COCCINELLID^. 513 



is sixteen-spotted, with tliree additional rows of dark spots 

 on the abdomen. The bod}^ is broad and flat, with a row of 

 three spines on each side of the abdomen, and is .40 of an 

 inch long. 



In Chilocorus the margin of the elytra is dilated, and the 

 lunate prothorax is rounded behind. C. hivulnerulus Mulsant 

 (Fig. 513) is black, with two yellow spots. 



The genus Scymnus is hemispherical, pubescent, with short, 

 abruptly clavate antenna. I have received from 

 Dr. II. Shimer the larva and adult of Scymnus cer- /^^jlH^ T 



vicalis Muls. which he found in the holes of insects 1 

 boring in the Prickly-ash. The body is subcylin- /^ 

 drical, pale whitish, much longer and slenderer and 

 narrower than in Coccinella, witli a small black round head ; the 

 legs are long and slender, more so than in Coccinella. The 

 rings are rather convex, not tuberculated above, 

 though provided with a few hairs. It is .12 of an inch 

 long. The beetle is reddish brown, with very dark 

 Fig. 5U. Prussian blue elytra, and is .10 of an inch long. 



Einlachna borealis Thunberg (Fig. 514) is yellowish, with 

 seven large black patches on each elytron. "The larvaa, 

 according to Osten Sacken, are common on the leaves of the 

 pumpkin. It is yellow, witli long, brown, branched spines, 

 arranged in rows of six on each segment, except the first tho- 

 racic segment, which has onl}^ four. The pupa instead of 

 spines has short bristles, especially on the thorax." 





Fig. 515. 

 The Pea AVeevil (enlarged). 



33 



