37 8 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



Lepidosaphes Shimer. 

 Mytilaspis Signoret. 



Scale of female elongated, secreted posteriorly, narrowest at 

 anterior extremity where exuviae occur. Male scale similar 

 though smaller. Pygidium of female usually with five groups of 

 circumgenital gland-orifices. 



Key to Species. 



i. Female scale three to five times as long as broad; median lobes 



more or less pointed 2 



Female scale two or three times as long as broad; median lobes 

 broad and prominent, notched on each margin 3 



2. Female scale about five times as long as broad; median lobes dis- 



tinctly pointed, the margins scarcely serrate gloverii 



Female scale about three times as long as broad; median lobes 

 obscurely pointed, margins distinctly serrate beckii 



3. Circumgenital gland-orifices 33 to 48 in number ulmi 



Cicumgenital gland-orifices 15 to 32 in number newsteadi 



L. beckii (Newman). Mytilaspis citricola. Purple scale. 



The Entomologist, iv, 217, 1869. 



Scale of female: Length 2.8-3.4 mm., brownish purple, long 

 and slender, broadened posteriorly; exuviae somewhat lighter, 

 scale often curved. 



Female: Median lobes obscurely pointed with serrate margins. 

 Second lobes are deeply incised, the outer lobule being much the 

 smaller, the inner and larger lobule is notched or serrate, the outer 

 smooth or serrate. Median group of circumgenital glands, 5-7 ; 

 anterior lateral, 12-18; posterior lateral, 8-10. 



Scale of male : Length 1.5 mm., of same color as that of female, 

 but narrower and less curved. 



This scale commonly infests citrus trees in the South and is fre- 

 quently seen on oranges, lemons and grape fruit in our markets. 

 It also attacks citrus trees in greenhouses. 



Bozrahville, 24 Feb., 1902; New Haven, 21 Mar., 1910; Naugatuck, 17 

 Dec, 1910; Cromwell, 11 Mar., 191 1; Meriden, 16 Apr., 1915. 



L. gloverii (Packard). Mytilaspis gloverii. Glover's scale. 



Guide to the Study of Insects, Edn. i, 527, 1869. 



Scale of female : Very long and narrow, light yellow varying to 

 dark brown. 



Female: Median lobes abruptly narrowed on outer margins, 

 then prolonged into points apically ; margins scarcely serrate ; 

 second lobes longer and narrower. Arrangement of circumgenital 

 gland-orifices : median, 5 ; anterior lateral, 1 1 ; posterior lateral, 5. 



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



On citrus trees and citrus fruits in our markets, often associated 

 with L. beckii. 



