154 jiR. CLAUDE muhley on African 



2. INCUBITOR Linn. 



A female of this species, ditiering from tlje soraewliat un- 

 common palffiai'ctic foi'm with entirely black legs only in its lack 

 of- white flagellar and anal markings, was discovered on the 

 western slopes of Mount Kenya, on the Meru-Nyeri Road at 

 between six and eight and a half thousand feet, in the middle of 

 Februai-y 1911, in British East Africa. 



3. PLANINOTUJl, sp. n. 



A closely punctate, black female with ilavous markings and the 

 abdomen mainly red. Head constricted and narrow behind eyes; 

 mandibles, palpi, labrum, latei'al angles of the apically truncate 

 clypeus, and frontal orbits nearly to the concolorous vertical dot, 

 pale stramineous ; frons sparsely and finely punctate; face eveidy 

 punctate, centrally elevated and apically discreted. Antennae 

 centrallj^ white-banded and apically attenuate. Thorax very 

 closely punctate, dull with pronotum, ca,llosity below and an 

 elongate one before radix, flavons ; notauli fine ; metathorax 

 shagreened, with the broad and undiscreted petiolar area apically 

 transaciculate ; areola quadrate, pai-all el- sided, deplanate and 

 extending to base of metanotum, with weak lateral carinee and 

 no costulpe ; spiracles linear, apophyses obsolete. Scutellum 

 nitidulous, very finely punctate, not margined, clear flavous with 

 its basal third and the postscatellum fulvous. Abdomen elongate 

 and parallel-sided, with anus from base of sixth segment more or 

 less definitely black ; postpetiole deplanate, finely and irregularly 

 punctate ; ga.strocoeli transverse and deeply impressed, their 

 intervening space much narrower than central area of post- 

 petiole ; terebra black and a little exsei'ted. Legs normal, with 

 hind tarsi slender; indefinitely nigrescent red, with hind coxte 

 and femora darker ; hind coxa; finely punctate beneath, with 

 very large scopula?. Wings hyaline ; radix and teguke fulvous, 

 stigma red ; areolet pentagonal, as broad as high and somewhat 

 small. Length, 9 mm. 5 on\j. — Erom all species known to 

 me of this genus, to which the pale vei'tical dots and punctate 

 petiole show that it belongs, it ditfers in its nearly smooth meta- 

 notum with the parallel -sided areola extending to base ; the 

 central abdominal segments, also, are more deplanate than is 

 usually the case. — A couple of feniales were received from Algeria 

 about 1849, 1 believe from Francis Walker. 



4. SEXALBATUS Wesm. 



A. single typical male of this pakearctic species was captured in 

 Ab3^ssinia, probably about Harrar, in 1910. 



5. FossiPEli, sp. n. 



A closely punctate, black male with profuse stramineous-white 

 markings, and the abdomen and legs mainly red. Head trans- 



