( 370) 



llah. Baa-Kraeng, S. Celebes, 5000 feet, February 1890 (H. Frnhstorfer). 

 In the structure of the iuiteiiiiae iillieil to .V. saperdoides (1833) and recti- 

 lineatm (1894). 



27. Xenocerus whiteheadi sp. nov. 



c?. X. Sf'miluctuom stnictura similis; prouoto fortius iJimctato. 



Ca])ut bivittatum. I'roiiotum tribus vittis fere !ie(juilatis albis iiotatuiu, vittis 

 lateralibus antice jiosticeque abbreviatis. Elytra albo siguata: macula eloiigata 

 sat lata obliqua a margiiic basali ad striam octavam desceudeute, fascia transversa 

 recta postmcdiaua ntriuque striam uouam attingente qnam macula humeralis 

 aiigustiore, in sutura jianlo iuterrnpta, pnncto subapiculi in utroqne elytro. Pygidium 

 utriuque albo vittatum. 



Sterna nigra; prosternnm macula elongata lateral! aiiteriore, altera subrotuudata 

 posteriore, mesosternum macula lateral! obliqua, metastcrnum plaga magna subapicali, 

 albis notata, Segmenta abdominalia 1" — 4" apice lateraliter albo signata. Pedes 

 uigri, tarsis art. 1" et 4" dimidio basali, "i" basi extroma, albis. 



?. Colore maris; abdomiue pube alba magis exteusa; auteunis art. 6"et 6" basi, 

 S" et 9° totis, albis. 



Ilab. Leite, August 1896 (J. Whitehead) ; several s])ecimen8. 



Resembles A', hnmcmlia (18T5) from New Guinea, but differs in the abbreviated 

 lateral vittae of the prothorax, the more strongly jnmctured basal half of the jironotum, 

 the entirely different form of the humeral mark, the presence of white pubescence 

 on pygidium, meso-metasternum, abdomen, aud tarsi. 



Mr. Whitehead found a female specimen of whiteheadi on Samar, June — July 

 1896, which differs from the /t'wa/es from Leite in the greater width of the markings 

 of the el)i;ra, especially of the subapical spots. 



28. Xenocerus websteri sp. nov. 



i ? . A. niger, supra brnnnesceuti-uigro tomeutosns, albo signatus. 



Ca])Ht bivittatum, absque liuea mediana occipitale. Antennae art. $ 4°, 5°, 

 10° basi, 9" apicc albis, 3'" brevissimo, in speciminibus parvis compressae, art. 8" 

 basi excepta et 9° toto, 10" basi albis; ? elytrorum basin paulo sui)erante8, art. 4° et 

 .0" basi, 6" dimidio apicali, 7" toto albis. Prothorax latitudine paulo longior, 

 latcribus rotundatus, trivittatus. Elytra ad sutnram jiaulo imi)ressa; vitta snturali 

 lata interrupta, parte posteriore divisa ntriuque jiaulo obliijne versus latus dilatata, 

 variante; liuea dorsali in .stria 4'' sita antice versus humerum flexa delude in margine 

 basali cum vitta sutnrali coujnncta, antice saepe iuterrnpta, iu medio ramnm brevissi- 

 mum versus suturam emittente ; lineola lateral! antemediana in margine extremo 

 versus posticum dilatata a margine oblique antrorsum ad striam octavam ascendente; 

 gutta postmcdiana intra strias sejitimam et nonam; lineola anteapicali elytri margin! 

 parallela. Pygidium sine vittis, vol vittis obsoletis (spec. typ.). 



Infra albo vel luteo pubescens, pube in medio saepe sparsiore, metasterno 

 macula fusca lateral! notato. Pedes plus minusve grisescentes, tarsornm articulis 

 basi (lensius pubescentibus, apice nigris. 



Ilab. New Hanover, March — April 1897 (Captain H. C. Webster). A series 

 of both sexes; type : c? with the basi-dorsal line of the elytra not interrupted. 



The dilated portion of the sutural vitta is variable in shai)e and size; it is 

 generally larger iu the ? than in the 6 ; in most J J it forms a triangle, which 



