1 26 HYMENOPTERA. 



Microplitis spectabilis, Hal. bred from Dianthoecia capsincola, "W. V. 



„ ingrata, Hal., ^ $ „ „ Smerinthus ocellatns, L. 



Orgilus obscurator, Nees „ „ Coleophora discordella, Zell. 



Perilitus obf uscatus, Nees „ „ Orcbesia micans, Panz. 



Eubadizon pectoralis, Nees „ „ Dopressaria nervosella, Haw. 



T, . 1 ^- ^- I Depressaria angelicella, Hiibu. 



Pvgostolus sticticus .. ,, ,, I ptilodontis palpina, L. 



Macrocentrus linearis, Nees, j 



^ $ , of whicb tbe $ is V „ „ Phycis roborella, W. V. 

 undescribed . . . . ) 



( Depressaria angelicella, Hiibn. 

 Macrocentrus marginator, Nees,, „ < Sesia culiciformis, L. 



( „ tipuliformis, L. 

 „ thoraciciTS, Nees „ „ Depressaria applanclla, F. 



Diospilus nigricornis, Wesm. „ „ Ceuthorhyncbus sulcicollis,Gyl. 

 Opius irregularis, Wesm. „ „ Agromyza priraulaj, Desv. 



Reared by Mr. Incbbald from larva of a minute black fly wbich 

 mines tbe le"aYes of the primrose. This, I believe, is the second time 

 that the economy of the extensive genus Opius has been observed. 

 In both cases the object of their attack was Dipterous. 



f Prom the contracted larva- 



I skin of a species of Muscids 



Alysia manducator, Panz. „ „ \ found beneath the dead body 



I of a green woodpecker," bv 

 ( Mr. Pletcher. 



The species marked * in the above list have already been 

 published as new to Britain. Comparing the results with 

 those collected by Ratzeburg and Rondani, I see many new 

 facts which make the whole worth recording, although for 

 the purpose of generalization much more extensive tables 

 are desirable. One obvious remark is that several common 

 species (e. g., P. instigator) are polyphagous, not even con- 

 finino- their attacks to the same order of insects. The 

 Ophionides, according to Mr. Fletcher's remarks upon 

 species reared by him, make themselves strong oval cocoons, 

 a practice extending also to the small species of Limneria, 

 &c. Pimpla, on the other hand, undergoes its transforma- 

 tions without any other covering than the skin of the victim. 

 A parasite which I found in January in a pupa of P. brassiccE 



