336 THE CANADIAN ENTOMOLOGIST. 



supra-clypeal and dog's-ear marks, a line in front of scape of aaicnnt«, spot 

 on tubercles, knees, front tibice except black line on rear, base and apex 

 of intermediate and rear tibiae, and all tarsi, lemon-yellow ; face with 

 sparse large punctures as high as antenna, above this closely and more 

 finely punctured ; vertex and head behind eyes with sparse, large and deep 

 punctures ; pubescence of head and thorax sparse, whitish ; mesothorax 

 with rather large but not close punctures ; scutelluni with coarse 

 punctures ; postscutellum closely and more finely punctured ; base of 

 metathorax enclosed, longitudinally striate ; truncation and sides dull 

 from fine, close punctures ; sides of mesothorax shiny, and with coarser 

 and sparser punctures ; tegulae testaceous ; wings dusky, darker apically ; 

 base of abdominal segment smooth, beyond with rather close punctures ; 

 apices of segments depressed and transversely striatulate ; segments 

 beyond first closely and finely punctured, abdominal segments clothed 

 with very short yeliowish pubescence, visible only in certain lights. 



^ . — Similar, but lacking yellow marks of male ; mesothorax more 

 finely and sparsely punctured; punctures of truncation of metathorax of 

 pleura finer ; first abdominal segment almost impunctate ; abdomen 

 lacking the pubescence of $ ; anal fringe reddish ; scopa whitish. 



Lincoln and West Point, Nebr.: on Solidago rigida and 6". 

 AIissourie?isis, and also GriJidelia sqtiarrosa. Aug. 24 to Sept. 11. 

 20 (^ 's, 8 ^ 's. Sexes in copula. 



Andrena Alicice, Robt. — A single specimen on Bidens chrysanthetn- 

 oides, Sept 19, 1903, at West Point. New to Nebr. 



Our other fall And}-enas?i\Q pulchella, /ic/iant/ii, solidjginis, nubecula 

 and two a[)parently undescribed species. 



Sphecodogastra Texana, Cress. — Lincoln, Sept.; on Grindelia ; West 

 Point, Oct. 



Halidus aberrans, n. sp. — 9 • Black, shiny, with thin pubescence ; 

 head finely and closely punctured ; thorax rather sparsely and finely 

 punctured ; clypeus sparsely punctured ; antennte dark ; tegula; black, 

 externally honey coloured ; wings slightly milky and nervures honey 

 colour ; legs black, with a very thin loose scopa of silvery-white hairs ; 

 base of metathorax finely irregularly wrinkled ; abdomen very shiny, finely 

 and sparsely punctured, punctures more dense toward bases of segments, 

 margins of segments light testaceous, and with bands of white hair on 

 segments one to four. 



Length about 9 mm. 



Three specimens: Sioux Co., Nebr., June 3, on Syinphoricarpos ; 

 Crawford, Nebr., July 28, on Cleome ; Manitou, Colo. 



