102 Bulletin Wisconsin 'Natural Bistory Society- [Vol. 9, No. 3. 



duced in the middle along- the frontal sulcus. Antennae black. Hair 

 on frons and vertex black, otherwise pale. Thorax yellowish brown, 

 covered with white pile which is longest dorsally. Humeral, first 

 suture below and second lateral suture with dark stripe, widest above, 

 of metallic blue, showing a decided violet reflection. 



Wings hyaline, membranule white, slightly fumose at the lower 

 end. Fore wings with small basal spot in C and Sc half way to or 

 reaching the first anteuodal, the first and second antenodals with a 

 small fuscous spot surrounding the intersection at Sc. A linear spot 

 surrounding the nodus. Hind wings with costal and subcostal streak 

 half way or to the first antecubital. All antenodals with fuscous at 

 the intersections, nodus with linear spot. A brown spot in the cubital 

 space at the extreme base reaching to the marginal vein. A spot in 

 the lower half of the anal triangle, following the oblique vein which 

 divides this triangle, or filling the lower half. Costa of fore wings 

 yellow at base. 



Legs dark brown, bases and fore femora yellowish. 

 Abdomen long and slender as in the foregoing species, segments 

 two and three moderately dilated. Segment 8 as long as 9 + 10. 

 Dorsum black, a yellow stripe occupying the lateral fifth of each, side 

 of 3 to 9, reduced on the posterior segments. Male appendages inter- 

 mediate between cynosura and Stella, though more nearly related to 

 the latter. 



5 , — Much like the male. The segment 10 of the abdomen shows 

 a small yellow spot on each side which is absent in the male. The 

 female appendages are longer than those of cynosura and less spiculi- 

 form. Vulvars slender and recurved, not flattened and divaricate as in 

 cynosura, the tips sub-parallel. 



Length abdomen: $ 28-31, $ 31 mm. Hind wing: $ 27-31, $ 

 30 mm. Average wings 30 mm., abdomen 30. 

 Described from the following material : 



Round Mt. Blanco Co., Texas, April 25, 1 894 ; coll. Calvert. 



Round Mt. Blanco Co., Texas, Schaupp ; coll. Calvert. 



Round Mt. Blanco Co., Texas, April 9, 1894; Milwau- 

 kee Museum. 



Cypress Mill. Texas, April 10, 1893; A. N. S. Phila. 



Florida, March 6, 1899, Blatchley ; coll. Williamson. 



