50 I'EANSACTIONS OF THE 



aud ou the young leaves. It is distributed all over Scotland, and 

 is exceedingly abundant in Cadder "Wilderness. The flies emerge 

 in June and July. A Synergus tenants the galls to a great extent, 

 as well as numerous handsome Chalcididce. 



S. tricolor, Hart. — I have bred this species from galls, which at 

 the time I took for those of *S'. baccarum, and considered the 

 insect to be an inquiline. Continental authors, however, give it 

 as a true gall-maker, although their descriptions of the galls are 

 nearly applicable to those of baccarum. The fly came out in July, 

 and does not seem to be common. 



S. vesicatrix, Sch.— (Traill, Ent. Mon. Mag., x., p. 85.) The 

 galls have been found near Aberdeen by Mr. Traill. 



Diastrophus rubi, Hart. — Forms galls on the stems of Rubus 

 ccesius, and according to Mr. A. Miiller on the tops of Pteris. At 

 Cadder and Kenmuir the flies are found during May. 



Rhodites rosce, L. — The maker of the Bedeguar of the rose; it 

 is distributed all over Scotland, and is very common at Lambhill, 

 and along the banks of the Forth and Clyde canal. 



R. eglanterice^ Hart. — Evidently common throughout the 

 country ; at Lambhill, abundant. The green monothalamous 

 galls are found on Rosa canina. 



R. spinosissimcB, Gir. — The bright red galls are found on Rosa 

 spinosissima wherever that plant occurs. On Rosa canina are 

 found galls which differ from these in being larger, and the colour 

 pale green ; never red. They are clearly the same that Hartig 

 (Germ. Zeit., ii., 196) describes as those of Aulax canincB ; but 

 Taschenberg (Hymen, Deutsch., p. 135) refers them to spinosissimce, 

 A. canince residing in the galls as an inquiline. 1 have collected 

 the galls at Lambhill for four years, and have never been able to 

 breed a Rhodites from them, but plenty of parasites have come 

 forth. At Lambhill, one evening at the beginning of August, I 

 was fortunate enough to witness an inquiline oviposit its eggs in a 

 gall. It held on to the side of the gall by its feet, and deposited 

 an egg at that point, then shifted its position to the other side, 

 and laid another, or perhaps more than one. On the same leaf 

 was another gall, which. On taking home and examining, I found to 

 be very soft and succulent, with the cells not properly formed, and 

 the progeny of the maker still in the egg state. 



Trig onas pis megaptera, Panz. — Evidently a common early 

 summer species. The galls are very pretty objects of a shining 



