ZOOL— Vol. II.] KUIVANA— CALIFORNIA N COCCIDM. 4OI 



Ripersia festucae, sp. no v. 



Plate XXV, Figs. 11-16. 



Adult Female. — Elongate-elliptical in form, covered with white powder; 

 sac suboval or round, about 2 mm. long, loosely woven, composed of long 

 white wool. 



Body about 3 mm. long and one-third as wide as long, with short spiny 

 hairs on dorsal surface. (After being boiled in hot water in order to take the 

 waxy substance off, the color was darkish purple; legs and antennae pale 

 brown.) Antennas seven-segmented,^ each segment with a few spiny scattered 

 hairs; seventh segment usually longest, second next in length, fourth, fifth, 

 and sixth usually subequal. There is quite a variation in the segments even 

 in the same insects, as shown in the following formulae: — 



7, 2, I, 4 (5, 6) ^ / 



, , , ( one specimen. 



7, 2, I, 6 (3, 4) 5 ^ 



7, 2, I, X (4, 5, 6) / 



' sZ , ^ r one specimen. 



7 (I, 2, 3) 6 (4, 5) ^ 



7, 2 (I, 4) (3, 6) 5 I 



'' ' \, ,, \ one specimen. 



7, (I, 2, 4) (3, 5, 6) ^ 



Legs large and well developed; coxa stout, almost as wide as long; tro- 

 chanter triangular in form; femur very long, .16 mm. long, .05 mm. wide; 

 tibia smaller than femur, about .18 mm. long; tarsus about .06 mm. long; 

 claw about .02 mm. long, and rather stout; digitules of tarsus knobbed, long, 

 and moderately stout; those on claw short and extending slightly beyond the 

 claw. Anal ring with six hairs. 



Egg. — The egg is smooth, elliptical in form, .33 mm. long, .21 mm. wide; 

 color purple. 



The Newly Hatched Larva. — Body subelliptical, very pale brown, .85 

 mm. long, .46 mm. wide, anterior end subparabolic. Antennae very large, 

 six-segmented, with a few scattered hairs; sixth segment longest, third next 

 in length, first, second, and fifth subequal, fourth shortest, — formula 6, 3, 5, 

 2, I, 4. Eyes inconspicuous. Mouth-parts well developed. Legs stout, 

 well developed; coxa very stout, wider than long, with a few spiny hairs; 

 trochanter triangular, with single short spiny hairs; femur the longest segment 

 of the leg, but slightly narrower than the coxa; tibia shorter than femur and 

 very much smaller, with a few short spiny hairs; tarsus shorter than tibia, 

 tapering toward extremity, finished with a few spiny hairs, and four knobbed 

 hairs, of which the lower pair are shorter, and with a short rather stout claw. 

 Abdomen consists of nine segments, posterior end deeply emarginated, a 

 long hair and a few spines on each projecting part. Anal ring with six long 

 hairs. 



1 One specimen examined had one antenna seven segmented, the other, only six- 

 segmented,^ formula ( , ' s ,' , s 

 ' 7. 2 (I, 3) 6 (4, 5) 



