COCCIDAE FROM LOWER CALIFORNIA 



99 



Pygidium (Fig. 19) quite large, with the median lobes alone devel- 

 oped, these broad, low, rounded at the apex and close together. A short, 

 club-like paraphysis extends into the pygidium from the base of each lobe. 

 Beyond the first lobes is a gland pore followed by a slender paraphysis, a 

 small spine, a small gland spine, two gland pores, a spine, a gland spine, 

 two deep and quite widely separated notches with a pore at the base, a 

 spine, a gland spine and another slight notch with a pore. The inner 

 extremity of the paraphyses is heavily chitinized, presenting a lunate 

 form. Marginal tubular ducts quite large, their pores without a chitin- 

 ized rim. Dorsal ducts very few, smaller than those of the margin. On 

 each side there are three or four long, slender microducts. Ana^ opening 

 very small, close to the apex of the pygidium. Ventral side apparently 

 without ducts or pores. 



Notes : The above description is based upon a single specimen from the 

 type lot, received through the kindness of Professor Cockerell. The species has 

 not been recorded from Lower California but it undoubtedly occurs on the penin- 

 sula and I take this opportunity of redescribing it. The available specimen is 

 in very poor condition for study and it is possible that the examination of more 

 material will require some modifications in the description. 



Pseudodiaspis elaphrii n. sp. 



Figs. 20, 21. 



Type from Elaphrium microphyllum ("torote") at Cabo San Lucas. 



Habit. Found on the bark of the host. Scale of the female about 



2 mm. in diameter, circular, flat, gray, with the exuviae central and entirely 



covered by secretion ; ventral scale lacking. Scale of male not observed. 



Fig. 20. Pseudodiaspis elaphrii n. sp. : pygidium. 



