New Sjyecles of Scale Insects. 387 



longer than the other four combined. Eyes large. Mesal 

 lobes prominent, notched on their lateral margin, and 

 with two long hairs projecting from between them. 



Mature male. — The mature male (Plate XXXII., Fig. 1) 

 is yellowish. Eyes prominent. Antennae prominent, and 

 of the form shown in the illustration. Body stout. Legs 

 loDg, and a little lighter yellow than the body. VYiugs 

 large, with w^ell -developed pocket for the reception of the 

 poiser. Thoracic shield with band distinct, and with 

 margins indistinct in some specimens. Length about .60 

 mm.; style .39 mm. 



Mature female. — The bod3^ of the mature female (Plate 

 XXXII., Fig. 2) is ovate, rather plump, and yellow. The 

 last segment is a little darker yellow than the rest of 

 the body, and presents the following characters (see 

 Plate XXXIL, Fig. 3): 



There are four groups of spinnerets, the number in each 

 group being extremely variable. The anterior laterals 

 vary from five to seventeen, the average being about 

 ten ; while the posterior laterals vary from four to eleven, 

 the average being about seven. The number is variable 

 on opposite sides of the same individual. There is only 

 one pair of lobes. They are nearly as broad as long and 

 notched on their lateral margin near the tip. Plates, 

 simple and inconspicuous; one usually just laterad of 

 the lobe, and two between the second and third spine. 

 Spines prominent, arranged as shown in the illustration, 

 and usually one pair on each segment. A rather deep 

 incision just laterad of the lobe. Anal opening about 

 twice as distant from the base of the lobes as the lobes 

 are long. Curious club-shaped organs, as shown in fig- 

 ure, about which the spinnerets are grouped. 



Found by the writer on buckeye, ^sculus californica, 

 at Stanford University, California. 



Types in collections of the Illinois State Laboratory of 

 Natural History and of the United States National 

 Museum, and in the author's collection. 



