120 REPORT UPON A COLLECTION OF 



Habit. Occurring beneath the sheathing base of the leaves. Scale 

 of female 2.5 mm. long, elongate oval, white. First exuvium naked, 

 second white. Ventral scale continuous with the dorsal scale, thick, 

 composed in part of the ventral portion of the second exuvium. Scale of 

 the male of the type common to the genus. 



Fig. 41. Odonaspis Htorosa n. sp. : pygidium of adult. 



Morphological characteristics. Adult female (Fig. 42B) about 1.25 

 mm. long, elongate oval, derm membranous except for the pygidium and 

 the margins of the abdominal segments. Lateral margins of the ab- 

 dominal segments with great numbers of small ducts. 



Pygidium (Fig. 41) without definite lobes but with two pairs of 

 small and quite widely separated paraphyses. Dorsum with a great 

 number of small ducts. Anal opening quite small, somewhat cephalad of 

 the center of the pygidium. Ventral side with numerous small ducts, 

 these confined to a broad marginal zone. Circumgenital pores numerous, 

 arranged in three more or less confluent groups. 



Second stage with the ducts almost lacking, the pygidium (Fig. 

 42 A) with two pairs of paraphyses as in the adult and with a series of 

 acute points along the margin. 



First stage with the antennae (Fig. 42C) 5-segmented, the third 

 segment quite long, the terminal segment somewhat elongate and slight- 

 ly annulate; pygidium (Fig. 42D) with a single pair of small lobes. 



