322 ENTOMOLOGICAL NEWS. [J u ty> '9 



rest of the segment is fairly even in outline. Wings smoky and dark 

 with dark veins. Wing expanse 9 mm. Wings at rest usually de- 

 flexed but more often reposed than in most species. 



In general, a blue-black species with blue-white flocculency. 

 The wavy filaments are as long as the body and curl out 

 from the side of the abdomen under the margin of the wings. 

 The wax filaments are silky in appearance and are slightly 

 fluted on some of the specimens. This condition of the fila- 

 ments is true, of course, only for those individuals which have 

 not become too much travel worn. 



Oviparous female. An apterous non-rostrated form, yellow, with 

 semi-transparent smoky white legs and antennae. Body length, 1.15 

 mm. Antenna, .28 mm. Five distince segments. Terminal sensoria on 

 IV and V. Eyes a group of 3 pigmented areas. 



Male. Apterous and non-rostrated. Body greenish with semi-trans- 

 parent smoky white legs and antennae. Body length, .75 mm. Antenna, 

 2.75 mm. Five distinct segments. Terminal sensoria on IV and V. 

 Eyes a group of 3 pigmented areas. 



Both the male and the female molt once before copulation. A single 

 egg is deposited, yellow and glistening with a downy white secretion. 

 The egg subsequently turns glistening black. 



EXPLANATION OF PLATE XVII. 



Fig. i. Oviparous female. On lilac, October, 1908. Actual length of 

 body 1.15 mm. 



Fig. 2. Male. On lilac, October, 1908. Actual length of body .74 

 mm. 



Fig. 3. Pupa. On ash, June, 1906. Actual length of body 2.66 mm. 



Fig. 4. Stem mother. Very young nymph. Collected from lilac, 

 May, 1909. Actual length of body, exclusive of beak, i.i mm. 



Fig. 5. Top of head and antenna of apterous viviparous form, full 

 grown stem mother. Actual length of antenna i.oi mm. 



Fig 6. Top of head and antenna of alate viviparous form, fall mi- 

 grant. Actual length of antenna 1.55 mm. 



Fig. 7. Wings of fall migrant. 



Thecla blcnina Heu>. (sk'a Edw.). This beautiful little species has 

 been recorded from Colorado, on the authority of Bruce, but little 

 seems to be known of its occurrence here. It is therefore worth while 

 to report that Mr. Nash took it in F'ueblo County many years ago; and 

 I have before me a specimen caught by Mr. S. A. Rohwer at Rifle, 

 July 3, 1908. T. D. A. COCKERELL. 



