very acute, with 

 acute paraglosste half the length 

 of the tongue, while the labial 

 palpi are not quite so long as 

 the paraglossiB. There are three 

 subcostal cells in the wings, with 

 the rudiments of a fourth often 

 present, and the second cell is 

 squarish. The abdomen is ob- 

 long ovate, with a longitudinal 

 linear furrow on the tip in the 

 female. In the males the body 

 is longer and the antennie more 

 filiform and slender than usual in 

 this family. 



The larvte are longer, and with 

 more acutely convex segments 

 than in Andrena. The pupa3 

 differ much as the adult l)ees from 

 Andrena, especially in the shorter 

 mouth-parts. 



Halidus 2')ciraUeh(s Say excavates cells almost exactly like 

 those of Andrena; but since the bee is smaller, the holes are 

 smaller, though as deep. JMr. Emerton found one nest, in ;i 

 path, a foot in depth. Another nest, discovered September *Jth. 

 was about six inches deep. The cells are in form like those of 

 Andrena, and like them are glazed within. The egg is rather 

 slender and much curved; in form it is long, cyliiidrical, ob- 

 tuse at one end, and much smaller at the other. The ihr\a 



10 



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