THE CANADIAN ENTOMOLOGIST. 189 



black anal plate with pair of terminal spines. Segments 4-5 annulate, 

 smooth, slightly shining, the tubercles obsolete dorsally, but represented 

 laterally and subvenlrally by large, smooth, rounded, shining black 

 prominences, largest subventrally. A dorsal and subdorsal row of round 

 black spots with irregular edges, four on each segment in a straight, even 

 line, not shining like the subventral tubercles. Body light green ; joints 

 2, 12 and 13 posteriorly orange. Venter orange-tinted. Thoracic feet 

 black, except at the joints ; abdominal ones green. 



Larvae entered the earth without moulting and formed thin, elliptical 

 black cocoons of uniform close texture. Size, 6 to 7 x 2.5 to 4 mm. 



Larvas at Wood's Holl, Mass., in July and August. 



FURTHER NOTES ON SCALE INSECTS (COCCID^). 



BY T. D. A. COCKERELL, LAS CRUCES, NEW MEX. 



The numbering of these notes is continued from p. 132. 



(9.) Chionaspis ortholobis, Comst. In the middle of March Prof. 

 Bruner sent me a Chiojiaspis, which he said was common on cotton- 

 wood in Nebraska, being also occasionally found on the white willow. 

 It appeared to me to be a new species, and I was about to name it after 

 its discoverer, but Mr. L. O. Howard, to whom I had sent specimens, 

 delared it was ortholobis. This I could hardly believe, as both $ and $ 

 scales disagreed with Com stock's description of C. ortholobis, so I wrote 

 disputing the point, and enclosing further specimens. In due time came 

 a letter stating that both Mr. Howard and Mr. Pergande had taken great 

 trouble to examine numerous specimens and compare them with Com- 

 stock's types, and that the identity was practically certain. 



The fact, therefore, appears that the original description was inade- 

 quate and somewhat inaccurate or misleading, so to save others from the 

 mistake I came so near making, I append details of the Nebraska 

 specimens. 



$ Scale snow-white, broadly mytiliform, slightly convex, straight or 

 somewhat curved, tapering anteriorly; exuviae yellowish-white, incon- 

 spicuous. Removed from the bark, the scale leaves a white mark, the 

 so-called ventral scale. (Compared with English C. salicis received from 

 Mr. Newstead, our species is quite different; the scales of salicis are 

 smaller and broader, and not so white, and they have conspicuous 

 orange or orange-brown exuviae. C. salicis from Rouen, France, received 

 from Mr. Morgan, is the same as the English form.) 



