256 ECONOMIC ENTOMOLOGY 



yellow; head black with two yellow spots between eyes; legs and under 

 side of body black. Feeds on plant-lice. Common. Egg stage lasts 

 about a week, larval stage about 3 weeks, and the pupal stage about a 

 week. One-eighth to one-fifth inch long (Fig. 188). 



Twice-stabbed Chilocorus {Chilocorus hivulnerus Muls.). — Wing- 

 covers black with a red spot near centre of each; head, thorax and legs 

 black; under side of thorax black, and abdomen red. Larva spiny; 

 pupa black and spiny. Feeds on scale insects and plant-lice (Fig. 188). 



Two-spotted Hyperaspis (Hyperaspis signata Oliv.). — Wing-covers 

 black with a red circular spot and a smaller yellowish spot on each; thorax 



Fig. 187. — The 15-spotted lady-bird in all its stages. Enlarged about 3 times. 



{After Britton.) 



and head black. In male the head and margins of thorax yellow. 

 Larva white and woolly. Feeds on cottony maple scale. 



Spotted Megilla {Megilla macnlataT)eG. = Megillafuscilabris Muls.). 

 — Wing-covers red with six black spots on each; thorax red with two 

 triangular black spots; head black with a red median stripe; legs and 

 under surface of body black. Larva blackish with white lines and 

 black spots. Feeds on plant-lice. One-fourth inch long. 



Pitiful Lady -bird (Pentilia misella Lee). — Black, small. Feeds on 

 San Jose Scale (Fig. 189). 



Convergent Lady -bird (Hippodamia convergens Guer.). — Wing- 

 covers reddish yellow with six black dots on each; thorax black with 



