152 THE ENTOMOLOGIST. 



September 1st, 1910, from a small larva ol Arctia villica at Beer, 

 Devon, in which county Bignell also reared several from Odonestis 

 potatoria. On the continent it has been obtained from larvae of 

 Arctia caja and PortJiesia similis. With so many common hosts 

 it is strange that the species should be so rare with us. My 

 specimen has the antennae 47-jointed. Marshall gives the 

 number as 48-52. 



Modestus, Eein. "^ 



Added to the British list by Marshall, who describes (' Brae. 

 Europe, etc.,' vol. i, p. 294) how the species was reared in 1886 

 from cells of the solitary wasp, Eumenes coarctata, taken near 

 Bournemouth, and concludes, no doubt correctly, that the 

 parasites had preyed upon the caterpillars with which the wasps 

 had stocked their cells. I have often found the store of E. 

 coarctata to consist entirely of larvfe of heath-feeding species of 

 the genus Ewpethecia ; it is therefore very possible that one or 

 another of these was the host. In Marshall's collection in the 

 British Museum there is only a single specimen without data ; 

 this insect, perhaps, scarcely agrees with Reinhard's description 

 in one or two minor details, principally in the colour of the 

 abdomen, which is decidedly more rufous. I have several insects, 

 males and females, no doubt of the same species as Marshall's 

 specimen ; they were bred from larvae of Eupethecia nanata, in 

 late May and early June, 1915, given to me by Mr. G. B. Oliver. 

 I have no note of the locality from which they came. AU these 

 examples have the second and third abdominal segments and 

 the apex of the first dull rufous. 



Nigricornis, Wesm.t 



Easily mistaken for a dark form of c'lrcumscrqitus, though 

 differing therefrom in the shape of the first abdominal segment, 

 which m nigricornis is much narrower at the base, and also in 

 having longer antennae. Apparently scarce ; the only specimen 

 I have is a female bred by Tonge from a nettle-feeding larva at 

 Eeigate, June 17th, 1911. In this example the antennae are 

 fuscous only at the apices. 



Testaceus, Spin.]: 



According to Reinhard, who was copied by Marshall, this is a 

 species with 33-35-jointed antennae and the second abdominal 

 segment in the female " considerably broader than long." I 

 have several insects which agree in every way with the original 

 descfiption of Spinola and also agree with Reinhard's and 



* 'Berl. Ent. Zeit.,' 1863. 



t ' Nouv. Mem. Ac. Brux.,' 1838, p. 105. 



I ' Ins. Lig.,' ii, p. 131. 



