( 187 ) 



IIiiIj.. Knilii (A. Mdcqiierys, istr^j. 



Allied to A', galiaiii Duv., from which it rhicfly diflers in the markings of the 

 elytra, as A', i/nliini has a sutural median macula shaj)ed like the head of au 

 arrow staudiiiL;' iM/fore the postiuediau fascia. 



inn. Xylotrechus socius >\f. nov. 



?. A", iiiger, griseo-pubescens ; froute carinis latcralilms arcnatis ; j)rothoracis 

 lateribns antic.e fere rectis postice rotniidatis, disco rnnjoso ; prothoracis ct elytrorum 

 siii'iiatnris iit in A', a mj nil ferns sp. nov., femoi'ibns rnfis, apicilms nigris. 



Long, lii^ mm., elytr. 6, lat. 25. 



This species bears a very close resemblance to A'. axcjidiffrHs sp. nov. : Imt the 

 lateral carinac of the front are much more arcuate, the sides of the prothoi'ax 

 much less rounded, nearly straight anteriorly, and the femora are rufous, with tlie 

 tip of the four anterior and the apical lialf "f the jiosterior ones black. 



Hah. Kuilu (A. Moci|uerys, isn^). 



131. Xylotrechus reichenowi Qucd. 

 Kuilu. Ground colour of the elytra lilack, with a ilistinct tint of bine in the 

 three sjiecimens of the Museum. 



132. Xylotrechus x-maculatus sp. nov. 

 (PL IX., fig. 14.) 



c? ?. A. niger, cinereo-pubesceus ; froute carina media obsoleta, carinis 

 lateralilras nuilis ; prothorace medio maculis dnabus parvis elytriscpie fasciis nigris, 

 fascia prima iiosthumerali angnliformi, secnuda ab liumero ad suturam, delude ab 

 sutura ad marginem externum oblique desceudentc, tertia elytris commimi suturali 

 sagittaeformi ; elytrorum ajucibns oblique truneatis, intus breviter, extus longe 

 spinosis ; mesosterno et segmentis dunbus primis abdominalibus lateraliter albo- 

 maculatis. 



Long. 11 mm., elytr. 7, lat. 3. 



Black, clothed with a dense ashy grey ])nbescence. Head with an obsolete 

 median carina ; of the lateral ones there is scarcely a trace. Prothorax convex ; 

 sides more rounded posteriorly than before the middle ; centre of the disc with 

 a transverse black macula, behind whicli is a faint grey spot : sides of the base with 

 a small white spot close to the margin. Scutelliun grey. Elytra with au anguli- 

 form marking at the sides behind the shoulders ; anotiier line, running from the 

 shoulder to the suture and thence to the outer margin, forms a second angle : the 

 latter, together with that of the other elytron, forms au x-shaped mark ; a post- 

 median broad transverse fascia in the shape of the head of an arrow. Apex of the 

 elytra feebly convex, obliquely truncate, the outer angles strongly s]iined, the inner 

 ones shortly so. Sides of the ])osterior part of the meso- and metasternum and of 

 the two basal segments of the abdomen densely covered with a white ])ubescence. 



Hah. Kuilu (A. Moc(juerys, 1892). 



r.'>3. Xylotrechus mocquerysi sp. nov. 



(PI. IX., fig. 1.-..) 



? . .V. niger, olivaceo-cinereo-]inbescens ; froute utriu(jue k-viter carinata, carina 



niedia (ilisoleta ; iirotliorace medio macula du]dicata, lateribns nu^cida minima, 



nigris notato ; elytris macula postscutellare ferruginca et fasciis nigris notatis, 



