54 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.52. 



and curved. The pulvilli are distinct; the anterior tarsi are un- 

 usually flat and broad, the apical segment less so, and each segment 

 below bears a black spot. The medial femora are strongly emarginate 

 below and bear a slight notch beyond the emargination. The hind 

 femora are also more or less emarginate below, sometimes taking the 

 form of a slight dilation of the segment apically beyond the middle. 

 The second sternite is bituberculate. 



Female. — Black: Clypeus, labrum, mandibles except apices, scape 

 except small spot above, semicircular spot in front of anterior ocellus 

 and lower part of frons separated by a black butterfly-shaped spot 

 that above is broadly connected laterally with the black of the vertex, 

 posterior orbits usually united across the vertex, posterior border of 

 pronotum including the tubercles, sides of prothorax except spot in 

 front of tubercles, tegulae, lateral lines above tegulae and medial 

 longitudinal discal lines which may be continued posteriorly to form 

 a more or less broken U-shaped mark on scutum, curved fascia on 

 scutellum, narrowed medially, fascia on metanotum, continuous 

 curved fascia on dorsum of median segment, lateral angles of same, 

 mesopleurae and sternum almost entirely, spot on metapleurae, spot 

 on side of median segment anteriorly, fasciae on tergites continuous 

 and rather broad, the first with a broad shallow anterior emargina- 

 tion, the remainder slightly waved anteriorly but not emarginate, 

 medial spot on apex of ultimate tergite, middle and narrow apical 

 margin of first sternite, fasciae on sternites 2-5, that on second broad 

 and deeply emarginate anteriorly, apex of ultimate sternite, legs 

 below except spot on middle and posterior coxae, and above except 

 spots on all coxae, trochanters, femora, and posterior tibiae, yellow 

 or pale yellowish white. The flagellum is testaceous below. The 

 middle femora are short and stout; the posterior femora are in- 

 crassate near the middle; the apical segment of the anterior tarsi is 

 not dilated so much as that of the male; the pulvilli are present but 

 small. 



Length. — 9-12 mm. 



Of the four male specimens before me one, the type specimen, is 

 from Florida, and three are from Texas. The specimens from Texas 

 differ from the type in that the emarginations of the middle and 

 posterior femora are less pronounced. One of the males from Texas 

 is somewhat smaller than the type. In his description Fox states 

 that the intermediate metatarsus is curved, which statement can 

 scarcely be considered accurate; the segment is bent quite near the 

 base but it is not curved as is that of serrata or speciosa. It is, how- 

 ever, near the base slightly dilated on the anterior margin and some- 

 what roundly incised on the inner side in much the same fashion as 

 is the corresponding segment on the anterior tarsus. Furthermore 

 the inner, posterior angle of the middle tibia is produced into a short 



