330 Mr. D. Sharp's revision of the 



adopt Mr. Eeitter's view that the antennae are 3 -jointed 

 in Fustiger, we must consider them to be 5-jointed in 

 Clavig erodes. 



The description above given of the antenna of Diar- 

 tiger may be relied on, as it has been made from an 

 antenna disarticulated by cutting off the corner of the 

 head with an antenna attached, and then cutting away 

 the portions of the head till the base of the antenna is 

 cleared and left intact. By the same mode of treatment 

 Claviger displays apparently a 6-jointed antenna, the 

 2nd joint being, however, as in Diartigcr, separated not 

 by a true articulation, but only by a constriction from 

 the 2nd joint, and it would perhaps be more accurate to 

 treat these two minute basal portions as being really 

 only one articulation. 



Diartiger fossulatus , n. s. 



Eufescens, tenuiter flavo-setosus, elytrorum apice 

 abdominiscme latere ad basin dense flavo-pubescentibus ; 

 capite, thorace elytrisque dense subtiliter punctatis, 

 baud nitidis, abdomine nitido, basi in medio fovea 

 maxima impressa. Long. 2 mm. 



Mas, pedibus intermediis trochanteribus longe, femori- 

 bus breviter, spinosis, tibiis lateraliter compressis, intus 

 ad medium dente minimo instructis. 



Very similar to Claviger foveolatus, but smaller and 

 more slender, with the head, thorax, and elytra more 

 densely punctate, the latter longer. The head is as long 

 as, but much narrower than, the thorax ; the latter is 

 smaller, rather longer than broad, deeply foveate at the 

 base ; the elytra are much longer than the thorax, very 

 finely punctulate, with a rather close, very fine, depressed 

 pubescence. 



This insect was found in company with a species of 

 Formica ? at Hakone and Miyanoshita in May, 1880 ; 

 Shimabara and Fukuhori, near Nagasaki, are also 

 localities for it. A few specimens were found at Futai 

 on the 20th Sept., 1881, in company with the same 

 species of ant ; and a single individual of a rather 

 more elongate form and darker colour was found at 

 Hitoyoshi in the month of May. 



