—5— 



FF. Inner process largest; caudolaterals exceed five, 



medians less than six .fernaldi 



CC. Median lobes low and broad, scarcely if at all notched on 

 outer margin. 



D. With Ave groups ventral glands .juglans-regiae 



DD. Grouped glands absent. 



E. Chitinous processes of first incision equal; or outer 



one the largest conijerajum. 



EE. Inner chitinous process of first incision much the 



largest cueroensis. 



AA. Plates oftiMi. all or some of them, complex, more numerous and 

 forming a considerable fringe to anal segment. 

 B. With second and third lob(>s slightly developed. 



C. Apices of second and third lobes irregular; many-pointed 



semi-circular plates between lobes 3 and 15 tomstoiki. 



CC. Second and third lobes coming to definite points at inner 

 angles; at least two definite complex, l)ut elongated, 



plates between lobes 2 and o .jatrophae 



BB. Second lobes slightly developed, third lobiis rudinu-ntary. 



C. Ventral grouped glands present putiicae. 



CC. Ventral grouped glands absent Jiffinis var. lateralis * 



ASPIDIOTUS OSBORNI Newell and Ckll. 



Newell and Cockerell, Coccidae of Iowa by Osborn, Iowa Acad. 

 Sciences, Vol. V., p. 229, Des Moines, Iowa,.1898. 



Since the original description was written additional 

 material has come to hand and better apparatus for the re- 

 examination of the type specimens has been available. The 

 re-examination has made a few changes in the original 

 description necessary. In the language of that description 

 the word "spine" should be read in place of the word "plate." 

 A few minor differences will also be noted in the following 

 description: 



Female scale dark, very nearly color of bark of host, not 



♦Unfortunately specimens of mh^ A . diffiiiU var. lateralis are not at hand for ex- 

 amination. However, as Prof. Cockerell speaks of the presence of ventral grouped 

 glands as being an uncertain character for some species (Can. Ent. Vol. 25, p. 130), it 

 would seem that since both yjunicae and the var. lateralis have the form of the lobes 

 Identical (second lobe slightly developed, third rudimentary) he would have allowed 

 the latter to have remained a variety of imntcae where he tlrst placed it instead of 

 placing it as a variety of difflnis,-wh\ch in the typical form has all three lobes de- 

 veloped. 



