88 WHITE PINE LEAF-LOUSE. 



develop the scales which cover them, they can be distinguished at 

 a glance by the characteristic difiyrences in their respective scales 

 which we have described above. The female never afterwards 

 leaves the scale, but attaches herself to the surface, on which she 

 rests by means of a slender, hair-like proboscis or sucker, which 

 we have particularly described in a former article when speaking 

 of the Apple-tree species. She increases in size in proportion as 

 she enlarges her protecting shield, and presents the appearance of 

 a soft, wrinkled, footless, and apparently almost lifeless grub. 

 She, however, fulfills, infallibly, if she be not interrupted, the few 

 but paramount laws of her being, attains her normal development, 

 in due time becomes impregnated, and shortly after deposits her 

 eggs and perishes. With such unerring certainty does nature con- 

 duct her operations, in her lower walks, where she reigns supreme. 



Fixed immovable to the surface on which she reposes, and hid- 

 den from view beneath the shadow of her vaulted carapace, but 

 dimly conscious, we may presume, of some unfilled requirement 

 of her being, the helpless female Coccus awaits the addresses of 

 her unknown and invisible paramour. Nor does she wait in vain. 

 Of all the countless myriads of these lowly creatures which congre- 

 gate upon the bark of the apple tree, or whiten with their spotless 

 phylacteries the foliage of the pine, not one, so far as we know, 

 fails to be called to enact the ofiices of maternity. Nature, in the 

 universality of her providence, takes them in her charge and min- 

 isters to their necessities, and no unloved or unfruitful virgiu is 

 permitted to languish in the halls of the Coccidce. 



At the same time that I was making my observations upon this 

 insect, my friend, Mr. 0. V. Riley of St. Louis, succeeded also in 

 obtaining the perfected and hitherto unknown male of this species. 

 The engraving at the head of this article, is the one preoared by 

 Mr. Riley from his specimens, with a copy of which he had the 

 kindness to furnish me. 



The following is a description of the male of this species. 



Length, one quarter of a line, or about one fiftieth of an inch. Color, pale red. 

 Antennje as long as the body, ten jointed, counting as two the stout, basal, indistinctly 

 bi-articulated joint; the other joints elongate, somewhat equal, except the last which is 

 a little more than half as long as the preceding, each joint with a number of bristles 

 more than half its own length. Eyes prominent, black, with comparatively few facets. 

 The three segments of the thorax well developed. Meso-thorax somewhat elevated above. 



