118 



REPORT UPON A COLLECTION OF 



First stage with the antennae (Fig. 38D) 5-segmented, the terminal 

 segment neither elongate nor annulate, the pygidium (Fig. 38B) with a 

 single pair of rather large lobes. 



Notes: This is a very peculiar species of doubtful affinities that I place 

 in Lepsidosaphes only because of the lack of a better place. 



Lepidosaphes peninsularis n. sp. 



Figs. 39, 40. 



Type from Porophyllum gracilis ("yerba del venado") between La 

 Paz and San Pedro. Also from the same host at Agua Caliente; Asc- 

 lepias subulata at La Paz and San Jose del Cabo; undertermined Eu- 

 phorbiaceous shrub at La Paz. 



Fig. 39. Lepidosaphes peninsularis n. sp. : pygidium of adult. 



Habit. Occurring on the stems and leaves of the host. Scale of 

 female of the form common to the genus, about 3 mm. long, straight, 

 white, or slightly brown ; exuviae covered with secretion. Scale of male 

 similar to that of female but smaller. 



Morphological characteristics. Adult female (Fig. 40A) about 2 

 mm. long, derm membranous except for the pygidium; margins of the 

 abdominal segments projecting but little, without gland spines but with 

 numerous small ducts. Dorsum of the abdomen practically without 

 ducts. 



Pygidium (Fig. 39) rounded, with two pairs of lobes. Median 

 pair widely separated, short, rounded. Second pair small, distinctly 



