H. C. FALL 
If). Species of the Pacific C’oast, extondiiis inland to rtali. . . L'). roNsohrin ns 
Species of the North Atlantic and (ireat Lakes region 17 
17. Form narrower and size rather smaller; oedeagiis riifo-testaceous. 
1(). (iquiris 
Form broader, size slightly larger; oedeagus dark brown or piceons. 
17. Icroulci 
IS. Sides of ventral segments rnfo-maculate IS. indciiJircnlris 
Sides of ventral segments not rufo-maculate p.) 
11). Surface in both s(‘xes micro-pnnct idate and minutely alutacc'ous. 
11). pli’iirdh's 
Surface in botli sexes thickly covered with very fine, short, obliciue si riolae. 
20. djiidis 
20. Basal joint of front tarsi of male narrower than the two following joints, 
size rarely if ever as great as 7 mm 21 
Basal joint of front tarsi of male as wide as the two following joints; size 
very large, 7 mm. or more ;>1 
21. Anterior margin of metasternum eniarginate and impre.s.sed each side, 
giving a trilobed outline 21. pectordlis 
Anterior margin of metasternum not impresso-emarginate 22 
22. Strial inmctures of elytra much larger at sides than near the suture, 
the lateral striae canaliculate 22 
Strial punctures of elytra less evidentl}" larger laterally, fre(|U(Mitly 
scarcel}' at all so, lateral stiiae not or scarcely impressed 2d 
2.2. hlleventh elytral stria so nearly marginal as to lx* scanady visible when 
viewed from the side; size smaller, less than d.d mm 22. pdrriis 
Eleventh elytral stria less strictly marginal, distinctly visible from th(> 
side; size larger, more than d.d mm 24 
24. Sides of ventral segments not i>aler, the anal segment alone .sometimes 
in part rufous or rufescent 22. borcdlis 
Sides of ventral segments obscurely and diffusely rufous.. . 24. puipotu's 
2d. Upper surface i)olished and without or with scarcely detectable micro- 
sculpture in the male 2ti 
Upper surface less shining or rather dull, and with more or less evident 
micro-sculpture in both sexes 2S 
26. Strongly convex, surface without trace of alutaceous sculpture in (dther 
sex 2d. pcrnilifids 
Moileratel}' convex, females perceptibly but as a ruh' very fimdy alu- 
taceous - ‘ 
27. Upper surface wit hout aeneous luster except along the margin. 
Form a little nai’rower, luster rattier more' strongly shiidng, middl(' 
lobe of oedeagus not latinnlly compressed apitcdly, t, In; widt h gi’cat er 
as viewed from above' than from t he side; P.acific ( loasi spe'cie's, extend- 
ing eastward to Manitoba -6- pin pi s 
TR.VNS. .\M. ENT. SOC., XLVII. 
