ICHNEUMONIN^ IN THE BRITISH MUSEUM. 171 



I consider the g'enotype more remarkable in its large and remote 

 gastrocoeli, .siibcubical head, which is no narrower than the thorax, 

 the reflexed terebra, and the very broad cheeks which are 

 anteriorly hardly narrower than the eyes. In all species the 

 metathoracic spiracles are suboval. 



1. DIMIDIATUS, Sp. n. 



A black species with the thorax and petiole red, anus and 

 trochanters white. Head transverse, deep black, and posteriorly 

 narrow ; frontal orbits broadly, and centre of the external ones 

 narrowly, white ; face and clypens black, deplanate, closely punc- 

 tate, discreted, with the latter broad and apicallj- truncate ; palpi 

 white. Antennfe filiform, broadly white- banded -with the basal 

 joints rufescent beneath. Thorax cylindrical, dull and brick-red 

 with pronotum white and prosternum nigrescent ; mesonotum 

 closely shagreened, with elongate but superficial notauli ; meta- 

 thorax somewhat short, closely punctate ; areola as broad as 

 long, apically truncate and basally rounded, emitting distinct 

 central costulae ; basal area entire, the petiolar subvertical and 

 transaciculate ; apophyses wanting, spii'acles exactly ovate. Scu- 

 tellum shining, quadrate, sparsely punctate and laterally mai'gined 

 throughout. Abdomen deep black, with the first segment brick- 

 red ; three basal segments dull, the first convex and shagreened 

 with prominent lateral tubei-cles; thyridii transverse-linear, 

 intervening space very nai-roAv : segments five to seven deplanate, 

 quadrate and strongly nitidulous, the seventh white; terebra 

 slender, black, slightly exserted. Legs black wdth the anterior, 

 except basally, subtestaceous ; all trochanters, except apices of 

 hind ones, pure white and calcaria subconcolorous ; hind coxae 

 simple. Wings hyaline and somewhat small ; tegulte and stigma 

 dull ochraceous ; areolet pentagonal and not large ; basal nervure 

 continuous. Length, 9 mm. 5 • — Certainly allied to the genus 

 THccelotus in its abdominal structure. — Taken at Durban during 

 1902 by F. Muir, ex coll. D. Sharp. 



2. POLiTANUS, sp. n. 



A black species with most of the thorax and legs testaceous, 

 and the anus white. Yery similar to the above species in struc- 

 ture, but with the basal segment black ; the whole metanotuni 

 with frenum and a central spot at mesonotnl apex black; the 

 external orbits broadly, with the face and mouth except longi- 

 tudinally in the centre, white ; the legs are not white- marked 

 and the areola is a little transverse. Length, 7 mm. $ only. — 

 Captured at Western Aidiole during the middle of October 

 1911, at between 4500 and 5000 f pet, in Uganda. Phasogenini 

 appear rare in Tropical Africa ; of the twenty species recoided 

 from the Continent, no more thaii four are known south of the 

 Sahara, besides those here described. 



