52 THE SAX JOSE OK CHINESE SCALE. 



brane, and the forming embryo showing through gives it a vellowish- 

 white color. The embryo with the envelop measures about 0.2""" long 

 by O.l™"" wide. 



Newly hatched larva. — The young larv« of both sexes are alike, and 

 are pale orange in color, with long oval bodies. They measure in length 

 about O.Sdt'"'^' by O.!'""" in width. The sucking bristles are normall}^ 

 doubled on themselves, but when unfolded are nearly three times the 

 length of the bodv. The antennae are apparently live-jointed, the last 

 two joints being much longer than the others,^ slender, subequal in 

 length, and both lineh^ and distinctly annulated. The last joint bears 

 a small nipple-like projection near the tip. The head is somewhat con- 

 cave in front, and the e^^es are nearly transparent and sliglith^ purplish. 

 The terminal segment of the abdomen foreshadows in structure the 

 plates and spines of the adult female. The large central plates each 

 terminate in a long hair. The tarsus is represented by apparent!}' a 

 single, strong, slightl}^ curved claw. The tip of the tibia bears exteri- 

 orly two rather long capitate hairs, and two similar hairs project also 

 from the inner extremit}^ Other details of structure are shown in the 

 illustration. 



LdTva of the second stage, — After the first molt the difference in the 

 sexes becomes apparent, altho the covering scales are still identical. 



The female insects are somewhat smaller than the males at this stage. 

 The eyes, legs, and antennae in this sex have entirely disappeared. The 

 form is almost circular, flattened. The color is 3'ellow, with irregular 

 transparent spots appearing in different parts of the body. 



The males are somewhat larger than the females, elongate, pyriform. 

 The -eyes are prominent, purple in color. The legs and antenme, as 

 with the females, are wanting. The general color of the body is 

 3^elIow, with the irregular transparent spots noted in the case of the 

 female. The greatest diameter in both sexes is less than one-half a 

 millimeter, and in the characteristics of the terminal segment both 

 agree, practically, with the adult female. 



Male pro-pupa. — With the second molt the male assumes a form 

 foreshadowing the true pupa, which may be called the pro-pupa." 

 The form is elongate oval; length 0.5'"'". The color is very pale 

 yellow, with the antennae, limbs, and wingpads, and two or three ter- 

 minal segments of the abdomen, colorless. The legs and antenns^?, as 

 noted, have reappeared, and also prominent pads foreshadowing the 

 wings of the adult. The e3'es arc dark purple and placed close together. 

 The antenna? are ver}^ stout, and curved closel}^ around the edge of 

 the l)odv as far as the anterior leg-s, where thev bend inward. The 



«The existence of a pro-pupa or a first pupal stage in the Coccid.e analogous to 

 the first pupal stage of higher Hemiptera has also been affirmed by Dr. Fr. Loew. 

 (Wiener Entom. Zeit., Jan., 1884, p. 13.) 



