56 



tables of species of Lycides almost identical in colours, but 

 separated by profound structural differences, and one of 

 entirely black species may be of interest : — 



Prothorax not divided into con- 

 spicuous areolets D. melancholica, Lea 



Prothorax with conspicuous areolets. 

 Subsutural costa trifurcate near 



base T. ater, Macl. 



Subsutural costa simple. 



Elytral punctures in single series. . * 



Elytra opaque M. parvoniger. Lea 



Elytra shining M. insignipennis, Blackb. 



Elytral punctures in double series. 

 Prothorax three-areolate. 

 Apex of prothorax deeply 



notched in middle M. Icing en sis, Lea 



Apex not notched M. fuligineus, Lea 



Prothorax seven-areolate. 



Antennae of male ramose ... M. funestus,(o) Lea 

 Antennae of male not 

 ramose ' M. rufipennis, Fab., var. 



Metriorrhynchus insignicornis, n. sp. 



d • Black ; prothorax (except for a large blackish discal 

 blotch) and elytra brick-red. 



Head with rostrum unusually long and tliin. Antennae 

 long, the first six joints with long and fairly dense hairs on 

 tlie under-surface, first joint small, second minute, third long 

 and thin (about four times as long as wide), fourth about 

 two-thirds the length of third, and slightly longer than fifth, 

 the latter feebly produced on one side at apex, sixth the length 

 of fifth but strongly produced at apex, seventh to tenth shorter 

 and pectinate, eleventh thin. Prothorax moderately trans- 

 verse, seven-areolate, apex produced in middle, sides incurved 

 to middle, base trisinuate, the hind angles moderately acute. 

 Scutellum with, two rather acute tips. Elytra thin and 

 parallel-sided, with regular double rows of punctures, the 

 alternate interstices elevated. Subapical segment of abdomen 

 notched in middle almost to base. Front and middle 

 trochanters each with an acute spine, hind pair largely 

 produced and truncated; front femora flat and unarmed, 

 middle femora with a small tooth at basal third; hind pair 

 much stouter than the others, obtusely dentate about middle, 

 largely excavated on one side of base, and clothed on under- 

 surface with long hairs as on antennae; hind tibiae thicker 



(5) An allied species (probably undescribed) occurs in the 

 Madang district of New Guinea. 



