Echlhnis.'] BRITISH ICHNEUMONS. 3 



apices of the slender flagellar joints subincrassate. Thorax subcylindrical 

 and not short ; notauli distinct, mcsosternal sulci entire ; metathorax 

 rugose with the areae more or less, and the petiolar area, entire ; 

 spiracles small and subcircular. Scutellum a little convex, triangular 

 and apically obtuse. Abdomen stout, elongate, subpetiolate and convex, 

 of S nearly parallel-sided, of 9 shorter and oblong-ovate ; basal 

 segment narrower than the following and shallowly canaliculate with the 

 petiole stout and gradually constricted basally ; postpetiole longer than 

 broad and in 9 ai)ically explanate, slightly longer and a little broader 

 than the petiole ; abdomen nearly smooth ; terebra about as long as the 

 abdomen or body, and emitted from a ventral fold. Legs not short ; 

 front tibiae, especially in 9. inflated and basally sharply constricted; 

 fourth tarsal joint bilobed ; claws simple. Wings somewhat ample and 

 usually clouded ; ner\'ures strong, areolet large and pentagonal. 



Ratzeburg thought this genus hardly distinct from Xorides, but 

 Taschenburg calls attention to the similarity of the antennal joints to 

 those of Crypius and of the shape of the thorax with that of Ephialtts. 

 Thomson (O. E. viii, 776) says that this genus forms a connecting link 

 between the Cryptinae and the present sub-familv, from the remaining 

 genera of which the pentagonal areolet, entire mesopleural sulci and 

 petiolar area, inflated front 9 tibiae, and bilobed fourth tarsal joint will 

 distinguish it. His JSIacrocrypfus fXylophrunis, Forst.) was erected for the 

 reception of E. lancifer, Grav., which was placed among the Cryptinae 

 (lib, cit. V. 486), on account of its hardly bordered petiole, the spiracles 

 of which are further behind the centre {cf. Ichn. Brit. ii. 326). 



Only one of our species appears to have been bred, but Ratzeburg 

 records (Ichn. d. Forst. iii. 115) three German species from xylophagous 

 Coleoptera fcf. Trans. Ent. Soc. 1907, pp. 18, 21, 30, 47) and another as 

 having been somewhat doubtfully raised from a species of Tortrix. 



Table of Sptri<s. 



(2). I. Second segment roughl)^ shagreened ; 



wings not fasciated .. .. i. RELUCTATOR, Z/;/;/. 



(i). 2. Second segment smooth ; wings 



transversely fasciated . . . . 2. nureculatus, Grav. 



1. reluctator, Linn. 



IcIincuDwn reluctator, Linn. F. S. 402. Crypfus reluctator. Fab Piez. 79. 

 Echthrus reluctator, Gr. I. F.. iii. 863 ; Holmgr. Sv. Alt. Handl. 1860, n. 10, 

 p. 72 ; Tasch. Zeits. Ges. Nat. 1863, p. 302, <f ? . 



A Stout and shining black species with the abdomen mainly red. Head 

 dilated behind the eyes ; mouth parts infuscatc. Antennae slender, 

 filiform and somewhat longer than the body; flagellum of ^ with joints 

 nine to fourteen, of 9 ^^'ith joints five to nine usually, white. Thorax 

 immaculate and alutaceous ; mesonotum central Iv depressed, with 

 distinct notauli ; metanotum rugose throughout, with the areola irre- 

 gularly subrotund, truncate at base and apex, laterally indistinct and 

 emitting the costulae from its centre ; apophyses small and acute. 

 Scutellum black and coarsely punctate. Abdomen of ^ narrower than 

 thorax, equilateral and apically sub-compressed, that of 9 as broad as 

 the thorax and oblong-ovate ; black with segments two to three or four 



H2 



