NO. i:«i2. . I fJlvnoDIDS OF < '. I LIFonMA — BKMlS. 588 



Tho doi'suiii hears a coMspicuously Ion*;- sulnuaroiiuil fringe, which 

 rises ahnost perpendicularly from the case to a coMsi(lerat)h' distance; 

 it is then cur\'cd outward and downward until the distal ])Oi'tion rests 

 upon the leaf. This frin<^-e is made up of appressed, slender, crystal- 

 liiH' rods which form a solid riuo- al)()\e the case. t)ut is l)roken into 

 irre<4u]ai' plates after curving downward. The arrangement and 

 length of this fringe is characteristic of .1. Inifc/i!ii</s!, and makes it 

 one of the most imi({U(^ and heautiful of the Califoi'nian Aleyrodida\ 



Within the circle of sul>marginal fringe tiie (h)rsum is sometimes 

 covered with a thin, p(dlucid coat of wax; this coating frecpiently 

 extends over the hitcu'al and xentral portions as well, thus completely 

 inclosing the case. This w^ax covering is proba])ly protective, as the 

 author found it on a number of species collected in Yosemitc Valley, 

 which in lower altitudes and a warmer climate were without it. This 

 dorsal wax is tilled with minute dots, Avhich dou))tless is Init an impres- 

 sion of the underlying wax-secreting tubes. 



On the majority of the specimens the dorsal wax coat was gi-amdar; 

 usually this granular wax w^as thicker in a strip along the dorso-medial 

 line and in a ring inclosed ])y the submarginal fringe. 



The dorsum has a narrow marginal rim, within which the lateral 

 wax tubes are evident; the outer margin of the case is but slightly and 

 irregularly crenulated; inside of the marginal rim, and extending 

 around the case, there are about three in-egular rows of closely set 

 papilliv from which issues the submarginal dorsal fringe; scattered 

 among the papilUe are a large number of small pores. Between the 

 dorso-submarginal papilla' and the central dorsum the case is covered 

 with minute papilla?. The al)domen has a slight keel, along which the 

 segmentation is distinct. On each of the abdominal segments there are 

 two small pores; these are arranged in two parallel lines, one each side 

 of thedorsi-meson. Lateral of these pores there are occasionally seen 

 irregular groups of from two to three pores; on the meta-thorax there 

 is a transverse row of small pores. Caudad of each abdominal suture 

 there is a pair of subcircular spaces which are somewhat more highly 

 chitinized than the surrounding dorsum; these spaces are also usually 

 slightly wa-inkled in appearance. The thoraco-abdominal suture is 

 distinct and extends to the su'omarginal papilhe. 



The vasiform oritice is distinctly outlined l)y a dark rim, shape, 

 subovate, the inner lateral and caudal margins nuich corrugated, the 

 caudal end broadly lounded, or. in some specimens, indented and with 

 a finger-like process projecting caudad from center. Oi)erculuni. sub- 

 semielliptical, about one-half length of oritice. Lingula. about four- 

 tifths the length of oritice, subspatulate, the distal portion with three 

 pairs of lateral lobes and a terminal lobe. Just cephalad of the vasi- 

 form oritice there are two crescent-shaped thickenings of the tergum 

 of dorsum. Latero-cephalad of the t)ritice on each side is a small pore. 



Proc. N. M. vol. xxvii— OH- H7 



