60 



INSECTS AFFECTING THE ORANGE. 



plate, however, is larger, and shows two nuclei, and is evidently two 

 plates joined together. Antenna 6 jointed, and proportioned as with 

 C. Floridcmis. Less long; tibiae nearly twice as long as tarsi ; digitizes 

 of the claw very large. The other tarsal pair veiy long and slender, 



but with a very large button. The skin is 

 seen in places to be furnished with many 

 minute, round, transparent cellules, prob- 

 ably spinnerets (indicated and so called by 

 Signoret in his description of C. Vinsonii), 

 and along the border are small groups of 

 the constricted arrow-shaped tubercles men- 

 tioned in the last species; but the bristle- 

 shaped spinnerets seem to be wanting, as in 

 C. Fairmairii Targ. 



." The Eyys. Length, 0.3o mm , rather slen- 

 der, little more than a third as thick as long. 

 Color light rt-ddish brown, rather darker 

 than the egg of C. Florid ensis. 



u Youny Larva. Very slender; dark brown 

 in color; legs and antenua3 as with C. Flori- 

 den sis. 



" Growth of the Insect. The growth of the 

 insect and the formation of the waxy cover- 

 ing seems to be very similar to that of the 

 last species. Soon after the larva settles 

 the same two dor>al ridges of white secre- 

 tion make their appearance, but soon split 

 up into transverse bands. Examined on 

 the fifth day after hatching, a larva showed 

 (Alter seven distinct transverse bands, the ante- 



. . . . . . 



nor one being in the shape of a horseshoe. 

 At the same time the lateral margin of the body was observed to be 

 fringed with stiff spines, seventeen to a side. At nine days the small 

 horse shoe like mass had extended so as to nearly cover the thorax, and 

 the transverse bauds had lengthened and widened until they presented 

 the appearance of a nearly complete shield to the abdomen, serrate at 

 the edges. Fifteen lateral tnfts, such as were noticed in C. Floridensis, 

 and such as Targioni figures in the larva of C. rusci (Stud. Sulle eoc- 

 ciniglie, Plate 1, Fig. G) had appeared, though still small. 



" At this stage of growth, as with the last species, all development 

 seemed to stop, although the specimens lived on for months, the tem- 

 perature in the breeding-room, probably not being favorable to the for- 

 mation of the plates. 



"The smallest specimen in the collect ion with theplates already formed 

 measures L >mm long by 2 mm wide and l mm high. The, color is light brown, 

 and the wax has a sornewhac translucent appearance. The dorsal plate 



Comstock. Adult fi-mali'H, 



8iz.- ; a, female, enlarged. 



Comstock.) 



