Mi esoletus | 
BRITISH ICHNEUMONS. 149 

at Burnham Thorpe in Norfolk. Desvignes, who seems to have known no 
author but Gravenhorst, had a long series of this species under 77yphon 
longipes and captured males in Essex. 
12. bicolor, Grav. 
Tryphon bicolor, Gr. I. E. ii. 326; Ste. Ill. M. vii. 264; Fonse. Ann. Soc. Fr. 
1849, p. 233, 2; (?) Brisch. Schr. Nat. Ges. Danz. 1892, p.33, ¢. Mesoleius gutti- 
ger, Holmgr. Sv. Ak. Handl. 1855, p. 171, ¢, cf. p. 381; l.c. 1876, p.47, 4 (? excl. 
9); M. (Scopesus) guttiger, Thoms. O. E. xix. 2030, ¢ ¢. 
Head obviously constricted posteriorly ; mouth, clypeus and ¢@ face 
flavidous-white. Antennae with scape black, and flagellum ferrugineous, 
beneath. Thorax black, ¢ with broad triangular lateral mesonotal marks 
flavidous; mesopleurae alutaceous, with distinct longitudinal rugosities 
throughout. Abdomen with second to fourth, and in @ perhaps the first, 
segments red; basal segment not at all sulcate. Legs red with coxae and 
trochanters black ; anterior femora clear flavous-red; hind legs black 
with the femora stout and the tibiae red, basally slightly infuscate and 
apically black. Wings with stigma and tegulae dull stramineous. Length, 
7—10 mm. 
Similar to A/. rufolabris, but stouter with the hind femora stouter and 
black, their tarsi subferrugineous, the speculum glittering and mesosternal 
sculpture finer. 
Tryphon longipes and T. bicolor were erroneously synonymised by Des- 
vignes in 1856, and the former consequently accorded priority by Mar- 
shall in our 1870 catalogue; Pfankuch has proved them to be distinct, 
however, and since it is 7. dzcolor that Stephens states to be British, M id 
longipes (antedated by 7. nigricollis, Grav., to which it falls) must also be 
regarded as indigenous. Both belong to Scopsesus, Thoms., and our 
present species is the J/esolevus guttiger of Holmgren and Thomson. 
I have seen no females that I can distinguish from those of the last 
species, there are no records since 1835; and the single male in his col- 
lection named JZ. guttiger by Marshall is certainly referable to A/. rufola- 
bris. It is mentioned from Silesia by Gravenhorst, Aix in Provence by 
Fonscolombe and Sweden by Holmgren. Stephens says he took it near 
London in June and July; he, too, mixed the last species with it, but 
there is in his collection a single male with distinct triangular humeral 
marks, which seems correctly here placed. 
13. rufonotatus, Holmgr. 
Mesoleius rufonotatus, Holmgr. Sv. Ak. Handl. 1876, p.31,¢ %. M. (Scopesus) 
rufonotatus, Thoms. O.E. xix. 2033, ¢ ?. 
Head obviously constricted posteriorly; mouth and clypeus partly 
flavidous in 9; mouth, clypeus, margin of the compressed cheeks and 
the face stramineous in @; clypeus apically rounded in the centre. An- 
tennae apically pale ferrugineous beneath; @ scape stramineous-marked 
below. ‘Thorax of ¢ with stramineous dot before radices; notauli hardly 
indicated; mesopleurae alutaceous, very finely punctate, shining ; areolar 
costae evanescent. Abdomen with second and third segments entirely 
or partly castaneous; basal segment not longer than hind coxae, basal 
