Ph'/odia,ius.] BRITISH ICHNEUMONS. 243 



2. coryphaeus, Gvav. 



Pliytodietiis corypliaeiis, Gr. I.E. ii. 945, excl. var. 3; Tasch. Zeits. Ges. Nat. 

 1863, p. 292. ? ; Schm. Zool. Jahr. 1900, p. 340, <? ? . (?P. segmentator, aiictt. 

 part. cf. supra.) 



Head not verv narrow behind the eyes ; epistoma a little prominent ; 

 9 with palpi and mandibh^s except apically testaceous, clypeus ferru- 

 gincous and the vertical orbits flavous ; J with the whole face, mouth, 

 cheeks and frontal orbits to occiput, flavous. Antennae slender and a 

 little longer than the body ; black, often dull ferrugineous beneath, but 

 never clear red or testaceous. Thorax black ; of 9 often with only a 

 small callosity before the radix, but more usually with subhamate lines 

 before and callosities beneath radix and a centrally interrupted meta- 

 thoracic fascia, more or less flavous ; $ with part or whole of pro- and 

 meso-sternum, and a small mark on mesopleurae, also concolourous. 

 Scutellum with a basal dot on either side, its apex, a dot or line on the 

 postscutellum, and often the freni narrowly, flavous. Abdomen shining 

 with all, or onlv the apical segments, or none of them, narrowly and 

 obsoletely glaucous-margined ; basal segment of ^ not more than half 

 as long again as, of 9 very little longer than, apically broad, in both 

 sexes explanate towards the apex, not parallel-sided nor ba.sally explanate; 

 (J with second and third segments (juadrate and the fourth, like the second 

 and following of 9 > trans\erse ; ^ valvulae exserted ; abdomen 4 mm., 

 terebra ih mm. Legs red ; coxae black with the hind pair of 9 usually 

 mainly red, ^ sometimes with the anterior entirelv and the hind ones 

 beneath flavous ; trochanters red or flavous with the hind ones and some- 

 times also the anterior partly black ; hind tarsi and a])ices of tibiae infus- 

 cate. Wings iridescent and subhyaline ; stigma and radius testaceo- 

 stramineous, radix and tegulae whitish ; areolet irregularly triangular or 

 oblique, petiolate or subpetiolate ; nervellus not intercepting above the 

 lower fourth, often almost at the lower angle, but a little higher in ^ . 

 Length, 6 — 7 mm. 



Var. Basal scutellar pale dots wanting : J with clypeus and epistoma 

 laterally, and base of mandibles, black. 



Gravenhorst distinctly says that the 9 of this species is similar in con- 

 formation to P. segmatiator (polyzonias), but with the antennae a little 

 longer and terebra a little shorter : Schmiedeknecht contradicts this as- 

 sertion by saying that it differs therefrom in nothing but colour. Accord- 

 ing to my synonymy, it difl'ers very considerably and principally in those 

 directions indicated by its author : — In its distinctly shorter legs, antennae 

 and abdomen, posteriorly broader head, lower interception of the nervel- 

 lus, longer and sparser grey abdominal pubescence, much less bright and 



K2 



