CAJIKRON, FOSSOKKS. 269 



iiiAM, Ann. Mag. Nal. Ilisl. Ser. 7, X, 1002, 217; SCIILKTTKUKI!, Ann. d. 1. Soc. Knl. 

 de Belgique, N\\V, 13; Si AIH.I.M \\.\, Uyin. Ost-Afrikas, 45, 22; GRIBODO, Ann. d. Mas. 

 Civic, di (lenova, XVI, -J 14. 1; /. C. r2i I, 298; MA<;RKTTI, /. o. r2i XIX, 601; /. c. 184, 

 576; Fox, Proc. Aead. IMiil. 1896, 552; KOHL, Denkschr. d. Mathern.-Naturwiss. d. Kais. 

 Akad. d. Wissen. Wicn, 1906, 1S9. - ticeli/tltron ayi/iif/itm. W. F. KIRBY, H. 0. FORBES, 

 Nalur. Hist, of Sokolra and 'Ahd. d Kuri, 240, 10. 



Kil/in<tii<lj<ir: Kibonolo, 13001900 m. 15th November, September. Meru 

 low lands, 2nd September. 6 examples. - - A widely spread African species. 



Pliiliintlius trianguluni, var. diadcma, F. 



Cnihro diiidt ma. FAR., Spec. Ins. 1, 471. Pliihnithns </i<i</<'ni, FAB., Skrivt. 

 Naturh. Selsk. Copenliagen I, pt. 127 and 225; DAHLBOM, Hym. Ear. 1, i-95; SMITH, Cat. 

 llym. Ins. Brit. Mus. IV, 471; KOHL, Ann. K. K. Naturh. Hof-Mus. Wien, 1891, 365; 

 /. c. 1896, pi. V, f. 25; J\IAC;RETTI, Ann. del Museo Civico di Storia Naturale di Geneva, 

 i -2 1 XIX, 52; /. c. 609. 



Kilii(ni(lj(i ro: Kibonoto, 1000 1300 m., September. Common. - M/ nt low lands, 

 Ngare na nyuki, November. 



In some examples the central piece of the frontal mark is obsolete. 



Philaiithus loefliugii, DBM. 



Fliilaiithus lorrt/tii/ii, DAHLBOM, Tab. Exam. Synopt. Spec. Philanth. Hym. Eur. 1, 

 495; KOHL, Ann. K. K. Ilof. Mus. VI, 1891, 351. 



KiliiiH/iH/jaro: Kibonoto, 10001300 m. May to November. One specimen has 

 a honey bee attached to it. As is well-known Philantlnis stores is nest with 



Philanthus xanthogaster, sp. nov. 



Black, the abdomen pale yellow except for the extreme base and a line down the 

 basal two-thirds of the 1st abdominal segment, a small curved line on the mesopleura? 

 behind the tubercles, the post-scutellum and a broad line, not extending to the base or 

 apex, on the sides of metanotum, yellow, the face, clypeus and a mark between the 

 antenna?, its sides projecting upwards and narrowed above of a paler yellow; mandibles 

 rufous, their base tinged with yellow, the apex black; the antenna? below, the posterior 

 part of the head (the black part of the vertex roundly dilated in the middle behind the 

 ocelli), the outer orbits, the apex of the pronotum (except in the middle where it is 

 yellowish), th'e tegube and tubercles, rufous; legs of a paler red, the coxa 1 more or less 

 black behind, the middle tibia? in front and the hinder entirely, pale lemon-yellow; wings 

 hyaline, slightly tinged with fulvous; the nervures and stigma testaceous, the stigma 

 darker, more rufous coloured than the nervures. Metanotal area very smooth and shin- 

 ing, a shallow, but distinct fovea, which becomes gradually widened towards the apex, 

 down its centre. Pygidium slightly, roundly raised in the middle, where it is finely, 

 closely punctured; the sides are more or less striated. $. Length 17 mm. 



