368 THE COCCIDAE 



for changing the name of his species and restored the original name 

 of the insect, Fiorinia fioriniae. There was at this time a rule of 

 the British Association code, which was generally followed in mat- 

 ters of nomenclature, prohibiting the use of the same word for both 

 generic and specific names. Comstock consequently renamed the 

 genus after one of the early American entomologists who had 

 made a special study of the Hemiptera, Philip Uhler, designating 

 the genus Uhleria. This rule regarding the use of the same word 

 for both names of an animal was afterwards rescinded and the 

 species of Targioni Tozzetti is now known as Fiorinia fioriniae. 

 The camelliae of Comstock has also been shown to be the same as 

 the fioriniae of Targioni Tozzetti. The selection of a vernacular 

 name for the insects of this tribe has been a difficult one. It was 

 finally decided to form a name out of the generic name of Com- 

 stock and call them The Uhlerian Scales. 



Leonardi included the genus Fiorinia together with the genera 

 Mytilaspis and Ischnaspis in the tribe Mytilaspides in his original 

 subdivision of the subfamily Diaspidinae published in 1898. In 

 the same volume, where there is given the first statement of his 

 monograph of the Mytilaspides, he states that the following table, 

 one to genera and subgenera, relates only to the genus Mytilaspis, 

 because he combines Ischnaspis with this genus, rather than to the 

 Mytilaspides and that the lacking genus Fiorinia will be considered 

 a little later. The Mytilaspides was published in 1903 in which 

 he states, to translate the thought rather than the words, the 

 group Mytilaspides is conveniently distinguished as two sections, 

 one formed from the species of the genus Mytilaspis and the other 

 from the species of the genus Fiorinia. The essay on the classifi- 

 cation of the Fioriniini, ' ' Generic e Specie di Diaspiti. Saggio di 

 sistematica delle Fioriniae" was published in 1906. In this re- 

 vision four genera and twenty-two species are recognized, while 

 ten unidentified species are referred to the tribe. 



The scale of the adult female is elongate, two or more times 

 as long as wide, and usually narrow. The two sides are usually 

 parallel or subparallel, but in certain species the caudal end is 

 widened so that the scale is distinctly pyriform. The scales are 

 generally some shade of brown or yellow, but in some species are 

 opaque white. The surface of the scale is generally flat or slightly 

 convex externally, but may be slightly carinate. The exuvia 

 of the first nymph is always placed at the cephalic end so that 

 it projects beyond the scale for at least one-half the length of 



