Mesoleptus | BRITISH ICHNEUMONS. 223 
Yorks, and Foxcroft found it at Rannoch, in Perth ; it occurred to me by 
sweeping at Tuddenham Fen and Belstead in Suffolk on 29th May; ina 
wood at Helpston Heath near Peterboro on 13th June ; and atan altitude 
of 450 feet on Arreton Down on 23rd June (misnamed J/. /)phae in 
Morey’s Guide to the Isle of Wight). Stenton takes it at Wimbledon in 
early June. 
7. xanthostigma, Grav. 
Mesoleptus xanthostigma, Gr. 1. E. ii, 55; Ste. Ill. M. vii. 220; Holmgr. Sv. 
Ak. Handl. 1854, p.64, ¢; J.c. 1855, p. 102; Brisch. Schr. Nat. Ges. Danz. 1878, 
p.66,¢ ¢. Hadrodactylus xanthostigma, Thoms. O.E. ix. 922 et xix. 1980, ¢ ¢. 
Black and hardly shining. Head but slightly constricted posteriorly ; 
mouth, clypeus and face stramimeous; clypeus subdepressed and apically 
rounded; frons finely punctulate. Scape stramineous, and flagellum 
rufescent, beneath. Mesonotum nearly smooth, basally punctulate, with 
distinct notauli; hamate marks before radices, a callosity below them and 
a pectoral mark stramineous; metathorax rugulose, with the areola dis- 
tinct and sometimes sulciform. Scutellum black. Abdomen centrally 
red, more broadly in 9; 6 with usually only the second and base of 
third segments black-marked castaneous; basal segment not very slender, 
scabriculous, discally distinctly sulcate, with spiracles almost before its 
centre; second segment dull, finely and closely punctulate or scabrous. 
Legs slender and red, with hind coxae black and apices of their femora 
and tibiae occasionally concolorous; anterior coxae and trochanters 
stramineous. Radix and tegulae stramineous; stigma dull testaceous or 
infuscate ; areolet irregularly triangular and subpetiolate; nervellus inter- 
cepted below its centre. Length, 8—r1o mm. 
Known by its dull, scabrous and sulcate petiole; Thomson considered 
it a form of transition between Luryproc/us and the present genus. 
It is said to occur in May, and ranges from Sweden to France and the 
Pyrenees, where Marshall has taken it. This species is recorded as found 
near London in June, but not common (Stephens); Nunton in Wilts in 
1884; Botusfleming in Cornwall in 1891 and 1892 (Marshall coll.); and 
from the Lands End (Marquand). I possess but a single pair, swept in 
very wet situations in ‘Tuddenham Fen on 19th June and Matley Bog in 
the New Forest on 16th of the same month. 
8. vulneratus, Zett. 
Tryphon vulneratus, Zett. I. L. 387, ¢. Mesoleptus vulneratus, Holmgr. Sv. 
Ak. Handl. 1855, p. 102; J. c. 1856, p. 375; Voll. Pinac. pl. xxvi, fig. 5; Brisch. 
Schr. Nat. Ges. Danz. 1878, p.66 et 1892, p. 32, ¢ ¢. M. curtus, Holmgr. Sv. 
Ak. H. 1855, p. 105, ¢. Hadrodactylus vulnerator, Thoms. O. E, ix. 921 et xix, 
1980, ¢ ?. 
Very closely punctate, slender and black with mouth, clypeus and face 
flavous. Head broader than thorax, a little constricted posteriorly ; cly- 
peus hardly discreted and apically rounded. Antennae very slender ; 
scape flavous, flagellum rufescent, beneath. Thorax dull and immacu- 
late ; metathorax finely rugulose with upper areae indeterminate, areola 
elongate and subparallel-sided, confluent with the broader petiolar area. 
Scutellum black. Abdomen black and slender, with a discal and apically 
explanate streak of red on the third, fourth and usually second segments ; 
