218 Annals Entomological Society of America [Vol. VII, 
have become orange and in addition the anterior and posterior borders 
of the pronotum have become yellow orange (pale), also dorso-lateral 
spots of yellow on posterior margin of metathorax, (which seems to be 
a distinguishing mark in this species) and faint yellow spots dorso-later- 
ally placed on fifth, sixth, and seventh segments, and whitish median 
line on all thoracic segments; length 8.5 mm. 
Pupa: Fig. 6, Plate XXXII. . 
Ground color amber yellow covered with black except median line 
of yellow throughout though somewhat broken at segment margins; 
pronotum bordered with black; wing pads black except light spot on 
shoulder, meso- and metathorax with pair of black spots, abdominal 
segments black except median area and yellow orange spots on first and 
fourth segments laterally placed, fainter ones similarly placed on fifth, 
sixth, and seventh segments; legs black; length 5.7 mm. 
Life cycle records were made as follows: 
Egg stage (3 records) 3-6 days. 
Larva stage (3 records) 21-23 days. 
Pupa stage (1 record) 8 days. 
Egg to adult, 32 to 37 days. 
From these figures it would appear that the life cycle of this 
species was considerably longer than in the other species studied. 
This may, however, be partly due to the fact that these records 
were all made in the latter part of the summer so that the beetles 
were overtaken by cool weather towards the end of the larval 
stage. 
In nature this species does not seem to be a very general 
feeder, being found, by Mr. Bragg, almost exclusively in the 
grass, or more especially on the Carex, feeding on Rhop. braggit 
Gill., and Callip., flabellus Sanb. In the breeding cage, 
however, it readily fed on Mac. rudbeckiae, Mel. Smithiae, Aphis 
cornifolit, Rhop. pastinaceae Linn., Aphis heraclet Koch, and 
Chait. populicola. 
Hippodamia parenthesis Say. 
This species :anks about equal with H. sinuata in economic 
importance. 
Aduli: Fig. 9, Plate XXXII. 
Head black with pale abbreviated median dash from the front and a 
spot next each eye, usually connected with median line, sometimes 
entire front portion of face pale; thorax black with anterior and lateral 
margins and median abbreviated acute line before white, also square 
spot at base; elytra pale reddish with yellowish area in middle of poster- 
ior half, marked with common large spot near the base connected with 
the scutel, and each with humeral spot, and pair of parenthesis shaped 
