l6o BRITISH ICHNEUMONS. 



and not compressed apically, of 6 sub-linear ; black with segments two 

 and three, and in $ base of fourth, red or fulvidous, of c? sometimes 

 flavous with infuscate disc, third of S quadrate ; six to eight and some- 

 times fifth, as well as terebra, white-marked in $ , c? usually with a flavous 

 mark on seventh ; post-petiole finely aciculate, bicarinate, angles obtuse ; 

 gastrocaeli very small, of 6 circular ; terebra very stout and distinctly 

 exserted ; $ with second and third ventral segments plicate, 6 valvulae not 

 sinuate. Legs normal, onychium of intermediate tarsi thrice longer than 

 penultimate joint ; fulvous or red with coxae, trochanters, and apices of 

 hind femora, tibiae and tarsi, black. Wings slightly clouded ; stigma 

 fulvous, tegulae piceous. Length, 12-15 "^i^^- 



Besides its colour, this species may be at once known from the last by 

 the extent of the ventral fold and the absence of sinuation in the valvulae. 

 The type form is that of the S vvith immaculate anus. /. cotitamitiatus is 

 a variety with the last three or four segments white-marked ; the scape 

 beneath, tibiae and central segments, flavous ; it is 15 mm. in length. 



This would appear to be of more frequent occurrence than the pre- 

 ceding and has a wider continental distribution. Stephens says the male 

 is rather uncommon near London, and at Netley, in June ; it has been 

 captured, at Bickleigh, in Devon, by Bignell, early in June ; and upon 

 several occasions it has been bred from Nonagria typhae and N. sparganii, 

 in August. Schm. adds Amblyptila acanthodacfyla as an occasional host. 



PROBOLOIDES, Moriey. 

 n. n. 



Head somewhat tumidulous, rounded and hardly narrowed behind the 

 eyes ; cheeks sub-buccate ; mandibles stout, apically obtusely bidentate 

 with the upper but little longer than the lower tooth ; clypeus distinctly 

 discreted, apically sinuate or broadly rounded, often marginately reflexed ; 

 face short and convex ; frons concave ; vertex emarginate next exterior 

 ocelli. Antennae filiform, of $ somewhat attenuate apically ; scapes sub- 

 contiguous ; flagellar joints of $ moniliform, of $ cylindrical. Thorax 

 elongate, obsoletely punctate and nitidulous ; meso- very little higher than 

 meta-notum, which latter is completely areated ; spiracles linear, apophyses 

 wanting, sternauli rarely strong. Abdomen obsoletely punctate and 

 strongly nitidulous ; basal segment with spiracles beyond the middle, and 

 a central dorsal intumescence, but without sculpture ; gastrocaeli nearly 

 wanting, extremely superficial ; ventral segments two and three of $ 

 plicate, the ultimate of 9 not reaching base of the slightly exserted terebra. 

 Legs normal ; coxae sub-glabrous with a few large scattered punctures, 

 but no scopulae ; onyches simple. Wings normal, silaceo-hyaline ; areolet 

 pentagonal, broad or coalesced above ; radial nervure externally arcuate. 



The lack of sculpture in the basal abdominal segments of this genus 

 somewhat resembles that of A/oaiyia, some forms of which the male of 

 P. glahrafus superficially approaches ; the petiolar intumescence allies it 

 strongly with Frobolus, near which indeed must be its most natural 

 position ; this, however, is at present precluded by the retraction of the 

 female's hypopygium, which unmistakably places this genus among the 

 Oxypygini. Here the irregular clypeus points to an affinity with Chasviias, 

 and the superficial gastrocaeli with Exephanes. 



