138 KANSAS UNIVERSITY SCIENCE BULLETIN. 



Described from ten mounted specimens from Pi7ius and orchid 

 from Ceylon and Japan, with Comstock's (1883) , Newstead's 

 (1901) and Signoret's (1869) descriptions at hand for refer- 

 ence. 



pergandei Comst. Plate XXV, figure 2. 



Pergandei has four groups of circumgenital glands. There are 

 three pairs of well-developed lobes, trilobate in form. The 

 rudimentary fourth lobe is present but not nearly so well de- 

 veloped as in zizyphus. It is often only a pointed prominence 

 of the body w^all, bearing a spine. The rudimentary fifth lobe 

 is also present and similar in form and degree of development 

 to the fourth lobe. The marginal-gland orifices are situated as 

 in zizyphus and the chitinized disks are present. The plates 

 are similar in form and position to those in zizyplius. The dor- 

 sal glands are the same in nature and arrangement as those in 

 proteus. 



Food-plants : Orange, lemon, and japonica. Habitat : 

 Mexico, Japan, Hawaiian islands, Algeria, Europe, and south- 

 ern United States. 



Described from eleven mounted specimens from material on 

 orange from China, Florida, and Lawrence greenhouse, wath 

 the original description of Comstock (1881), and also New- 

 stead's (1901) description at hand. 



mytilaspiformis Green. Plate XXVI, figures 1 and 2. 



Mytilaspiformis has four groups of spinnerets or circumgeni- 

 tal glands. There are three pairs of well-developed lobes, trilo- 

 bate in form. The rudimentary fourth and fifth lobes are very 

 variable, being found present in some specimens and absent in 

 others, even being present sometimes on one side and absent 

 on the other in the same individual. The marginal glands and 

 plates are found the same in form and position as in zizyphus 

 and in proteus. The form and arrangement of the dorsal glands 

 are the same as in proteus. 



Food-plants : Psychotria thwaitesii and tea plant. Habitat : 

 Ceylon. 



Described from four mounted specimens from material re- 

 ceived from Green, together with his (1899) original descrip- 

 tion and figure. 



