Exochilum] BRITISH ICHNEUMONS. 229 



Extremely like the two last f^enera and it might advantageously be 

 united with them, especially in respect to the neu ration though here the 

 nervellus is less strongly postfurcal and is intercepted hardly above its 

 centre ; this genus differs from both in the simple apex of its clypeus, the 

 hind tarsal lengths, and its usually pale scutellum. 



A female of the large and handsome nearctic species, Exochilum morio. 

 Fab., with black wings and body, and fulvous antennae, was captured at 

 Bootle by Liverpool on 30th July, 1904, by Mr R. Burgess Sopp, who 

 has kindly {)resented me with this interesting importation. 



lable of Species. 



(2). I. Submarginal nervure opposite ; scutel- 

 lum pale ; femora half red 1. CIKCUMFLEXU.M, Li)in. 



(i). 2. Submarginal nervure antefurcal ; scu- 

 tellum and hind femora black 2. I'.REVICORNE, Grav. 



1. circumflexum, Linn. 



Ichneumon circumflexus, Linn. S.N. 1758, 566; Fab. S.E. 1775, 341. Ophion 

 circiinificxutn. Fab. E.S. Suppl. 1798, 236; Piez. 133. Anouuilon circmuflcxus, 

 Jur. Nouv. M^th. 116, ? ; Gr. I.E. iii. 643; Zett. I.L. i. 392; Ratz. Ichn. d. Forst. 

 i. 87, pl.ix, ff. 11-22; ii. 77, <? ? . Thcrion circitmfJexiim, Curt. B.E. fol. 736. 

 Exochilum circuiiiflcxuni, Wesm. Bui. Ac. Brux. 1849, p. 122; Voll. Pinac. pi. iii, 

 fig. 6; Bridg. -Fitch, Entom. 1884, p. 181 ; Thoms. O.E. xvi. 1759, s ?. Var. 

 gigiinfeuui, Grav. I.E. iii. 647; Ratz. Ichn. d. Forst. i. 87, c? ? . 



A black and red species. Head with the face of (J often entirely pale, 

 of 9 \\ith usually three flavous longitudinal vittae, confluent below. 

 Antennae bright fulvous, with the usually flavous-marked scape and the 

 basal flagellar joint alone deep black. Thorax black ; metanotum de- 

 planate and evenly reticulate throughout. Scutellum always conspicu- 

 ously flavous. Abdomen red with a discal vitta on second segment, and 

 the anus from fifth or sixth segment, black; basal segment not apically 

 nf)dose. Legs red, with the anterior paler; coxae, apices of hind tibiae 

 and of their femora black; hind tarsi flavous, basally rufescent. Wings 

 flavescent with stigma and tegulae rufescent ; submarginal nervure oppo- 

 site and distinctly a little longer than space between discoidal and second 

 recurrent nervures; nervellus distinctly a little postfurcal and intercepted 

 slightly above its centre. Length, i4-(Ilyeres) 25 mm. 



The scutellum is said to very rarely be black, but the next spi'cies has 

 so recently been placed in its true genus that such records probably refer 

 to it. The variety is broadly red laterally on the pleurae, extends to 

 30 mm. and is unlikely to occur here. 



A common sj)ecies throughout Kurope, where it is found in August on 

 umbelliferous flowers and in pine woods; Schm. took it in northern 

 Africa and Palestine ; I have it from I\I(jnte Rosa and llyc^res, and ha\e 

 seen it from as far east as India. Ratzeburg has given us (Die Ichneu- 

 monen, i, X0-.S7 and Die Waldverderber, pll. i. et iii) an excellent account 

 of its life-history, which may be taken as typical of the Anomalides as a 

 whole; he describes and figures both larva and pupa in detail, and the 

 circumstances, as Hridg. -Fitch say, of tlie curious tailed young larva and 

 the ab.sence of tracheae, the probability of a double brood, the departure 

 from the normal solitary parasitism in two instances out of over fifty, etc., 

 are of great interest ; the parasite emerges direct from the host pupa, 



