300 
GEO. H. HORN, M. I). 
puiictiite iuul strigose. Abdomen finely punctate, sparsely along the median line, 
more densely at the sides, especially on the first two segments, which ai-e also 
slightly strigose, the vertical portion of the segments densely clothed with golden 
])iihescence ; last segment obtuse at tip; pygidium coarsely punctate, rather 
strongly carinate, the carina projecting and truncate at tip ; claws dissimilar in 
the sexes. Length .31 — .37 inch.; 8 — 9.5 mm. 
Male. — Prostennmi densely jtunctured and opaque, not pnltescent. 
First ventral segment slightly flattened at tniddle and rugulose, the 
second with a very feeble longitudinal depression ; tibiae of all three 
pairs distinctly inucronate at the inner apical angle ; claws of front 
feet almost truly bifid, middle feet less so, posterior feet nearly toothed. 
Female. — Prosternum less densely punctate and more shining. 
Ventral segments not impressed ; tibiae not inucronate at tip ; claws 
rather broadly toothed on all three jiairs of tarsi. 
Among the numerous specimens examined no variation worthy of 
mention lias been observed. Jiesemhles fuscipennis, but the color of 
the thorax of that species is due to varying color of the surfoce, and 
not to the presence of pubescence, as in the present species. 
Hab. — Massachusetts, westward to Illinois. A specimen ( 9 ) in 
my cabinet from Nevada is at present not sejiarable, but the male 
may show it to be distinct when discovered. 
.4. audax n. .sp. 
The species for which this name is proposed so closely resembles 
vittatocullis, that it seems unnecessary to repeat the description, only 
the points of diflerence will be given. 
Thorax similar iu color, but rather more evidently transversely strigose, the 
median line of golden pubescence does not reach the apical margin, the lateral 
pubescent area is separated from the margin by a naked edge, hut the pubes- 
cence extends to the hind angles; body beneath more brassy, the propleurae, 
mesopleurie, metapleurai and outer half of coxal plate with golden pubescence. 
Length .35— .40 inch. ; 9 — 10 mm. 
Male. — Prosternum closely punctate, not pubescent, the intercoxal 
process gradually narrowed without dentiform reflexion of the edge. 
First ventral segment slightly flattened at middle, the second with a 
rather deep smooth groove, which is wider in front, extending three- 
fourths to the posterior edge of the segment; anterior and middle 
tibirn feebly inucronate, the posterior simple ; claws nearly as in 
vittatocollis. 
Female. — Prosternum less closely and deeply punctate. Ventral 
segments simple ; tibiie not inucronate ; claws as in vittatocollis. 
This species presents the closest resemblance that it seems possible 
