116 



REPORT UPON A COLLECTION OF 



Pygidium (Fig. 36) with the median lobes alone well developed, 

 these large, low and broad, with the tips rounded and slightly crenulate. 

 Second pair of lobes represented merely by a small, toothlike projection. 

 Between the first and second lobes is a small gland spine and a pore 

 prominence bearing a rather large pore with chitinous rim. Beyond the 

 second lobe are two large gland spines followed by two gland promi- 

 nences bearing large pores with chitinous rims, then a spine, two more 

 large gland spines, two large submarginal pores, a spine, two gland 

 spines, and another submarginal pore. All the submarginal pores with 

 conspicuous chitinous rims. Dorsal ducts Considerably smaller than 

 those of the margin, rather few, arranged as indicated in the figure. 

 Microducts very small. Anal opening large, quite close to the anterior 

 margin of the pygidium. Ventral side with three rows of very small 

 ducts. Circumgenital pores in three groups, the cephalic group with 5-6 

 pores, the others with 10-20. 



Notes : This determination has been confirmed by Mr. Morrison who has 

 compared specimens with the mounts from the type material in the National 

 Collection. 



Lepidosaphes obtecta n. sp. 



Figs. 37, 38. 



Type from A triplex sp., at La Paz. Also from a species of Acacia 

 or Mimosa and from Fouquieria peninsularis ("palo de Adan") at La 

 Paz. 



Fig. 37. Lepidosaphes obtecta n. sp. : pygidium of adult. 



