COCCIDAE FROM LOWER CALIFORNIA 



127 



Aspidiotus pedilanthi n. sp. 



Fig. 48. 



Type from Pedilanthus macrocarpa ("candelilla") near Pescadero. 

 Also from Horsfordia sp. at San Pedro ; Franseria sp. at Todos Santos ; 

 Populus sp. at San Jose del Cabo. 



Habit. Occurring for the most part on the crowns of the host. Scale 

 of female circular, about 1.5 mm. in diameter, flat, gray, exuviae submar- 

 ginal, covered. Scale of male slightly elongate. 



Fig. 48. Aspidiotus pedilanthi n. sp. : pygidium and pygidial margin of specimen 

 from type host. 



Morphological characteristics. Adult female 1.6 mm. long, of the 

 normal turbinate form, menbranous or with the cephalothorax tending 

 to be somewhat chitinous. Margins of the adbominal segments without 

 ducts. 



Pygidium (Fig. 48) entirely without plates and with the lateral lobes 

 entirely obsolete. Median lobes prominent, straight, and with a distinct 

 subapical notch on the outer margin. First poriferous furrow with the 

 paraphyses well developed, the inner paraphysis distinctly clavate, the 

 outer straight and slender. Second furrow with the paraphyses quite 

 small. Tubular ducts quite small and slender, quite numerous, arranged 

 as indicated in the figure. Anal opening small, slightly cephalad of the 

 apex of the first paraphyses. Ventral side with a few very minute mar- 

 ginal and submarginal ducts. Paragenital pores lacking. Vaginal open- 

 ing flanked by a pair of elongated chitinized areas. 



