14 Harry Scott Smith 
Genus Astatus Latreille 
SYNOPSIS OF THE SPECIES 
Insect without ered smiarkinigs 6), pps nit teeters tel a ereietnte ae ae ne 
Insect with at least the base.of abdomen red..............0eceeeceee 
1) Pubescence of thorax whitish oc? bunc. ot nee ss to eee 
wis '‘Pubescende: ‘oF thorax » blacks: % nes eke eee eee nubeculus 
2. Marginal cell distinctly shorter than the first submarginal ; 
metanotum-finely” granulate: 350 o¥< ccs Joe a cates asper 
2. Marginal cell generally as long as or longer than the first 
submarginal; metanotum rather coarsely reticulate....... 3 
3. Metanotum coarsely reticulated, with a central longitudinal ridge, 
bicolor 
3. Metanotum more finely reticulate, without a longitudinal ridge 
downi.- the “Center 21.2.2 heehee Aes aoe eee nevadicus 
Astatus unicolor Say. 
1824. Astata unicolor Say, Long’s Es peniion: ii, Appendix, p. 337. 
1859. Astata unicolor Say, Leconte edition, i, p. 228. 
1893. Astatus unicolor Fox, Proceedings of the Academy of Natural 
Sciences of Philadelphia, p. 539. : 
Eight male specimens taken at Weeping Water and Lincoln, 
from June to September (H. S. Smith), _ 
Astatus nubeculus Cresson. 
1865. Astata nubecula Cresson, Proceedings of the Entomological So- 
ciety of Philadelphia, iv, p. 466. 
1893. Astatus nubeculus Fox, Proceedings of the Academy of Natural 
Sciences of Philadelphia, p. 543. A 
Three males from Sioux county. Easily recognizable from 
the above species by the black pubescence. 
Astatus bicolor Say : 
1823. Astata bicolor Say, Western Quarterly Reporter, ii, p. 78. 4 
1859. Astata bicolor Say, Leconte edition, i, p. 166. 
1893. Astatus bicolor Fox, Proceedings of the Academy of Natural 
Sciences of Philadelphia, p. 540. 
This insect ranges across the entire state, having been taken 
at Lincoln, Weeping Water, and Glen, June to August (P. R. 
Jones, W. D. Pierce, H. S. Smith). This and the following spe- 
cies have red abdomens generally tipped with black in the males. 
Astatus asper Fox. 
1893. Astatus asper Fox, Proceedings of the Academy of Natural 
Sciences of Philadelphia, p. 546. 
336 
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