APPENDIX TO YOL. I. 



SPIRACLES (p. 19). 



The third sentence of this paragraph should read as 

 follows : " The second is on the mesothorax close to its 

 junction with the metathorax, the rest are on first (= 

 fourth body segment) to seventh abdominal segments. 



PARTHENOGENESIS (p. 25). 



Since the publication of my first volume our know- 

 ledge of the occurrence of parthenogenesis in saw-flies 

 has been largely increased, and there seems to be no 

 doubt that the phenomenon is quite common. Our 

 additional information may be tabulated as before (see 

 p. 29). 



1. Eggs laid by virgin females produced males in 

 Emphytus cinctus, L. ; Emphytus viennensis, Schr. 

 (von Siebold*) ; Cladius padi, (von Siebold and 

 Cameron), CL pectinicornis, Fourc. (von Siebold) ; 

 Cl. viminalis (von Siebold), Nematus cadderensis 

 (Cameron), N. papillosus^ (von Siebold), Nem. conju- 

 gatus (von Siebold), Nematus coereolocarpus, Htg. 

 (von Siebold) ; Croesus septentrionalis (von Siebold 

 and Cameron), Trichiosoma lucorum (Cameron), Ahia 

 nitens (Cameron), Hylotoma berberidis (von Siebold), 

 Hyl. rosce (von Siebold), Lophyrus pini (von Siebold 

 and Cameron). 



* Of. Ent. Nachr., x, p. 93-95. 

 f Probably N. pavidus, Lep. 



