THE ENTOMOLOGIST. 93 



appropriating the substance of a second-class circle. He 

 supposes it to be the parasite of a Microgaster, which is the 

 parasite of Anomalon circuinflexum, which is the parasite of 

 a moth. But he observes that it sometimes belongs to the 

 second-class circle, or is even a first-class parasite, as it 

 feeds on Heraiteles and on Tachina, and on Gastropacha 

 pinivora. 



P. coraplanatus. On Rhodiles Rosae, or on one of its 

 parasites. 



P. Einersbergensis. On Cecidomyia Fagi. 



P. Hohenheinensis. From fir cones, inhabited by Tortrix 

 strobilana and by Anobium Abietis. 



P. Klugii. On Nematus Erichsonii. 



P. pygmaean as. On Tortrix pygmaean a. 



P. albinervis. On Yponomeuta Padella. 



P. Muscarum. On Musca stabulans, the latter being a 

 parasite of Gastropacha Pini. I'his is not the golden green 

 Pteromalus frequent on windows, and appearing there in 

 March. 



P. Pogonochoeri. On Pogonochcerus fascicularis. 



P. Braconidis. On Bracon linearis. 



P. annulatus. On Coccus racemosus. 



P. variabilis. On Yponomeuta cognatella. 



P. Dahlbomii. On Pogonochcerus fascicularis and on 

 Pissodes notatus. 



P. violaceus. On Magdalis violaceus. 



P. flavipalpus. From the gall of a Cynips. 



P. Diachymatis and P. Orchestis. On Orchestes viminalis. 



P. Neesii and P. leucopezus (= ? P. Hercyniae). On Tcras 

 terminalis, or on one of its parasites. 



P. Audouinii. On a Microgaster, and probably on Eury- 

 toma Abrotani. 



P. Cordairii. On Teras terminalis. 



Platymesopus Weslwoodii. On an oak Cynips. 



P. Erichsonii. On Teras terminalis. 



Ormyrus chalybajus. On T. terminalis, or on one of its 

 parasites, 



Styloceras (= Rhaphitelus) Ladenbergii. On Hylesinus 

 Fraxini. 



Hybothorax Graffii. On a Myrmeleou. 



Encyrtus Boucheanus, On Yponomeuta Evonymella. 



