HYMENOPTEROUS PARASITES OF COCCID^. 255 



1. ASPIDIOTUS. 



From unidentified members of this genus Howard (* Kevision 

 of the Aphelinae of North America,' 1895, p. 21) bred Perissoj^- 

 tcrus pulchcUus, and {lib. cit. p. 42) Ablerus clisiocampa, Ashm., 

 which latter had been originally raised from a Lepidopteron. 

 Dalla Torre says that Aphelinus annulicornis* Ratz., has also 

 been bred from this genus, though Ratzeburg (Ichn. d. Forst. 

 iii. 195) simply gives it as preying upon some " Coccus.'' 



2. Anjndiotus pernicios2is, Comst.* 

 Howard {loc. cit. 27) tells us that Aphelinus fascipemiis preys 

 on this species, and Ashmead also represents Rhopoideus citrinus, 

 How., as destroying it in California. 



3. Aspidiotus ancylus, Putn.* 



Both Prospalta aurantii and Physcus variicornis are named 

 by Howard {I. c. 41 et 43) from specimens bred from this species. 



4. Aspidiotus abietis, Schr.* 



Many males and one female of Coccobius circumscriptus, 

 Eatzeburg, were bred by him (Ichn. d. Forst. iii. 195) from 

 Coccus pini, together with his C. luteus and single male C. incon- 

 spicuus (L c. 196 et 210). Aspidiotus pini, Comst., is given as 

 the host of Prospalta aurantii, How. (Revis. 41), and by Gaulle 

 (Cat. Hym. France, 106) of Aphelinus agriope, Walk. 



5. Aspidiotus oatreaforinis, Curt. 

 The synonymous A. tilia, Bche., is said by Eatzeburg (I.e. ii. 

 148, iii. 189 et 192) to have Y)Vod\icQd Encyrtas dendripennis and 

 E. hirsutus, very possibly also E. longicornis ; the first is now 

 synonymised with Habrolepis zetterstedtii, Westw., and the last 

 with Ericydnus longicornis, Dalm. Gaulle (Cat. 106) adds 

 Azotus marchali, How., and Archeiiomus bicolor, How., to its 

 parasites, and Ashmead (p. 409) says the cosmopolitan Arrheno- 

 phagus chionaspidis, Aur., attacks Diaspis ostreceformis, Sign. 



6. Aspidiotus hederce, Vail. 



This is destroyed by Prospalta aurantii, Howard (Revis. 41), 

 and, under its better-known name, A. nerii, Bche., Tyler Towns- 

 end bred four examples of Signiphora aspidiutii, Ashm. (p. 412) 

 from it in Mexico in November, 1894 ; Ashmead gives (p. 411) 

 his S. nuxicana and (p. 409) Arrhenophagus chionopsidis, Aur., 

 as attacking it, and Gaulle (Cat. 106) Aspidiotiphagus citrinus, 

 Crawf. 



7. Aspidiotus uv(E, Comst.* 



Howard describes (' Insect Life,' 1894, p. 6) his Prospalta 

 murtfeldtii from this species. 



