180 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvin. 



sor For.ster writes of this specimen. "Wings not in full color, but 

 perhaps the coloration of th*^ l)ody may indicate a species distinct 

 from the races of )(j>ii]M')i)us\ hut this is a very difficult matter to set- 

 tle." Because of the very scanty material before me I content m^^self 

 with referring- it to ujnipcnuh for the present. A description of the 

 single male follows: Abdomen 21 mm.; hind wing 25. Labium yel- 

 lowish white, black tipped; a large greenish-white spot on either side 

 of labium, l)etween labium and eye; a spot on the outer side of each 

 posterioi- ocellus and two on the posterior ridge of the occiput, green- 

 ish white. The triangle formed ))}' lines connecting these 2 posterior 

 spots and the anterior ocellus has the line between the 2 spots as the 

 longest side; an oblong spot on the rear of the head between the 2 

 posterior spots. Eyes bronze with purplish reflections above. Rest 

 of head black, shining in front, velvety above. 



Prothorax black, anterior lobe with 2 pale bluish spots on either 

 side; middle lobe with 2 larger pale bluish spots on either side; hind 

 lobe with its ■ anterio-dorsal surface crescent-shaped and rust red in 

 color. Thorax black above, mid dorsal triangular area short, dark 

 rust-red in color, its base about one-half as long as its sides; on either 

 side of the dorsum is a stripe reduced to an antealar spot above, an 

 ovate spot below, and just below the ovate spot a small round spot, all 

 blue in color. Metepisternum iargel}^ blue, this blue variegated below 

 and behind with orange; mesepimeron with a blue stripe just behind 

 the humeral suture, widening below to fuse with the pale color of the 

 metepisternum opposite the metastigma; metepimeron with a large 

 triangular blue spot occupying nearly its entire surface, the blue 

 variegated ])ehind and below with orange. Metasternum black with 

 two lateral longitudinal yellow stripes and apex pale yellowish. 



Wings hyaline, apically with the merest trace of brown, which has 

 bronzy reflections; this dark area begins on the front wings between 

 the nodus and stigma and on the hind wings at the nodus. Hind 

 wings with 2 rows of vitreous spots, which are of a pale bluish milk 

 color by transmitted light, and a light iridescent red by reflected 

 light. So slight is the trace of brown on the four wings, as described 

 above, that in this specimen the vitreous spots are the least trans- 

 parent portions of the wings. This lack of density in the brown is 

 probably due to immaturity, though 1 detect no other condition in the 

 specimen to indicate this, unless it be the color of the stigma. The 

 vitreous spots are located as follows: flrst row, consisting of one spot 

 9 cells long, has its ])asal end just be^^ond the nodus and is placed 

 between R., and M.,, which sectors bound anteriorly and posteriorly the 

 middle spot of the 3 spots of the second row of vitreous spots; anterior 

 spot of second row placed l)etween Mja and M^; and the posterior spot 

 between M^ and Cu^. All four of the spots are similar in size and 

 shape, the middle one of the second row somewhat the largest, all 



