7G Mr. Gilbert J. Arrow's Confrilmiion to the 



latcraliter bene marginatis; antennis gracilibus, articulo ultimo 

 elongate. 



Long. 5 mm. ; lat. max. 4-5 mm. 



Hab. Philippine Is. {H. Cuming). 



The single type specimen has for more than three- 

 quarters of a century passed unnoticed amongst Coccinel- 

 hdae in the British Museum. 



It is a prettily marked insect of a light chestnut colour, 

 with the club of the antennae, the scutellum and the elytra 

 dark brown, the latter having a large oval area upon the 

 middle of the suture mahogany red and a narrow outer 

 marginal border and six large round spots encircHng the 

 sutural patch deep yellow. These spots are placed exactly 

 as in B. sex-maculafa, from which the present species 

 differs, in addition to the pale legs, antennae, thorax and 

 margins of the elytra, by its more circular outline and 

 wider pronotum. The 9th and last joints of the antennae 

 are distinctly elongate and the 10th distinctly transverse. 



Dadooertts, gen. nov. 



Corpus angustum, convexum, glabrum, nitidum, pedibus longis, 

 tarsisque simplicibus, 4-articulatis. Caput magnum, oculis pro- 

 mincntissimis. Antennae breves, cylindricae, 4-artieulatae, elava 

 fusiformi, articulis duobus elongatis quorum ultimo paulo longiori 

 exstructa. Labrum latum, antice emarginatum. Pronotum trans- 

 verse hexagonum, angulis anticis ct posticis prominentissimis, dorso 

 medio profunde sulcato. Elytra longi, singulum basi fortiter bi- 

 carinatum, humeris prominentibus. Mesosternum longitudkialiter 

 carinatum. 



Dadocerus nitidus, sp. n. (Plate I, fig. 11.) 



Purpureo-e<astaneuR, lae\as, politus, pronoto transverso, antice 

 lato, postice valde angustato, medio longitudinaliter sulcato, sulco 

 bistriato, angulis omnibus lobatis, hand acutis ; elytris valde elong- 

 atis, regulariter attenuatis, apicibus separatim rotundatis, humeris 

 prominentibus, carinatis, carina retrorsum producta ad elytri 

 partem tertiam, carina secunda intcriori breviori striaque jiuxta- 

 suturali fortiter impressa. 



Long. 4-5 mm. ; lat. max. 1*5 mm. 



Hab. Borneo, Sarawak : Kuching (A])ril), Quop 

 (March). 

 Two specimens of this remarkable insect were found by 



