THE FAUNA OF SCOTLAND. 81 ; 



Andricus pedinmili, Schenck, /. c. 74, 77, and 111. ; 



I)o. amhigitns, Schenck, I. c. 111. ] 



Bo. verrucosus, Schenck, I. c. 112. \ 



Do. glahriusadns, Schenck, I. c. 112. ' 



ApTiilothrix quadrUineatus, Adler, Zeit. wiss. Zool. 1880, 204, pi. xi ; 



f. 22. 



Common — Mugdock, Cadder, Bishopton. ■ 



Genus : DIASTROPHUS. \ 



\ 



Diasfi'opJms, Htg., Germ. Zeit. ii. 186 ; Mayr, Genera, 25. i 



1. T>. RUBI, TItj. '{ 



Diastroplms nd>i, Htg., Germ. Zeit. ii. 194. • 



Cadder, Kenmuir, Cadzow. \ 



Genus : SYNERGUS. J 



Sijnenjus, Htg., Germ. Zeit. ii. 186. 



This is an inquiline genus, the flies depositing their eggs in the galls 

 of other insects, in which they live — cuckoo fashion. The species are 

 very difficult to separate owing to their great variability. The 

 nomenclature is after Mayr's monograph (Verh. z.-b. Ges. Wien xxii.). 

 I am only acquainted with the distribution of the species in Clydes- - 



dale, except with a few of the species found in the summer g^lls. \ 



1. S. THAUMACERA, Dal. H 



Cym'ps thaumaccra, Dalman, Anal. Ent. p. 96. ^ 



Sijnergus Klugu, Htg., Germ. Zeit. ii. 199. '• 



Do. luteus, Htg., I. c. • > 



Do. carinatus, I. c. iii. 348 ? 



Do. thaumaccra^ Mayr, Verh. z.-b. Ges. Wien, 719. 

 Common in galls of Btorldza mcgaptera. 



2. S. Reinhardi, Mayr. 



Sijnergus Bebdiardi^ Mayr, /. c. 698. -^ 



Not common ; in galls of Cgnips Kollarl — Cadder. .-i 



3. S. APICALIS, Htg. - •; 



Synergns apicah\% Htg., Germ. Zeit. iii. 349 ; Mayr, I. c. 705. ■ 



Syncrgns immargiiiatus, Htg., /. c. 348. 

 Do. ci-ythrostomns, Htg., I. c. 348. 

 In galls of Andricus radicis (nodidi) Kenmuir, and in Neurotenis i 



lentlcidaris (agamic) Mugdock. 



