59 Coleopterous Insects of Massachusetts. 
the lateral ones reduced to slight lines; base with two 
yellow spots: elytra finely punctured, half yellow and 
half black, the black color being disposed in two trans- 
verse undulating fascie, one on the middle and one be- 
hind it, the two laterally confluent : body beneath black : 
feet yellowish. 
Length from more than three twentieths to about 
three twentieths of an inch. 
This species is subject to great variation according to 
the greater or less predominance of either color in the 
elytra. The two extremes may be described under the 
following heads : 
A. where the elytra are wholly yellowish-testaceous. 
B. where they are nearly black. 
The thoracic spots are almost always present, though 
often faintly defined. It has only occurred on Chelsea 
beach, where it is at times found cast up by the waves. 
31. CoccINELLA LUGUBRIS. 
C. corpore nigro, rotundato, convexo, levi; margine thoracis albo ; 
elytris albo-bimaculatis, margine exteriori antice albo postice nigro; 
pedibus nigro-fuscis. 
Body black, rounded, convex, almost semi-globose, 
smooth; margin of the thorax white: elytra with a 
white spot placed near the middle, and another above 
the apex ; margin from the base to a little distance be- 
hind the middle with a white border, widened poste- 
riorly : feet blackish inclining to brown. 
Length rather above one tenth of an inch. = 
Occurred at Cambridge, Mass. rare. 
Nearly allied to the C. proba, Say ; it is a little larger. 
