COLEOPTEROUS INSECTS PREYING UPON BARK-LICE. 



73 



THE BLOOD-RED LADY-BIRD (Cycloneda sanguined, Linn.). (Fig. 30, 

 larva : Fig. .'51, pupa; Fig. 32, adult beetle, enlarged and natural size.] 



FIG. 30. Cycloneda, 

 larva enlarged. 

 ( After Comstock.) 



Fit;. SI. Cycloneda san- 

 guinea, pupa enlarged. 

 (After Comstock.) 



FIG. 32. Cycloneda sanguined 

 natural size and enlarged. (Af- 

 ter Comstock.) 



As its name indicates, the color of this species is orange-red or blood- 

 red, varying somewhat in individuals. The head and thorax are black, 

 each with a pair of yellowish spots ; the thorax is also bordered with 

 yellow. Length 5 mm ($> inch). The larva is of a more elongate form 

 than the preceding species ; the body not armed with spines, but with 

 rows of small tubercles bearing tufts of short hairs. The colors are 

 bluish-black spotted with orange. 



The pupa is orauge yellow, clouded and spotted with dusky brown or 

 black. 



This is a most common and widely-distributed species, extending 

 even to California, where, however, it is said to be less abundant than 

 in the East. Like most of the species, it is not connected with any 

 particular plant, but is found wherever Plant-lice occur, feeding upon 

 their honey-dew in preference to Bark-lice or other insects, but not sel- 

 dom attacking the Orange Scale-insects when the Aphis is not at hand. 

 It is a sun-loving species, and is most active and voracious in the hot- 

 test weather. 



HIPPODAMIA CONVERGKENS Guer. (Fig. 33, larva, pupa, and adult ; 

 Fig. 34, beetle, enlarged.) This species is also com 

 mon from the Atlantic to the Pacific, and every- 

 where feeds voraciously upon the various species 

 of Aphis and Bark-lice. Its^ving-cases are orange, 

 red, with five or six rather small black spots on 

 each, but the remainder of the body is black. The 

 head has a white crown and the thorax is edged 

 with white and has two converging dashes or short lines of white upon 

 the disk. 



The pupa is orange-red, of the same shade as the wing-cases of the 

 adult, and has upon its surface a varying number of black spots. The 

 spots are in some individuals entirely wanting, but three spots upon 

 each wing-pad and at least one pair upon the first abdominal joint are 

 very rarely absent. The surface of the pupa is without spines or hairs. 



FIG. 33.Hippodamia con- 

 vergens. (After Riley.) 



