ROSACEAE 199 



Each gall is inhabited by a yellowish larva. June to 

 September. M. G. (Text, Fig. 12.) 



Perrisia ULMARIAE Bremi 475 



Syn. Dasyneura ulmariae Bremi, Ceddomyia ulmariae 

 Bremi. 



Connold, Veg. Galls, pi. 89; Plant Galls, fig. 158. 

 Houard, No. 2839. 



Spiraea Filipendula Linn. 65. Dropwort. 

 Diptera Solitary or conglomerated swellings, each forming a 



hollow truncated cone, in the axils of the leaves, or on 

 the leaf itself, green at first, becoming reddish or purple. 

 The gall is hemispherical on the inferior surface of the 

 leaf, and cylindrical on the superior one, with the opening 

 at the apex of the cone. Each gall contains a yellowish- 

 white larva. M. G. (Text, Fig. 10.) 



Perrisia ulmariae Bremi 476 

 Connold, Plant Galls, fig. 103. Houard, No. 2B30. 



Rubus idaeus Linn. in. Raspberry. 

 Hymen- Large elongated swelling on the stem, which is fre- 



optera quently greatly curved. Surface mammillated, each pro- 

 jection denoting the position of an ovoid or circular larval 

 chamber. Reddish or purple when growing, brown at 

 maturity. M. G. 



Diastrophus rubi Hartig 477 

 Connold, Plant Galls, p. 85. Houard, No. 2963. 



Diptera Slightly elongated, but pronounced swelling on the 



stem ; surface rough, bark cracked and fissured longi- 

 tudinally, reddish-brown. The irregular cavities within 

 contain white larvae. M. G. 



Lasioptera rubi Heeger 478 

 Houard, No. 2964. 



,, Leaves distorted, midrib swollen and bent. Larvae 



white, gregarious. M. E. Spring, 1 1. 



Perrisia plicatrix H. Low 479 

 Houard, No. 2966. 



Homop- Leaf margins greatly twisted and involute, often to the 



tera midrib. Leaf usually discoloured and slightly thickened. 



Aphis large, shining green, slightly pilose, cornicles 



curved and slightly thickened at the base. May and June. 



Nectarosiphum rubi Kalt. 480 

 Syn. Siphonophora rubi Kalt. 

 Buckton, i., 140. Houard, No. 2968. 



