HYMENOPTEROUS PARASITES OF COCCID^. Ill 



85. Coccus ulmi, Linn. 

 From this species, which Mr. Newstead considers probably 

 synonymous with Lecanium cciprece, Linn., Walker has described 

 (Ann. Nat. Hist. xiv. (1844), p. 185) his Encyrtus machceras. 



86. Coccus phalaridis, Linn. 



This species is referred to the genus Lecanium by most 

 authors, but Mr. Newstead tells me it is in any case unrecogniz- 

 able. From it Dalla Torre gives (Cat. Hym. v. 247) Trichomas- 

 thus (Sceptrophorus) ci/aneus and ctjaneifrons, Dalm., apparently 

 upon Kollar's authority, but cf. the synonymous Encyrtus stigma. 

 Walk. (Ann Nat. Hist. xix. (1847), p. 228) in respect to the 

 former, which was also bred from " cottony cocoons " — doubtless 

 Coccids— on a leaf by Curtis (Brit. Ent. fol. 395). Mayr (Verb, 

 z.-b. Ges. 1875, p. 745) raised Chiloneurus formosus, Boh., from 

 it ; together with {lib. cit. p. 695) Aphycus hederaceus, West., 

 which I took on ivy at Monk Soham on 8th June, 1908. 



87. leery a purchasi, Mask.* 



The parasites of this species are stated to be the Pirenid 

 Ophelosia cvawfordi,V\i\Qy ('Insect Life,' 1890, p. 248), Coccopha- 

 gus californicus, Howard (/. c. 1889, p. 269), Encyrtus dubius, 

 How. (nee Fonsc. ; l. c. 1888, p. 270) from California, and the 

 Proctotrypid Phanurus (Thoron) opacus, How. [l. c. p. 268). 

 [Howard's record of his Isodromus icerya (Pteport Ent. U. S. 

 Agric. 1886, p. 488) is an error, the species having been raised 

 from the Neuropterous genus Chrysopa {cf. Ashm. 1900, p. 378.)] 



88. Icerya ro?cB, Eiley.* 

 From a host of this name Ashmead records Cerchysius icerya, 

 How. — distinct from the last-named Chalcid — from Northern 

 America (Ash. 1900, p. 380). [Dalla Torre (Cat. v. 415) gives 

 Lestophonus iceryce as hemipterous host of Euryischia Icstophoni, 

 Koebele ; Scudder knew no such genus, but cf. Eiley, Keport 

 Ent. U. S. Agric. 1889, p. 92.] 



89. Lichtensia koebelei, Mask. 



Two enemies have been bred from this species in Ceylon. 

 Both Aphycus lichtensice and Encyrtus {Microterys) lichtensia, 

 Howard, are described in Proc. U. S. Nat. Mus. 1896, pp. 636 

 et 640. 



90. Lichtensia viburni, Sign. 



Two specimens of a Coccophagus sp. were bred at Llandaff 

 from this Coccid, and Newstead suggests (Mon. Cocc. Brit. i. 31) 

 that, since L. viburni is seldom attacked, the parasite is probably 

 rare. It is improbably exclusive. 



