232 BRITISH ICHNEUMONS. 



14. rubellus, Gviel. 



Ichnctimon ritbellus, Gmel. N. S. i. 2704 ; Gr. I. E. i. 138, excl. 9 ; Ste. 111. M. vii. 

 134. Ectopiits riibelliis, Wesm. Mem. couron. Ac. Belg. 1859, p. 14, $. Platylabiis 

 rtibellus, Berth. Ann. Soc. Fr. 1896, p. 32S, cJ ? . P. Thedeiiii, llolmgr. Ichn. Suec. ii. 

 329. <??;'/• iii- 3SS. 



A somewhat shining species. Head short, black, hardly broader than 

 thorax, rounded behind the eyes ; frons smooth, centrally canaliculate ; 

 face transverse, convex ; clypeus transverse, rather strongly convex, apically 

 truncate and finely margined ; apices of cheeks somewhat reflexed and alone 

 flavous. Antennae black, sub-filiform, slender though slightly incrassate 

 centrally. Thorax gibbulous, black ; mesonotum shining and finely punc- 

 tate ; metathorax short, abruptly truncate apically, rugosely punctate with 

 complete areae ; areola very short and broad, transversely linear ; petiolar 

 area discreted, large and flat ; spiracles very small and rotund-oval. Scu- 

 tellum black, strongly protuberant, laterally margined to near its apex. 

 Abdomen oblong ; black, with second segment apically castaneous ; 

 petiole elongate, deplanate ; post-petiole quadrate, equilateral, smooth and 

 shining, disc sub-convex, carinae obsolete, spiracles prominent ; second 

 segment elongate, narrowed basally, finely and closely punctate, with linear 

 and sub-parallel thyridii ; third transverse ; terebra hardly exserted. Legs 

 normal, red ; tibiae sub-arcuate ; coxae, trochanters, hind tarsi and apices 

 of their tibiae, nigrescent ; hind tibiae of ? sometimes entirely red. Wings 

 sub-hyaline ; stigma large and infuscate ; areolet deltoid ; tegulae and 

 radix piceous or stramineous. Length, 6-7 mm. 



The $ rarely has the three basal segments more or less red, and the 

 flagellum centrally white above. 



I do not consider that Holmgren's name for this species can stand, as 

 indicated by Schm. in Opusc. Ichn. p. 227, since its identity with that of 

 Gravenhorst is established, if not by Wesmael, certainly by Thomson in 

 O. E. xix. 2104. 



Stephens took this species uncommonly, about London, in June ; it 

 occurs on umbelliferous flowers, in August. It has been bred in Britain, 

 from Einmeksia uiiifasciaria, by Mr. Elisha. On the Continent it is 

 recorded from Germany, Sweden and Austria. 



15. nigricollis, Wesm. 



Platylabus nigricollis, Wesm. Nouv. M(5m. Ac. Brux. 1844, p. 161 ; Bui. Ac. Brux. 

 1848, p. 311 ; Thorns. Ann. Soc. Fr. 1881, p. 125 ; Berth, lib. cit. 1896, p. 330; Thoms. 

 O. E. xix. 21 13, <J ?, 



Head triangular anteriorly, and narrowed behind the eyes, black ; vertex 

 short ; clypeus apically rounded ; frons coriaceous, scrobes small and 

 lunate ; $ with bases of mandibles, angles of clypeus, facial and some- 

 times a dot at the vertical orbits, white. Antennae setaceous, centrally 

 slightly compressed and white-banded ; of $ with scape white beneath 

 and the central band often sub-obsolete. Thorax black, of $ with a pale 

 callosity beneath the radix ; notauli distinct, short ; areola transverse, often 

 sub-incomplete apically ; costulae entire ; apophyses short and distinct ; 

 spiracles small, sub-circular. Scutellum black ; its lateral carinae pos- 

 teriorly indistinct. Abdomen somewhat short, black ; two or three basal 

 segments red, the first being sometimes black in $ \ the apical three 



