THE YOUNG NATUEALIST. 



257 



ExETASTES nigri^es. Pennycomequick, 1st 

 August. 



Mesoleptus similis. Bickleigh, 2Stii June. 



A new British species. 

 EuRYPROCTUS nigricej)s. Bred 11th June, 



from Sawfly cocoon (Trichiosoma 



ietuleti ) 



Perilissus proerogator. Bickleigh, 30th 

 August. 



Megastylus cTuentator. Hartley, 28th 

 September. 



Mesoleius ruficornis. Bickleigh, 8th Sep- 

 tember. A new British species. 



Cteniscus limaciOMus fHolmgr.) Bick- 

 leigh, LOth August. A new British 

 species. 



ExocHUS jpictm, Bickleigh, 30th August. 



A new British species. 

 Chorinaeus funelris. Bickleigh, 24ih 



June ; 4th August. 

 Bassus scalriculns (tlolmgr.) Whitsand 

 Bay, 6th May; Laira, 8th May. A 

 new British species. 

 fiavolineatus. Whitsand Bay, 6th May. 

 Holmgreni. Bickleigh, 20th August. A 



new British species. 

 pallidi^jes. Bickleigh, 14th Sepr ember. 

 PiMPLA graminellcB. Bolt Head, 17th June ; 

 Bickleigh, 24th June. 

 stercorator. Bred 14th March from Eu- 



pithecicL linariata. 

 drevicornis. Bred oth August from Diufi- 



thoecia ciicuhali. 

 numm. Egloskerry, 23rd July. 

 PoLYSPHiNCTA varipes. Exeter, 23rd Sep- 

 tember. 



LissoNOTA commixta. Bickleigh, 8th Sept. 

 Bracon fulvipes. Egloskerry, 23rd July. 



lojigicoUis . Bickleigh, 13th July. 



coraticus (Wesm. ) A new British species. 

 Plym Bridge, 11th August. 

 'Ra.oQ^^s periscelis. Exeter, 23rd September. 

 Colastes Iraeonius. Bickleigh, 19Lh iiept. 



decorator. Bickleigh, 28th May. 

 SiGALPHUs obscurellus. Bred 19th Septem- 

 ber from Ggmnetron iwciis, a small 



beetle, the larra of which feed on the 

 unripe seeds of the Toad-flax {Luiaria 

 vulgaris). 



AscoGASTER onifideus (T\'esm,) A new 

 British species. Egloskerry, 23rd July. 



Apanteles glomeratus. This is the common 

 parasite that infests Pieris Ivassicoe. 

 This year C1832) I have bred it (6th 

 June) from Pieris rapcB. The cocucns 

 were obtained the previous autumn at 

 Stoke ; but a greater surprise was 

 was breeding on the 4th July from 

 Philgalm p ilosar-ia , 

 vitrijjennis. Bred 24th June from Am- 

 pliiiyyra pyramidea larva, which pro- 

 duced eight specimens. 

 j}eT2)icuus (-■■ees. I A new British species. 

 Bred 27th May from Leueanis litter- 

 alis. 



Irevicorni^ ("'tN'esm.) Bred ith July from 



Tceniocamjpa miniosa. 

 tetricus fShJ,) A new British species. 



Bred 24th August from Saiyrus janira. 



Fifty larvie of tetricus found food 



within the larva oi janira. 

 frateriiuis (Khd.) A new British species. 



Bred 20th September from A^y Hates 



citaria. 



As fratermis is new to this country, it may 

 be interesting to know something of 

 its economy. In this instance twenty- 

 seven were bred. The larvre emerge, 

 almost spontaneously, from each side 

 of their victim, and they at once com- 

 mence making their cocoons, which 

 are formed on the underside of what- 

 ever the larva of Citraria may be then 

 resting upon. They are formed in a 

 very orderly manner, taking into con- 

 sideration that the whole twenty-seven 

 work at the same time, and form a 

 semi-pyramid of cocoons, and when 

 finished the unfortunate larva seems 

 to have a very great affection for them 

 by covering them with its body, appar- 

 ently to protect them. After the flies 



