No. 34-] HEMIPTERA OF CONNECTICUT: COCCIDAE. 379 



L. newsteadi (Sulc). Mytilaspis newsteadi. (PL xv, 7.) 



Sitzb. K. Bohm. Ges. Wiss., No. xlix, 8, 19, 1895. 



Scale of female: Length 1.5-2 mm., very broad posteriorly, 

 gray with whitish margins, dull,; exuviae yellowish brown. Sulc's 

 description states "scale of the female also brown, but longer and 

 with more parallel sides than in pomorum" (ulmi). 



Female : Median lobes broad and prominent, well separated with 

 straight and parallel sides, rounded apically with a distinct notch 

 on each margin, though varying greatly ; second pair smaller and 

 the third pair rudimentary. Five groups of circumgenital gland- 

 orifices, median 1-7; anterior lateral, 7-13; posterior lateral, 7-12. 



Male : unknown. 



On umbrella pine, Sciadopitys verticillata. 



Hartford, 3 Feb., 191 5. 

 L. ulmi (Linnaeus). Mytilaspis pomorum. Oyster-shell scale. 

 (PL xv, 8; eggs, PL xix, 8.) 



Syst. Nat, Edn. 10, 69, 1758. 



Scale of female: Length 2.5-3 mm., brown, narrow, broadened 

 posteriorly, shining; exuviae yellowish or yellowish brown. 



Female : Median lobes are broad and prominent, well separated 

 with straight and parallel margins, rounded apically with promi- 

 nent notch on each margin. Second lobes with larger inner 

 lobules, rounded apically, entire ; third lobes rudimentary. Five 

 groups of circumgenital gland-orifices; median, 9-12; anterior 

 lateral, 15-21; posterior lateral, 9-15. 



Scale of male : Similar to that of female except smaller. 



This scale has long been considered a pest of apple orchards in 

 the northern states, and it also attacks poplar, willow, lilac, ash, 

 butternut, Cornus and many other trees and shrubs. It passes the 

 winter in the form of white eggs under the female scales. These 

 eggs are laid about October 1st and hatch about June 1st. Spray- 

 ing with kerosene emulsion about June 10th will readily kill the 

 young. 



Occurs throughout the state. There are more than 250 records in the 

 State Entomologist's office, representing nearly 100 towns. 



Ischnaspis Douglas. 



Scale very long and narrow, pygidium with peculiar lattice-like 

 thickening, and three groups of circumgenital gland-orifices. 

 Only one species occurs in our region and that is found in green- 

 houses. 



I. longirostris (Signoret). filiformis. Mytilaspis longirostris. 

 Thread scale. (PL xv, 9.) 



Bull. Soc. Ent. Fr.„ ii, xxxv, 1882. 



Scale of female : Length 2-3 mm., extremely narrow ; about 



