158 BRITISH ICHNEUMONS. [Hemiteles. 



43. dubius, Grav. 



Hemiteles dtilutis, Gr. I. E. ii. 836; Tasch. Zeits. Ges. Nat. 1865, p. 122; Schm. 

 Term. Ftiz. 1897, p. 532, ? . 



Head black. Antennae apically incrassate, with the five basal joints, or 

 only the scape beneath, red. Metathorax very feebly rugose, with distinct 

 areae. Abdomen glabrous, oblong-ovate with the fourth segment as broad 

 as the thorax ; second segment except sometimes its apical margin, and 

 often base of the third, red ; basal segment sub-linear, dorsally scabri- 

 culous, gradually slightly dilated apically, nearly twice longer than broad, 

 with no tubercles ; terebra one-third the length of the abdomen. Legs 

 pale red ; hind ones with base of the coxae and sometimes apices of 

 femora nigrescent, and the tibiae apically infuscate. Wings hyaline ; 

 stigma and costa piceous ; radix and tegulae white. Length, 2| mm. 



In size and conformation, especially of the antennae, it exactly re- 

 sembles H. fiilvipes, but the basal segment is narrower ; it is also like 

 Phygadeuon fumator, but the areolet is incomplete and the terebra rather 

 shorter (compare Phygadeuon rotundipeufiis, Thorn?,., p. 100, ante). 



Marshall brought this species forward as British in his 1870 Catalogue, 

 but I know of no details of capture, and it does not appear to have been 

 rediscovered on the Continent since its original record from Warmbrunn, 

 in Silesia. 



44. ridibundus, Grav. 



Hemiteles ridibundus, Gr. I. E. ii. 844; Tasch. Zeits. Ges. Nat. 1865, p. 128; Schm. 

 Term. Fuz. 1897, p. 539, ? . 



Head black with the mandibles sometimes centrally piceous ; clypeus 

 discreted and apically straight ; epistoma slightly prominent. Antennae 

 stout and filiform, rather longer than half the body, with joints conical, 

 distinct and somewhat incrassate ; the fourth to sixth ferrugineous. Meta- 

 thorax rugulose ; costae strong and areae complete ; apophyses sub-acute. 

 Abdomen ovate, as broad as the thorax ; segments two to four and the 

 apex of the first red or castaneous, with the margins of the following 

 sometimes, whitish ; basal segment closely and confluently punctate, 

 carinate and sub-tuberculate, gradually dilated apically, with the post- 

 petiole transverse, shorter and thrice broader than the petiole ; terebra 

 hardly longer than half the abdomen. Legs normal, red with all the 

 coxae and trochanters black ; hind tarsi and apices of their tibiae, darker 

 or nigrescent. Wings clouded with the tegulae infuscate, radix and base 

 of stigma whitish ; areolet pentagonal with the outer nervure sub-obsolete. 

 Length, 6 mm. 



This is probably not an uncommon species with us ; it occurs through- 

 out central and southern Europe. Bignell has taken it at Shaugh bridge 

 at the end of May, and at Laira early in June. I possess examples from 

 both Capron's and Piffard's collections, from Surrey and Hertfordshire. 



45. balteatus, Thorns. 



Hemiteles balteatus. Thorns. Ann. Soc. Fr. 1885, p. 28, cJ 9 . 



Black and slightly shining. Head as broad as thorax, hardly narrowed 

 posteriorly, vertex somewhat broad and not declived ; frons flat, parallel- 

 sided, densely and very finely alutaceous and slightly shining ; cheeks 



