Oct., '05] ENTOMOLOGICAL NEWS. 27I 



Hab. — Fort Collins, Colo., May 26, 1905 {S. A. Johnson). 

 A very fine species, allied by the thickened flagellum to B. 

 azygos Viereck, but easily known by the spotted abdomen. 



Mr. Johnson states that B. johnsoni was taken over flowers 

 of Astragalus, at the " hogback," west of Fort Collins. He 

 suggests that it may be parasitic on Anthophora montatia, 

 which he took at the same place, or on A. simillima (syn. 

 eiiops), of which he took several a little further on. 



Synbalonia astragalina n. sp— J' Length about \y/2 mm. ; black, the 

 hair of occiput, cheeks, thorax and first abdominal segment fulvous, very 

 bright and red on thorax above ; abdomen with grey bands exactly as in 

 6". honesta {Cr .) , broad on second segment, narrower and more conspicu- 

 ous on third to sixth, the intervals between the bands very black. 

 Antennae entirely black, long, flagellum strongly crenulate ; clypeus light 

 yellow, the yellow with a large rectangular notch on each side ; labrum 

 light yellow, with yellowish white hair, tongue and blade of maxilla very 

 long ; mandibles without any yellow spot ; mesothorax strongly and 

 densely punctured, shining and more sparsely punctured in the middle; 

 tegulae pale testaceous ; legs black, with pale yellowish hair, the small 

 joints of the tarsi rufous ; spurs light ferruginous, quite normal. The 

 insect looks very much like S. honesta, but is easily separated by its 

 larger size, more brightly colored thoracic pubescence, entirely light 

 anterior edge of clypeus, pale labrum, narrower face, broader apical 

 plate of abdomen, etc. The size oiS. astragalina is like that of .S. gil- 

 lettei STtoviana, but the thoracic pubescence is of an entirely different 

 color ; the apical plate of abdoijien in astragalina is broadly truncate ; in 

 snoviana it is narrower and rounded. 



Hab. — Boulder, Colo., June 4, 1905 {^W. P. Cockereli). At 

 flowers of a small species of Astragalus. 



Bombas rnlosnffnsns n. sp. — 9 Length about 25 mm.; light hair of head 

 and thorax pale ochreous. shining whitish in some lights ; hair of face 

 (supraclypeal region and about antennae), occiput and space just behind 

 ocelli light, but there are a few dark hairs between the antennae, and the 

 hair of the extreme sides of face is black ; cheeks with the hair entirely 

 black ; disc of clypeus with very sparse, small punctures ; malar space 

 about as broad as long, about one-fourth length of eye ; third antennal 

 joint shorter than fourth and fifth combined, but much longer than fifth, 

 which is conspicuously longer than fourth ; thorax with light hair in front, 

 on scutellum, and on pleura, except its lower part ; black hair on lower 

 part of pleura, on metathorax, and a large tuft on each side of middle of 

 thorax ; middle of thorax bare, densely punctured, except a central 

 smooth space ; the bare region with the lateral black tufts give the 



