4 BRITISH ICHNEUMONS. \Helcostizus. 



tate tliroiighout ; clypeus short and hardly discreted ; labrum white, 

 narrow and apically acute ; j)alpi infuscate ; 6 with face and cheeks white. 

 Antennae black with scape sub-ovate ; flagellum filiform, hardly attenuate 

 basally, of 9 with joints six and seven white above ; of $ with the tenth 

 to the fifteenth acutely granulate below, and the scape white beneath. 

 Thorax oblong, dull, finely punctate and pubescent throughout ; epomiae 

 obsolete ; niesosternal sulci slender and not reaching beyond the centre ; 

 epimera glabrous ; $ with prosternum and callosity beneath the radix white- 

 marked ; metathorax apically rotund, pleural costa distinct and transverse, 

 angularly produced towards the base ; coxal area wanting, the basal narrow 

 and parallel-sided. Scutellum black, basally margined laterally, with its 

 basal fovea neither deeply impressed nor striate. Abdomen very finely 

 pubescent, sub-petiolate ; first segment short and somewhat curved, 

 broader apically and in $ linear; the second not transverse, with its epi- 

 pleurae inflexed and spiracles contiguous with the margin ; the fourth to 

 the sixth gradually shorter, the seventh and eighth longer with the former 

 basally sub-excavate ; terebra straight, not slender and hardly longer than 

 the hind metatarsus ; $ with the ventral valvulae sub-spinosely compressed, 

 $ with segments four to seven narrowly white-margined. Legs elongate, 

 slender and, including coxae, red ; posterior tarsi and the hind tibiae 

 externally infuscate, front tibiae whitish-testaceous and somewhat strongly 

 inflated; $ with anterior coxae and trochanters white. Wings not clouded, 

 radix and tegulae white, areolet rarely interstitial externally ; discoidal cell 

 with fenestra entire and its lower external angle, situated beneath the outer 

 angle of the areolet, sub-acute. Length, 6-9 mm. 



The almost sessile abdomen of this species lends it a strongly Pimplid 

 appearance, and the short terebra and very small areolet all render it 

 distinct. 



Bridgman and Fitch say this species is not uncommon in Britain ; and 

 on the Continent, where it has been raised from Saperda populnea, it 

 occurs in September throughout the northern and central regions. I have, 

 however, never taken it, and the only females I have seen, are one in the 

 British Museum collection, mixed with several incorrect males, and one 

 in Marshall's collection, also in the British Museum, from Lastingham in 

 Yorkshire. 



GIRAUDIA, Forster} 



Forst. Verb. pr. Rheinl. 1868, p. 184; Caloayptus, Thoms. O. E. vi. 594. 



Frons dull and finely punctate ; labrum not free ; lower mandibular 

 tooth the larger ; antennal scrobes obsolete ; $ face pale. Flagellum of $ 



1 Ichneumon belliis was thus described by Gravenhorst (I.E. i. 571) from a single ? sent to him by 

 Hope, who captured it near Netley in Shropshire :— Antennae hardly half the length of the body, 

 centrally white-banded; scutellum black. Abdomen oblong-ovate, as broad as the thorax, deplanate 

 and strongly nitidulous; black, with segments two to four red, and the sixth and seventh obsoletely 

 wliite dorsally ; post-petiole gradually dilated towards the apex, longitudinally impressed and twice 

 broader than the petiole; terebra not exserted. Legs normal, red; apices of the hind femora and 

 tibiae, and all the tarsi, black. Wings clouded ; areolet pentagonal ; radix white, tegulae black. 

 Length rather more than three lines. 



Stephens in 1835 records it as "scarce; found near London in July"; but no one appears to have 

 noticed it in Britain since then. 



In his Remarques critiques on Gravenhorst's types in 1859, Wesmael says "il appartient an 

 groupe des Cryptus," and that it should there form a distinct sub-genus on account of its short and 

 inflated antennae, which are enlarged from the centre to the apex. In this respect it apjiears related 

 with Girainliii, but the entirely concealed terebra points to a Tryphonid, rather than to a Cryptid, 

 association. Till more is known of it, it were better not to place it in our catalogue; though an 

 examination of the type, which may be in the Oxford Museum, should settle the question of the 

 systematic position of this exclusively British species. 



