HENRY J. FRANKLIN. 159 



four mostly dark, but with white pile on apical margin ; segments five, 

 six and seven clothed with white pile (sometimes many of the hairs of 

 this pile are black at the base and shade out quickly into white). 

 Venter usually mostly dark, but with some of the hair on some of the 

 apical segments whitish. Hypopygium entire at apex. 



Genitalia — Outer spatha (fig. 153) short and wide ; its front margin 

 deeply and evenly incurved, the side margins evenly, but not strongly, 

 outcurved, the hind margin deeply and evenly incurved ; ventral sur- 

 face of hind portion rather sparsely hairy with long hairs. Inner 

 spatha in general form much like that of crotchii (fig. 130), but with- 

 out fenestrae and with hind margin of apical portion more deeply 

 emarginate. Claspers (figs. 178 and 180) powerful in appearance ; 

 branches with apices appearing rather quadrate with rounded cor- 

 ners as seen dorsally ; volsellse moderately thick and tapering some- 

 what, so as to be narrowest at distal end, their apical projections 

 small, but noticeable; squama with two well developed lobes, the 

 outer one being the larger and having its outer face deeply concaved 

 and strongly roughened by protuberances and striations. Sagittae 

 with long shafts and recurved, broadly foliaceous heads, the outer 

 margins of these heads being serrated. Head of sagitta extending 

 back fully as far as tip of squama and tip of volsella not extending 

 very far beyond either the sagitta or the squama. Uncus broad and 

 tapering slowly toward the recurved and mesially grooved tip. Inner 

 end of inner lobe of squama reaching but little beyond inner margin 

 of volsella. 



Wings. — Colored about like those of queen. 



Legs. — Mostly dark. Hind tibias with outer faces convex and more 

 or less hairy throughout (sometimes with only a very few scattering 

 hairs on the apical half), their fore fringes moderately long and their 

 hind ones very long, forming fairly good corbiculae. Hind metatarsi 

 more than three times as long as their greatest width, with outer faces 

 flat or nearly so and hind fringes long. 



Dimensions. — Length: queen, about 17 mm.; worker, 12 mm. to 

 13 mm. ; male, 12 mm. to 14 mm. Spread of wings : queen, about 

 40 mm. ; worker, 27 mm. to 30 mm. ; male, 31 mm. to 33 mm. 



The queen is here redescribed from two specimens. 



There is a worker from Costa Rica before me which ap- 

 parently belongs to this species, though in coloration of pile 

 and color of wings it is more like vohicelloides. It does not 

 agree with vohicelloides in structure, but it does agree with 

 funebris. It may be described as follows : 



Color Variant i . — Like typical worker, but with white patch on disc 

 of thorax obliterated, except for a noticeable trace in front, and with 

 apical two-thirds of third dorsal abdominal segment clothed with white 



TRANS. AM. ENT. SOC, XXXIX. 



