SCOTT— COLEOPTERA, LAMELLICORNIA AND ADEPHAGA 255 



more especially the basal area, appear as the darkest parts. The light and dark areas 

 are not nearly as strongly contrasted as in some species, as most of the fuscous parts of 

 the disc are not very dark. There is some variation, but the most usual arrangement is 

 shown in PI. 12, fig. 14. Ventrally the insect is black. 



The specimens from which the above description is taken differ so little from 

 Regimbart's description of B. capitatus, that I have very little doubt that they are a 

 form of that species, though I have seen no named specimens of it. The chief difference 

 appears to be in size : Regimbart gives the length as 1| — If mm. (slightly smaller than 

 B. geminodes Reg., op. cit. p. 88), whereas the specimens before me vary between just 

 under 2 and 2^ mm. (as large as, or slightly larger than, B. geminodes). Regimbart 

 uses the words " pedibus antennisque flavis," while in these specimens the feet and 

 antennae are more reddish, or fulvotis. He compares B. capitatus closely with B. gemi- 

 nodes : I have seen a specimen of B. geminodes (var. zanzibarensis) named by him, and 

 examined it side by side with specimens from the series under consideration, when some 

 of the differences mentioned by him as existing between the two species are apparent. 

 In B. geminodes there is no transverse ridge right across the head at the base of the 

 clypeus : the two longitudinal pale vittse on the front part of each elytron are entirely 

 separated fi-om one another and from the lateral margin, whereas in B. capitatus they are 

 united in front to it and to one another by the oblique transverse vitta described above. 

 There are variations in arrangement of light and dark markings, but this last character 

 is maintained throughout, and it is this oblique vitta which gives to B. capitatus its 

 characteristic elytral pattern as contrasted with that of B. geminodes etc. 



Loc. Aldabra : Takamaka, X. 1908 (Fryer). Madagascar, near Diego Suarez 

 (AUuaud). 



46. Bides sus farquharensis, sp. nov. (PI. 12, fig. 15). 



Ovalis, sat convexus, elytrorum lateribus regulariter curvatis, nitidus, pedibus 

 antennisque flavis, his apice parum infuscatis ; capite flavescente, postice et ad oculos 

 infuscato, tenuissime punctulato, utrinque ad basin clypei parum impresso ; pronoto flavo, 

 antice sat anguste, ad basin inter plicas late nigricante, in medio sparse, antice posticeque 

 crebrius punctato, punctis ad basin fortioribus, plicis obliquis in elytris breviter angulariter 

 continuatis ; elytris sat fortiter baud dense punctatis, tenuissime pubescentibus, stria 

 suturali profunda ad basin fere attingente, nigricantibus, margine laterali flavo antice late, 

 pone medium parum, apice triangulariter dilatato, vittisque 2 longitudinalibus flavis basin 

 baud attingentibus et paulo ante medium abbreviatis : subtus stei-nis coxisque posteriori- 

 bus obscure rufescentibus, abdomine nigricante. Long. corp. circa 2 mm. 



Characterised by the rather convex oval form, the sides not being parallel but 

 curved : the thoraco-elytral angle is distinct but slight, the elytra are ampliated in their 

 middle part and their sides are gradually curved from base to apex. Also characterised 

 by the rather shining surface, the rather wide spacing-out of the elytral punctuation, and 

 the strong contrast of the light and dark markings, the former being yellow and the 

 latter almost black. There is no transverse ridge across the head at the base of the 

 clypeus, but only a slight depression on either side. The thoracic plicae are cui-ved 

 SECOND SERIES— ZOOLOGY, VOL. XV. 33 



