HENRY J. FRANKLIN. 423 



in the median, submedian, basal part of second discoidal and distal- 

 anterior part of the radial cells. 



Legs.— Dark; corbicular fringes dark ; hind fringes of posterior meta- 

 tarsi short throughout. 



Worker. — Much like the queen. 



Male. Head. — Broadly rounded. Face mostly dark, but often with 

 a strong sprinkling of yellow hairs ; occiput with a triangle of yellow 

 pile, often with black hairs strongly admixed ; cheeks mostly dark, but 

 often with a sprinkling of yellow hairs. Mandibles (fig. 38) very scantily 

 bearded. Malar space but little more than a mere transverse line. 

 Clypeus pretty well covered up with pile. Eyes greatly swollen. 

 Ocelli placed at more than one-third of the distance from the supra- 

 orbital line toward the bases of the antennae, each lateral one sepa- 

 rated from the inner margin of the eye by less then one-half its own 

 diameter. Vertex between the eyes slightly narrower above, than at 

 the ocelli. Flagellum of antennae between two and one-third and two 

 and one-fourth times as long as the scape ; third and fifth antennal 

 segments equal in length, the fourth shorter. 



Thorax. — Dorsum sometimes entirely covered with yellow pile, some- 

 times with the disc more or less black and sometimes with a distinct 

 black band between the bases of the wings ; mesopleura covered with 

 yellow pile to, or nearly to, the bases of the legs ; metapleura usually 

 clothed with yellow pile, but occasionally dark ; sides of median seg- 

 ment sometimes with yellow and sometimes vijith dark pile. 



Abdomen. — Dorsum : segments one and two covered with yellow 

 pile ; segment three black, but often with slight touches of yellow on 

 the sides ; segments four and five black ; segments six and seven usu- 

 ally entirely black, but often with more or less ferruginous pile. 

 Venter mostly black, but with middle portions of apical margins of 

 segments fringed more or less with short light hairs. 



Genitalia. — Outer spatha (fig. 11) large, quadrangular, with lateral 

 margins slightly incurved and converging somewhat posteriorly ; ante- 

 rior margin broadly and strongly, but not deeply, incurved ; hind 

 margin with a large median, almost semicircular notch ; anterior 

 lateral projections broad and rounded at the end ; ventral surface of 

 posterior two-thirds hairy, the hair being thickest and longest on the 

 sides. Inner spatha (fig. 22) with middle of front margin projecting 

 forward very strongly, the greater part of this projection being heavily 

 chitinized ; side margins somewhat irregular and converging rapidly 

 posteriorly ; hind margin incurved somewhat ; sides of apical portion 

 of ventral surface densely hairy ; with a noticeable chitinous thicken- 

 ing on each side of the middle line ; sides of anterior margin heavily 

 chitinized. Claspers (figs. 71 and 87) thick and powerful in appear- 

 ance ; the branches very broad and broadly rounded at the end as 

 seen from dorsal side ; squamae large, the outer lobe of each rounded 



TRANS. AM. ENT. SOC, XXXVIII. 



