16 BRITISH ICHNEUMONS. [Xorides. 



A black species with only the head and abdomen white-marked. Head 

 with the internal orbits and palpi white, latter in 9 piceous. Antennae 

 slender, immaculate, subfiliform and a little longer than half the body. 

 Thorax cylindrical ; metanotum centrally excavate, with the sides of the 

 impression obliquely striate and the centre deeply and coarsely punctuate. 

 Abdomen longer, in (^ nearly twice, than head and thorax and narrower 

 than the the latter ; of ^ slender, strongly nitidulous and parallel-sided, 

 of 9 elongate-fusiform ; basal segment a little dilated apically, twice or 

 in (J quite thrice longer than broad ; of ^ smooth and obsoletely canali- 

 culate, of 9 finely punctate ; remaining segments of 9 alutaceous with 

 at least the apical incisures membranaceously dull white, and the sixth 

 ventral protuberant ; ^ with the eighth segment much shorter than the 

 preceding, bearing two very short styles exserted from apex and, below 

 them, two broader and rather longer valvulae which are internally concave 

 and externally convex ; terebra hardly shorter than the abdomen, black 

 with the spicula castaneous. Legs slender, elongate, fulvidous ; front 

 coxae usually basally or entirely nigrescent ; hind trochanters in part, 

 tibiae, tarsi, often apex and sometimes sides of femora, infuscate ; cal- 

 caria curved. Wings subhyaline with the stigma piceous, radix and 

 tegulae stramineous or whitish. Length, 12-20 mm. 



Very little appears to be known of this species, which is probably, like 

 its congeners, parasitic on xylophagous Coleoptera, since Gravenhorst took 

 many from June to October at piled wood about Breslau. It has long 

 stood in the British list, but I can find no particular records of capture 

 nor locality ; it is said to be represented in the British Museum 

 collection. 



3. scutellaris, Desv. 

 Xorides scutellaris, Desv. Cat. 113, <? ¥. X. W ahlbergi, Holmgr. Sv. Ak. 

 Handl. 1860, n. 10, p. 65, cT ; Brisch. Schr. Nat. Ges. Danz. 1880, p. 127, s ? ; 

 cf. Thorns. O.E. viii, 774. 



Head with the postocular orbits rugulose and broader than the eyes ; 

 vertex shining, flat, irregularly and sparsely punctate ; occiput bordered ; 

 frontal orbits, in j" whole of face, and in 9 generally the facial orbits, 

 white ; palpi of $ pale and of 9 ferrugineous. Antennae slender, sub- 

 filiform and half length of the body; scape of J pale beneath. Thorax 

 cylindrical, black ; of ^ with the propleurae linearly flavous and often 

 lateral marks on the mesosternum badious ; metathorax scabrous, with 

 long white lateral hairs ; areae entirely obsolete, a central basal carina and 

 apical costulae traceable; petiolar area well defined, semicircular, glabrous 

 and nitidulous, with a central longitudinal carina ; spiracles circular and 

 apophyses wanting. Scutellum and postscutellum in both sexes apically 

 or entirely flavous. Abdomen of ^ parallel-sided, of 9 strongly punctate 

 with hoary lateral pubescence ; basal segment centrally canaliculate, of (J 

 four times and of 9 twice longer than broad ; remaining segments of ^ 

 of equal length and about half that of the first, third to seventh obscurely 

 whitish at the incisures ; 9 \^'ith the third quadrate, fourth to sixth 

 transverse and the seventh gradually sloping to the apex ; fifth ventral 

 segment slightly prominent ; terebra stout and slightly longer than the 

 abdomen, black with the spicula castaneous. Legs elongate, fulvidous; 

 hind tibiae, tarsi, upper side of trochanters and apices of femora nigre- 

 scent or black, the latter with white pubescence ; anterior legs of ^ pale 

 croceous with the coxae and trochanters flavidous ; claws of 9 short. 



