OF THE FAMILY COCCIDAE 159 



KEYS 



As is the case with the preceding descriptions of the species studied, the following 

 keys contain many more characters than would eventually be necessary for the 

 purposes of identification. However, it is considered wise to follow Ghauri (1962) 

 and compile detailed keys because (i) they constitute provisional definitions of the 

 spuraspecific categories and (ii) because there is little doubt that some of the 

 characters will eventually prove to be insignificant at the taxonomic levels at which 

 they are employed here. It is clear from the following keys that both higher and 

 lower taxa can easily be separated. 



Key to the Groups of Genera 



With fleshy dorsal head setae, setae between and behind the ventral simple eyes, 

 genal setae, fleshy postmesospiracular setae, antemetaspiracular setae and fleshy 

 dorsospiracular setae all present ......... 2 



With fleshy dorsal head setae, setae between and behind the ventral simple eyes, 

 genal setae, fleshy postmesospiracular setae, antemetaspiracular setae and fleshy 

 dorsospiracular setae all absent ......... 3 



Antenna shorter than posterior leg ; midcranial ridge ventrally complete ; with 4 

 simple eyes ; presternum not spinose ; scutellum tubular, usually more than 3 

 times (range 2-8-4-1) as wide as long ; basalare not joining pleural wing process 

 to mesepisternum ; median ridge of basisternum complete ; anterior metasternal 

 setae more than 36 ; wings usually less than 2 J times (range 1-9-2-3) longer than 

 wide ; with pleural sclerotization only on 7th abdominal segment ; caudal 

 extension of abdominal segment VII very prominent, tapering ; with a cicatrix 

 on caudal extension of abdominal segment VIII ; fleshy pleural setae on ab- 

 dominal segments I— I II present ; fleshy setae on sternite VIII not more than 3, 

 if present ........... COCCUS group 



Antenna 1-07-1-15 (average i-io) times longer than posterior leg ; midcranial ridge 

 ventrally reduced ; with 8 simple eyes ; presternum spinose ; scutellum not 

 tubular, 2-11-2-86 (average 2-36) times as wide as long ; basalare joining pleural 

 wing process to mesepisternum ; median ridge of basisternum reduced or absent ; 

 anterior metasternal setae 13-24 (average 18) ; wings 2-33-2-45 (average 2-38) 

 times longer than wide ; with a band of pleural sclerotization stretching from the 

 IVth-VIIth abdominal segments ; caudal extension of abdominal segment VII 

 small, broadly rounded ; without a cicatrix on caudal extension of abdominal 

 segment VIII ; fleshy pleural setae on abdominal segments I— III absent ; fleshy 

 setae on sternite VIII more than 5 ..... INGLISIA group 



Head (in lateral view) flat ; fleshy ventral head setae present ; broad interocular 

 ridge present ; postocular ridge not forking below ocellus ; posterior metasternal 

 setae present, minimum 7 ; wings more than 2J times longer than wide ; ab- 

 dominal segment VII with pleural sclerotization ; with fleshy ventral setae 

 occurring posteriorly beyond abdominal segment IV . . ERIOPELTIS group 



Head (in lateral view) dorsoventrally elongated or rounded ; fleshy ventral head 

 setae absent ; interocular ridge absent or (in Genus A) very narrow ; postocular 

 ridge forking below ocellus ; posterior metasternal setae usually absent, maxi- 

 mum 3 ; wings less than 2 J times longer than wide ; abdomen without pleural 

 sclerotization ; fleshy ventral setae not occurring posteriorly beyond abdominal 

 segment IV EULECAN1UM group 



