HENRY J. FRANKLIN. 373 



have slight ferruginous tinges on those segments. It should 

 be here noted that a similar fading out of ferruginous pile 

 often occurs, in a number of other species, notably in hiintii 

 and ternarius. 



Pile of medium length and texture. Face and occiput largely yellow. 

 Thorax mostly yellow, but with a distinct black band between the bases 

 of the wings. Dorsum, of abdomen usually mostly yellow on the two 

 basal segtnents, ferruginous-red on the third and fourth segments and dark 

 on the apical segments. Venter with apical margins of segments largely 

 fringed with yellow hairs. Wings not very dark. Bases of legs with 

 considerable light pile. Malar space medium. 



Queen. Head. — Face with a large patch of generally pure yellow pile 

 reaching some distance above and below the bases of the antennae. 

 Occiput with a large triangular patch of yellow pile, often connecting 

 with some yellow hair on the cheeks. Labrum with tubercle-like areas 

 fairly well separated, the region between them and above the shelf-like 

 projection being deeply excavated, their margins rounded and summits 

 flat or concaved ; the shelf-like projection moderately broad and promi- 

 nent. Malar space somewhat longer than its width at the apex, be- 

 tween one-fifth and one-fourth as long as the eye. Clypeus finely and 

 somewhat sparsely punctate over the disc. Flagellum of antenna 

 about twice as long as the scape ; third antennal segment much longer 

 than the fifth, the fifth somewhat longer than the fourth. 



Thorax. — Dorsum entirely covered with yellow pile, except for a well 

 defined black interalar band ; center of the disc naked ; mesopleura 

 usually entirely covered with yellow pile to the bases of the legs, but 

 occasionally with their very lowest parts dark ; metapleura and sides 

 of median segment usually clothed mostly, or entirely, with yellow pile, 

 but occasionally entirely dark. 



Abdomen. — Dorsum : segment one entirely yellow, or black in the 

 middle with large tufts of yellow on the extreme sides ; segment two 

 entirely yellow, or with more or less definite median triangular patch 

 of black or more or less ferruginous pile, the base of the triangle 

 being on the base of the segment and its apex toward or on the apical 

 margin of the segment ; segments three and four mostly covered with 

 ferruginous-red pile, but the extreme side margins bearing yellow pile ; 

 segments five and six black. Venter with the apical margins of most 

 of the segments strongly fringed with yellow hairs. Hypopygium with 

 a median carina on its apical portion. 



Wings. — Somewhat stained with brown, but not strongly so ; the 

 fore pair lightest across their middle portions. 



Legs. — Coxae entirely dark or with some light pile ; trochanters 

 almost always with considerable light pile on their lower sides ; femora 

 occasionally entirely dark, but usually with a large amount of light 



TRANS. AM. ENT. SOC. , XXXVIII. 



