394 Br. G. A. K. Marshall on new 



completely fused with the unusually lar^e epimeron (shaped 

 like an elongate isosceles triangle), which is broader trans- 

 versely than the hind coxa and widely separated from it. 

 Abdomen likewise very deep, and the venter very short 

 proportionately in the median line, being there only as long 

 as (J 1 ) or slightly longer than (?) the metasternum ; on 

 the same line, ventrite 2 as long as ( <$ ) or shorter than ( ? ) 

 3+4, and ventrite 5 shorter than 2 in $ and as long as 

 2+3 + 4 in $ ; ventrites 2-4 gradually increasing in 

 length up to the elytral margin, but 5 narrowing outwardly 

 to a point in the ? (PI. XIII. fig. 5), whereas in the $ it 

 widens rapidly till on a line with the base of tergite 8 and 

 thence narrows to a point at its junction with the base of 

 tergite 7 ; the pygidium very broadly exposed, 2 mm. long, 

 formed in the ? of the 7th tergite, which is quite perpen- 

 dicular and narrows to a point at its apex ; in the <$ the 

 7th tergite is perpendicular, but the 8th slopes sharply 

 inwards beneath the abdomen, being about as long as its 

 basal width and broadly rounded at the apex ; the dorsum 

 in both sexes strongly chitinized and the tergites closely 

 interlocked, so that the abdomen forms a rigid box, like 

 in Apoderus. 



Genotype, Xlphaspis lonyiclavis, sp. n. 



The species upon which this genus is founded is so 

 aberrant and presents so little real affinity with any other 

 genus known to me that it seems necessary to place it in a 

 distinct subfamily. The broadly exposed pygidium, the 

 strongly appendiculate claws, the broadly truncate and 

 vertical mesosternal process, the mucronate tibise, and the 

 form of the rostral scrobes, all approximate it to Trigono- 

 colus, Lac, next to which it may provisionally be placed ; 

 but the quite unusual development of the scutellum, the 

 very remarkable Apoderus-\\ke form of the body (PI. XIII. 

 fig. 5), the presence of only 9 striae on the elytra, the entirely 

 different structure of the antennas and tarsi, etc., abundantly 

 distinguish it from the Triyonocolinas. 



Xiphaspis longiclavis, sp. n. (PI. XIII. figs. 3-5.) 



cJ* ? . Ground-colour rather shiny black, the elytra and 

 abdomen red-brown ; the prothorax clothed with large over- 

 lapping oval yellowish scales, except the dorsal anterior 

 margin, a large median patch, and three small ill-defined 

 lateral spots, on which the scales are replaced by recumbent 



