F. R. COLE 25 



vein dividing the posterior cell; thus a second submarginal cell is formed; 

 2. The cross-vein in the first posterior cell is just opposite the cross-vein at 

 the base of the second posterior cell, and not far beyond it as in Wiedemann's 

 figure; 3. The vein between the second and third posterior cell reaches the 

 margin; 4. The fourth posterior cell, which is closed, is much longer, forming 

 an irregular parallelogram with a cross-vein at its base. Antennae dark brown, 

 basal joints reddish, the elongated third joint also somewhat reddish on the 

 inner side. Thorax black, shining, and clothed with dense and soft yellowish 

 gray pile, almost rendering it opaque; humeral callosities whitish yellow; ante- 

 alar callosities brownish. Abdomen black, densely clothed with short, erect, 

 j^ellow pile; all the segments with broad, clay-3^ellow hind borders. Legs includ- 

 ing coxae yellow, the extreme end of the last tarsal segment and ungues black. 

 Wings very shghtly tinged with brownish; costal cells a little more saturate. 



"Hab. Dallas, Texas (Boll). One specimen. 



"Observation. — This fine species is not unlike Erichson's figure of O. longi- 

 cornis (Entomographien), but the venation is different, the black on the abdo- 

 men occupies more space, the hind tiljiae are brown, the aljdomen much 

 stouter; the size is larger by one-half than the figure." 



Dr. Williston published a note on this species in these Trans- 

 actions. In this specimen the outer first posterior cell was but 

 slightly coarctate, not closed and petiolate; otherwise it agreed 

 well with the description. 



Ocnaea schwarzi new species (Plate III, fig. 13.) 



Head black, the mouth opening apparent; short yellowish palpi. Thorax 

 and scutellum metallic blue black, clothed with silky brown pile which has 

 yellowish gray reflections in certain lights. Antennae black with dull reddish 

 color in places, the third joint velvety. Humeral callosities yellowish, a small 

 obscure reddish yellow spot on the thorax just back of them. Squamae gray- 

 ish hyaline with blackish brown margins. 



First segment of abdomen short and bulging out above the second. The 

 posterior half and sides of the abdomen brownish yellow; the basal cross bands 

 metallic blue black with soft brown pile. On the fifth segment the black is 

 confined to a median spot. Venter yellowish with the bases of the segments 

 broadly brown. Pleura blackish brown, the color extending down on the 

 coxae. 



Legs brownish yellow; the tiliiae with two spurs, the outer one large. Tips 

 of tarsi and claws black, the pidvilli rather small and with longer fringe than 

 usual. Pile of legs short, yellowish graj' and shining. Wing veins strong and 

 black, the membrane graj- hj-ahne, a little brown along the costa. The vein 

 between first and second posterior cells does not reach half way to the margin. 

 In one wing the vein between the second and third posterior cells stops a little 

 short of the margin. Length, 9.5 mm. 



Habitat. — Cayamas, Cuba. (Schwarz coll.) 



TRANS. AM. ENT. SOC, XLV. 



