June, '07] ENTOMOLOGICAL NEWS. 249 



Prothorax but little more than three-fourths as long as the head; 

 nearly one-third of its own width wider than the head; sides well 

 rounded ; angles rounded ; surface smooth ; two long spines at each 

 posterior angle; no long spines at the anterior angles; besides the 

 long spines at the angles, there are six shorter ones arranged in a 

 transverse row near the posterior border, the two middle ones in the 

 row being the longest; there are three short upcuvred spines at each 

 of the anterior angles and a single spine near the anterior border on 

 each side, about half way from the angle to the median line. Prothorax 

 concolorous with pterothorax ; much lighter than head and abdomen. 

 Mesothorax more than one-fourth its own width broader than the 

 prothorax ; metathorax somewhat narrower than mesothorax ; meso- 

 and metathorax together slightly more than one and one-half times 

 as long as the prothorax. Surface of mesoscutum strongly reticulate. 

 Wings well developed; somewhat variable in length, usually reaching 

 the anterior border of the seventh abdominal segment; very narrow 

 and slender for length; fore wings only slightly longer than hind ones. 

 Breadth of fore wings at middle only about one-twenty-first their 



F 'g- 3-— Ventral view of ptero- Fig. 4.— Left forewing. 



thorax ; ^/,endo-thoracic inva- 

 ginations ; ms, mesosternum ; 

 mt, metasternum. 



length ; the basal fourth of each transparent, the remainder being 

 heavily shaded with brown, especially the middle portion. Two longi- 

 tudinal, but not prominent veins extend to the tip of each fore wing; 

 spines on the basal portion of the wing light, but on the shaded portion 

 brown ; spines on costa of good length and about twenty-five in num- 

 ber; on the fore vein from eighteen to twenty, placed at regular in- 

 tervals for the most part, but with a considerable gap toward the 

 base of the wing and often with irregular gaps toward the apex ; on 

 the hind vein there are from thirteen to fifteen spines also placed 

 regularly for the most part, but usually at greater intervals toward 

 the apex of the wing ; the scale bears several spines ; costal fringe of 

 fore wings rather slight; posterior fringes moderately heavy and more 

 or less crinkled ; surface of wings thickly covered with minute spines. 

 [S (especially the middle and hind pairs) rather long and slender; 

 quite strongly and evenly spinosc, but otherwise unarmed except 

 for a comb-like row of about twelve stronger spines on the 



