372 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



Scale of female. — The scale of the female is very convex, with the exuviae between 

 the center and one side, and covered with secretion. The scale is gray, somewhat 

 transparent, so that it appears yellowish when it covers a living female; the promi- 

 nence which covers the exuviae is dark brown or black, usually with a central dot 

 and concentric ring which are white. Ventral scale snowy white, usually entire. 

 Diameter 1^'"™ (.06 inch). 



Female. — The body of the female is nearly circular in outline, bright yellow in color 

 with more or less translucent blotches. The last segment presents the following 

 characters: The groups t)( spinnerets are wanting. 



Only one pair of well-developed lobes, the median, present. These are prominent. 

 Each one is furnished with a notch on each side; the notch on the mesal margin is 

 distad of that on the lateral margin. The second and third pairs of lobes are repre- 

 sented by the minute pointed projections of the margin of the body. 



The margin of the ventral surface of the segment is deeply incised twice on each 

 side of the meson ; ouce laterad of the first lobe, and again between the rudimentary 

 second and third lobes. The parts of the body wall forming the margin of these in- 

 cisions are conspicuously thickened. 



There are two simple tapering plates between the median lobes, two deeply and 

 irregularly toothed or branched plates extending caudad of each incision, one usually 

 simple and tapering plate between the incisions of each side, and two or three of the 

 same character laterad of the second incision. 



The first, second, and third pairs of spines of each surface are situated near the 

 lateral bases of the first, second, and third lobes, respectively; the fourth pair is 

 situated at a little more than one half the distance from the median lobes to the 

 penultimate segment. In each case the spine on the ventral surface is but little lat- 

 erad of the one on the dorsal surface. 



Egg. — The eggs and newly hatched larvae are yellow. 



Male. — Only dead and shriveled males have been observed. 



Hahilat. — On the bark of the trunk and limbs as well as the leaves and fruit of 

 various trees and shrubs in California and Florida. 



Described from seventy-five females and very many scales. 



I have named this the greedy scale insect on account of the great 

 number of plants upon which the species subsists. It also occurs in 

 some localities in great numbers, being very destructive. This is 

 especially the case on Euonymus japonicus at Fort George, Ela. ; and in 

 California on olive near San Buenaventura, and on mountain laurel 

 ( Umbellularia californica) at San Jos4. 



Mr. Elwood Cooper, of Santa Barbara, Cal., who has had some ex- 

 perience with this pest upon his olive trees, says that it is easily kept 

 in check. According to his observations it flourished only upon those 

 trees which are in an unhealthy condition, and as it is chiefly confined 

 to the trunk and limbs it can be removed with a stiff brush and whale- 

 oil soap solution. (Comstock Agr. Rep., 1880). 



The following insects also feed on the locust : 



COLEOPTERA. 



25. Spermophagus robinice (Fabricius). Family Bruchidce (see Horn, 



Trans. Amer. Ent. Soc, iv, 311). 



26. Agrilus egemis Gory. Mining under the bark of the twigs and 



smaller branches, the beetles eating the leaves. (Chittenden, 

 Ent. Amer., v, 219). 



