STAPHYLINIDAE. 



27 



times broader than long, tlie 10th short and stout, a Httle longer than broad ; 

 the whole insect very finely and closely punctured, and with a fine yellow 

 pubescence. 



Upolu : Apia, vii.1924. Three examples. Type in the British Museum. 



20. Gyrophaena albidicornis Bernh. 



Denksclvr. K. AJcad. Wiss. Wien, MatJi.-Natunv. Kl., Vol. Ixxxix, p. 689, 1913. 



As Dr. Bernhauer remarks, the characters are difficult to see, and I have 

 accordingly dissected out the last two abdominal seg- 

 ments, a figvire of which is here given. (Text-fig. 2.) 

 It will be seen that the 7th segment is furnished in 

 the middle just before the posterior margin with a 

 pair of small tubercles, the lateral margin of the 8th on text-fig. 2.— Gyrophaena 

 each side is produced into a short triangular tooth, and albidicornis Bernh. ; 



the posterior margin of the segment between the teeth tergites 



. of male. 



IS very feebly bismuate. The two tubercles on the 7th 



segment are present in the five males examined by me. 



Upolu : Malololelei, 2000 ft. above the sea, 30.xi.l924. Eighteen examples. 



21. Coenonica buxtoni, sp.n. 



Shining ; head and thorax black, elytra yellow, more or less infuscate on 

 the scutellar and postero-external angles ; abdomen brown, the posterior 

 margins of the segments rufescent, the 6th segment black. Antennae black, 

 the first three joints testaceous. Legs testaceous. Length 2'75 mm. 



Colour as in C. puncticollis Kr., smaller, the head and thorax much 

 more finely punctured, the latter much less transverse and less dilated in front. 

 Head lightly impressed on the vertex, the whole surface finely and sparingly 

 punctured. Antennae with the 2nd and 3rd joints of equal length, 4th about 

 as long as broad, 5th to 10th transverse, gradually increasing in breadth, the 

 penultimate about twice as broad as long. Thorax about one-third broader 

 than long, widest just before the middle, the sides rounded, more strongly 

 narrowed behind and slightly sinuate before the obtuse posterior angles ; before 

 the middle of the base transversely impressed, and with a short, obsolete diver- 

 gent impression on each side of the middle line and united with the basal 



