SECRETARY'S REPORT. 145 



aphis. Figure 20, (^Ilarr.') represents the larva some- 

 what magnified ; the pcrpendicuhir line at its right 

 exhibits the natural length ; it is of a bluish black, 

 spotted with orange ; after arriving at its full size in 

 this stage it glues its anal apex to the under-side of a 

 leaf or other suitable object, and with its head hang- Fig. 20. 

 ing downward, shakes off its skin and appears as represented 

 in the upper part of figure 21, Ilarr., the pupa suspended from a 

 leaf; in the course of a few days the pupa-skia 

 splits open and the imago, shown in the lower 

 part of the same figure, escapes. This, like the 

 majority of the family to which it belongs, is of 

 hemispherical or half-globe shape, about the size 

 of half a pea ; its head is whitish above, thorax 

 white before, with a black band across it behind, ^'^' ^^' 

 sometimes sending from its middle two black tooth-like spots, 

 toward the head ; the elytra are dull orange, with a narrow 

 dark suture halving a rhomboidal or diamond-shaped black spot 

 just behind the thorax; on each elytron four black spots, the 

 two nearest the anterior margin being the smallest, and the one 

 nearest the apex usually the largest ; feet and body beneath 

 black, except two or three small whitish spots on each side of 

 the thorax. It measures .25 or less in length, and about .20 in 

 breadth. 



Coccinella irifascidta of Linnaeus, or three-banded lady- 

 bird, (figure 22,) is marked upon the thorax much like 

 the last, but the head is black with two white spots on 3^v^ 

 the vertex ; in many specimens these white spots unite /^^ 

 in one, and form a transverse band between the eyes; Fig.22. 

 the elytra are rather lighter in color than in the nine-spotted 

 lady-bird, and each crossed by three black bands ; the ones 

 immediately behind the thorax meet at the suture, the others 

 are shorter, but none of them reach the outer edge of the 

 elytron ; the body beneath is black, with one or two small white 

 spots on each side of the thorax ; the feet also black, and the 

 length is scarcely .20, breadth .15. 



Coccinella bipunctdta of Linnasus, or two-spotted lady-bird, 

 is very numerous in the city of Boston and vicinity, where the 

 shade trees furnish a large supply of its favorite food, the 

 plant-lice. Its head is whitish, eyes black, and between them a 



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