Exetastes':\ BRITISH ICHNEUMONS. 299 



mity and the imago effects its escape by similarly gnawing away the 

 envelope in long strips. Mr. Campbell-Taylor sent me both cocoon and 

 imago from Cardiff, where he had dug the former at the base of a tree 

 and bred the latter on 6th June, 1902. 



3. guttatorius, Grav. 



Exetastes guttatorius, Gr. I.E. iii. 411, excl. var. ; Holragr. Sv. Ak. Handl. 

 1854. p. 27; lib. cit. 1858, n. 8, p. 154; Thorns. O.E. xxii. 2417, <? ?. Voll. 

 Pinac. pi. xvii, fig. 5, i . 



A bright species with pale scutellum and red abdomen. Head trans- 

 verse and somewhat narrowed behind the eyes, immaculate in both sexes; 

 clypeus shagreened with scattered punctures, apically subdeplanate, 

 rounded, and in J sometimes rufescent ; face centrally elevated. 

 Antennae not elongate, of (J apically gradually attenuate and as long as 

 the body, of 9 subfiliform and not longer than the abdomen ; both sexes 

 with joints ten to seventeen or twenty white above ; basal flagellar joint 

 only one-third longer than the second. Thorax stout and punctate ; ^ 

 with pronotum and a small callosity before the radix nearly always white ; 

 metathorax very strongly punctate with the areae and ajjophyses entirely 

 wanting, petiolar rarely indicated basally ; spiracles linear. Scutellum 

 white, with its extreme base alone black. Abdomen fusiform, glabrous 

 and nitidulous, more pilose in (^ ; red with more or less of the basal 

 segment and sometimes the anus infuscate ; first segment slightly curved 

 and a little dilated towards the apex with postpetiole nearly twice broader 

 than the petiole ; second and third segments subequal in length ; terebra 

 hardly shorter than the ba.sal segment. Legs normal and red with the 

 coxae and trochanters black ; anterior femora rarely basally nigrescent ; 

 hind tibiae and tarsi black, with the central joints of the latter clear white 

 in J alone. Wings subhyaline, stigma and radix infuscate or ferrugine- 

 ous ; tegulae black, and, in (J > marked with flavous. Length, 

 9 — 10 mm. 



This species may be known by the colour of the legs and antennae, and 

 by the latter's discreted flagellar joints, of which the second is only a 

 little (not twice) longer than broad. It is one of the most distinct of the 

 genus, both in colouration and sculpture ; the mesonotum is intermediate 

 in its puncturation between that of E. cinctipes and of E. laeviga/or, with 

 which the short antennae of the present species ally it, though the white 

 scutellum is distinctive, as also may be considered the small glabrous and 

 nitidulous tubercle between and immediately below the scrobes. 



It occurs on umbelliferous plants in August and September; and is 

 common throughout the midland and southern counties, though I have 

 seen none from the northern. North Langwith (Prof. Carr) ; Cheddar, 



