156 ASHMEAD [150] 



femora more or less basally and hind femora black ; anterior 

 tibiae and tarsi yellowish ; apex of hind tibiae and their tarsi 

 fuscous /. kincaidi. 



4. Abdomen not nearly blacky with one or more segments red or 



yellow 5. 



Abdomen almost -wholly blacky with only extreme apex of the 

 petiole and extreme apices of second and third segments nar- 

 rowly testaceous. 



Face below antennae, scape beneath, palpi, an abbreviated line in front 

 of tegulae and one below, and the anterior tarsi, ivory or yellowish- 

 white ; scutellum and postscutellum yellow ; legs red, with all 

 coxae, first joint of trochanters, hind femora within tips of their 

 tibiae and their tarsi, black /. simulator, 



5. Abdomen with second and third segments, and sometimes the 



fourth or others, more or less red or yellow but stained or 



marked with black 6 . 



Abdomen with second and third segments entirely red 8. 



6. Second and third segments more or less yellow 9. 



Second and third segments more or less red. 



Scutellum yellow 7. 



Scutellum black. 



Face entirely black ; legs black, with the apices of the front and mid- 

 dle femora and all tibiae and tarsi, except sometimes the hind tibiae 

 at apex reddish-yellow. Male /. cervulus. 



7. Face below antennae and scape beneath, yellow. 



Legs black with anterior femora, except beneath toward base, apices 

 of middle femora, spot at base of hind femora within, all tibiae, 

 except apical third of hind tibiae and tarsi, except apices of joints 

 I to 4, and fifth joint of hind tarsi entirely, reddish-yellow. Male. 



/. kodiakensis. 



8. Face below antennae, except an orbital line and scape beneath, black ; 



scutellum and legs, except coxae and trochanters, red. Male. 



/. popofensis. 



Face below antennae and scape beneath, yellow ; scutellum red or with 



a red spot ; the legs red, with the coxae, trochanters, apices of hind 



femora, and their tibiae, black. Male /. glacialis. 



9. Face, scape beneath tegulae, an abbreviated line in front and below it, 



the legs (except a spot beneath and behind the front and middle femora, 

 a small spot on middle coxae, hind coxae, first joint of their trochan- 

 ters, their femora and apex of their tibiae), the scutellum and broad 

 bands on second and third abdominal segments, yellow; sometimes 

 the collar and fourth abdominal segment are maculate with yellow. 



Male /. tuilsoni. 



10. Males II. 



Females. 

 Ferruginous ; sutures of thorax, prosternum, mesosternum broadly 



