102. Bulletin of the Brooklyn Entomological Society Vol. XIII 
Cresson in 1870 described Odontomerus vicinus and his de- 
scription corresponds to the males of a. I shall, therefore, until 
Provancher’s type may be examined, consider canadensis a syno- 
nym of vicinus. 
TABLE TO SPECIES OF Odontomerus.* 
* This table is largely compiled and intended only for what temporary 
usefulness it may serve to those who, like myself, have not had oppor- 
tunity for a careful comparison of the types. 
T /AbGomenmnmed ih tiein ls awake anf dea se Minister (2) 
Abdomen black ........ Aci PRM ila OS Aah Shale ee err (5) 
2 IES CED TACK Been Ney eee ei Deen Oey Aen IETS Rem ne (2) atripes Rohwer 
IB eVex ik cee CRI Nee ee PRA Mn Romy ATG Nur as! oid Bie (a 60 0 (3) 
3. Sides of propodeum finely punctured; parapsidal grooves finely, irregu- 
larly foveolate; areola of propodeum not three times as long as its 
Praise sayy thie ye Ses aie Aunts A oleae ae ead pay ie ages a eth ea dichrous Rohwer 
Sides of propodeum ‘not or obsoletely punctured; parapsidal grooves 
not foveolate; areola of propodeum about three times as long as its 
Dasa Swab bay he ier Get ee ON a AG ae (4) 
4. Posterior femora very short and stout ............... bicolor Cresson 
Posterior femora longer and more slender........ abdominalis Cresson 
eeultegsoentinely:, black ii aequewAmins eal hee stv alae’ dese nr (6) 
Atleast theyantenormnotulessmyell owen neancan einen ieee (7) 
6. Second and following segment's of the male nearly impunctate, female 
WAG GEC ADC Olt emmmanne tru atcha Naru (35, 2) atripes Rohwer 
Second and following segments of the male rather densely punctate; 
abdomen (ol weniales blacks veces cece se eee (3, 2) @ethiops Cresson 
Fo, Caheaee Ori joreoynyoralewbhan GhISKMIMNGe So bahoseebochuebososoubsocoucdoosce (8) 
Canines on ipropodenm: obsoleteyn- ser ae ms aeeeee (2) alaskensis Rohwer 
8. Basal area of propodeum separated from the areola by a transverse 
(Crete Wht Ia RU aU ain PUA NOT RIEGEL 3 Mma I Fo (2) errans Rohwer 
Basal area of propodeum confluent with the areola ............... (9) 
gy. Head seen from above widely expanded behind the eyes, the occipital 
margin deeply concave; female with the posterior femora tipped 
with black and their tarsi fuscous at apex; male with the hind legs 
entirely fuscous (except the trochanters), with the face closely 
punctate all over, and with the median part of the face not much 
Elevate dea wa ol en MOM Ry PRD MAU BE SIe aoe (5, 2) vicinus Cresson 
Head, seen from above rotinded or bent, slightly widened behind the 
CVSS NL ae nS aie ts WANA. Rae aaa aU MMS at Meta pe) (10) 
10. Female: Post petiole with a broad longitudinal sulcus, smooth medially 
and only slightly and finely roughened laterally; the base of the 
second segment with only a small amount of fine irregular acicula- 
tion; posterior femora not tipped with fuscous. the hind and middle 
