'30 Mr. H. Scott on CoiylophiJce /»•()//« the 



Ovate, very convex, shining-, snioofcli (not at all aluta- 

 ceous), and quite glabrous above ; b )dj above and beneath 

 and head pitchy fuscous; legs, palpi, and antennae testaceous, 

 clubs of tlie latter infuscate. Head iinpunctate. Thorax 

 with its base sinuate on eitiier side and produced backwards 

 in the middle, with lateral margins (seen tVo:n the side) 

 sligiitly sinuate in the middle, hind angles uearly riglit 

 angles; with a strong basal series of rather elongate punc- 

 tures, becoming obsolete at the sides, further removed froui 

 the actual base in the middle than at the ends of the series 

 [it recalls the basal series of some species of Acritus~^\ ; disc 

 bearing a number of very fine subobsolete punctures, but in 

 some lights and positions these are scarcely visible. Elylr.i 

 of nearly the same length as their combined breadth, con- 

 siderably larger than the abdomen, the outline of which is 

 shown in tig. 40 appearing through the elytra as a dotted 

 line (perhaps some allowance must be made for shrinkage 

 of the abdomen) ; lateral margins not visible from directly 

 above; tlie elytra have no trace of a sutural stria, and are 

 finely and rather closely punctate; the punctures under a 

 high power appear as line elongate dashes, closer at the 

 base and suture, and almost obsolete towards the apex (like 

 those on the thorax, the punctures in some lights and 

 aspects are difficult to see owing to their shallowness). 

 Winqs ample. Metasternum (fig. 41) very convex, impunc- 

 tate in the middle, tinely punctured at the sides, the diverging 

 •striai behind the middle coxae are punctured and run in a 

 continuous curve from the anterior to the lateral margins of 

 the metasternum. Abdomen in several sjjecimens tapering 

 to a blunt point, first segment almost impunctate, each seg- 

 ment with a series of very fine short hairs, rather wide apart. 

 Front tihice of c? (tig. 42) slightly incurved towards the apex, 

 with the inner apical angle produced into a sharp iieel ; in 

 both cJ and ? (for the latter sex, see fig. 43) the excavation 

 of the outer margin towards the apex is conspicuous. No 

 other external sexual distinction is visible. 



No species in Maithews's Collection resembles this at all 

 closely, and those described since his time seem quite dilFe- 

 reut, 0. japonicus, Matth., has a basal thoracic series of 

 pujictures, but they are much finer; it is much larger than 

 O. mnnice^ has a minutely reticulate surface, and much closer 

 elvtral and thoracic punctuation. 



Log. Rangoon. Six examples, found in nest of Mania 

 striata, 9. x. 1911 {Dr, IL 11. Marshall). 



