124 
Soc., v. 14, p. 209; and free use is made of Mr. J. B. Smith’s studies of the 
sexual structures, “Notes on the Species of Lachnosterna of temperate North 
America, with Descriptions of New Species,” in Proc. U. S. Nat. Mus., v. 11, 
p. 481. 
1 
bS 
(Sh) 
ol 
-] 
10 
Surface clothed with scales, subopaque; male with ventral segments 
carinate at middle, hind tibiz with both spurs free, and hind tarsi 
long and slender; female apterous; antenne i0-jointed. 13-17 mm.... 
lanceolata, Say 
Surface -abov.es la Droiuse osiot.ceeeibers scstets rare alte) oleic «tees ollie: Feuer ene 2 
Surface above = DUDESGONtT LOG WATT once: .j-sceacere) «pc's s oussliehe stone tal aye temecenele) sterarete 30 
Antenne. 10-jointed . i.e eee de ys meme i er ees hit 3 
Antenne: | 9ojOimte dew. csi tenece caats, 0! okclfor bugis sluenaY list sheet hel ehral cae Renee gh re 4 
Fixed spur of hind tibia short; metasternum hairy, penultimate seg- 
ment with an elevated slightly roughened transverse ridge, narrowly 
separated from the posterior margin. 15-16 mm...pretermissa, Horn. 
Fixed spur of male wanting; metasternum nearly naked; slender, rufo- 
testaceous, shining; penultimate ventral segment of male rugulose, 
last ventral concave with two feeble cusps in the concavity. 13-15 
1400 GRR iar Mier ante han tr RPE POR Hina Nir rs Sep tenes AonG ty RENCE glaberrima, Blanch. 
Fixed spur short; similar to preceding, clypeus less distinctly emargi- 
nate: abdomen of male channeled, penultimate ventral with a de- 
pressed roughened space at middle, near hind margin, depression open 
behind, its floor with sharp blackish posterior edge, occupying a deep 
emargination of edge of segment, and separated by a small notch at 
each end from the sides of the impression, which terminate posteriorly 
in thick  projectine angeles. m4 Semin, can. ae oten sia eee ephilida, Say. 
Kixed-spur lone jor moderateliyslOmey ee: scy.re, kesouetorcteustot ten: depet=t n= er cient means 6 
Inner spur of hind tibia; of male anchyloseds. a. << je. 2s. «os, wie chemo elves 5 
Inter: spur oftmeailestree. sit ne 5, solo clacsas eteaetst eke elites chs =\jaiteber mens resetieiee ita 33 
Fixed spur of male short; clypeus deeply emarginate; elongate cylin- 
drical, pale yellowish testaceous, head darker; abdomen of male flat- 
tened at middle, last ventral irregularly concave. 10.5-13 mm. 
longitarsus, Say. 
Kixed spur ‘at leastamodenatiely: som esrsrgses cnetsl teh st ome ele ite suet nek ee 25 
A marked sinuation at end of male hind tibiew, at base of fixed spur, 
in. line with under Surface: Of tibiasicay cca or cre erteeecs crete eeeeeens ae He 
No distinct.sinuation at apex of hind tibiew as described.............. alae 
Subcylindrical, slender, yellowish testaceous, thorax and head darker; 
claw tooth small; penultimate ventral of male abruptly declivous at 
middle: AOS. TMM RS eet da helo oo tekeree cit cotte acboRe neta emacs gracilis, Burm. 
Oblons-oval “darker-Uclawe tecthe SUOM 2S: .) y viens cts Sele lei seabeele cy sienna ieee nae 8 
Fixed spur boot-shaped; clypeus feebly emarginate; thorax rather 
coarsely and sparsely punctate; penultimate ventral of male obliquely 
plicate each side of the middle, last segment with a deep concavity 
limited behind by a sharp elevated margin overhanging posteriorly. 
0D Wy igh 190 0 anc eae ee ee ea Ree ee hE RC RAR TEA d Shen Ramm nmin st gibbosa, Burm. 
Kixedsspursof usual? Lorre pscicc. cs tae eee ie ois ee eee 9 
Abdomen of male at middle hairy and rather deeply channeled, last 
ventral with a rather smooth triangular impression, hind margin 
with a broad emargination, prolonged at middle in an acuminate 
point up the middle of the triangle, and closed by paler membrane; 
thoracic punctures coarse and close, denser anteriorly, a smoother 
Na eXO DE NOWMASHOH Shad YEMGs) eahii oh SO Nano oo Sd Oooo bon Gmc hirtiventris, Horn. 
Abdomen <labrous at middle iit ae «,.niere keane) Seems hei tass) cn cee 10 
Abdomen of male deeply and sharply impressed along middle, penulti- 
mate ventral strongly and acutely emarginate, slightly transversely 
plicate each side of median channel, last ventral with broader deep 
longitudinal impression, widening posteriorly and ending behind in 
two black projecting lobes separated by an acute notch; thorax 
evenly, moderately punctate; color rufocastaneous to piceous. 15-19 
10th ae ee a Re eo Sr RIN eo SB gon ma oa oe congrua, Lec. 
