lOO BRITISH ICHNEUMONS. [Fhygadeuon. 



31. scaposus, Thorns. 

 Fhygadeuon scaposus^ Thorns. O. E. x. 961, <} 9 . 



Black ; abdomen centrally, antennae basally, and the legs, red ; post- 

 annellus shorter than the cylindrical scape ; terebra slightly longer than 

 half the basal segment. Length, 3-4 mm. 



Thus alone Thomson describes his new species of the P. fumator 

 group, adding that it differs from its immediate allies in its broad peri- 

 stomium, long and stout mandibles, the antennae of the ^ short, with their 

 post-annellus hardly longer, and in 9 evidently shorter, than the cylindrical 

 scape. As a matter of fact, I find the relative length of the basal flagellar 

 joints quite a good and sufficient distinction. 



This species, which has only been noticed elsewhere in Sweden, was 

 introduced as British by Bridgman on the strength of specimens found by 

 him in Norfolk. It is not, however, rare with us, but at present is much 

 mixed in collections with P. fumator. All the specimens I have seen were 

 taken in July and September : Bury St. Edmunds, Bungay and Finborough 

 Park on Angelica flowers (Tuck). Felden in Herts., one female (Piffard). 

 I have only found it at Tunstall and Alderton in Suffolk, where it affected 

 the flowers of Foeniciihim vu/gare. 



32. dimidiatus, Thorns. 

 Phygadeuon di/iiidia/iis, Thorns. O. E. x. 963, <5 9 . 



Black ; abdomen centrally, antennae basally, and the legs, red ; terebra 

 shorter than the basal segment. Length, 3 mm. 



This species is even more insufficiently described than the last and is 

 very closely allied to it and to P. fumator, but the antennae have the basal 

 half red ; the terebra is shorter and the sternauli hardly reach beyond the 

 centre of the mesosternum. 



It was first recorded as British by Bridgman from Norfolk ; and, 

 although much rarer than P. fumator, I have met with it in August at 

 Lyndhurst, in the New Forest, and Barnby Broad in Suffolk ; and received 

 it from Tuck from Finborough Park near Stowmarket in late September ; 

 Butler from Abinger Hammer and Capron from Shere, both near Guild- 

 ford ; Yerbury from Clifford's Castle in Hereford, and Charbonnier has 

 found it at Bristol in May, probably after hibernation. Tomlin has taken 

 it at Matlock in early July ; and it is also recorded from Sweden and 

 Germany. 



33. rotundipennis, Thoms. 



Fhygadeuon fumator, var. , Bridg. Trans. Ent. Soc. 1881, p. 151, 9 (hiachypt.). 

 P. rotundipennis, Thoms. O. E. x. 963, ? . 



Black \ antennae usually with the four basal joints and base of the fifth 

 red, sometimes infuscate above, or with the first and second or only the 

 second joint rufescent. Abdomen black with the second, and basal half 

 of the third, segment red. Legs red ; all the coxae and trochanters 

 flavidous, or with the hind coxae more or less, and the apices of their 

 femora, infuscate. Wings hemipterous. Length, 3-4 mm. 



