COLEOPTERA 287 



Macranillus, gen. nov. 



Oculi vestigiales. Caput angustum. Elytra integra. 



There is a marked difference between the eves of this o-enus and those of Neso- 

 microps, and this induces me to separate the two, tliough no other differential characters 

 have been detected. 



In Macranilhis the eyes are not pigmented nor facetted, but are represented by 

 two small, smooth, slightly raised areas. The frontal grooves are longer than in 

 Nesomicrops, correlatively with a rather larger size of the head. 



(i) Mac?-ain7/us coec?is, sp. nov. 



Ferrugineus, elytris subtiliter striato-punctatis. Long. 2| mm. 



This insect is more robustly formed than Nesoviicrops kauaitmsis, and has the 

 elytra less pointed behind, and more delinitely punctate. The antennae are stout, dark 

 red in colour, the base paler. The thorax is slightly transverse, not greatly narrower 

 than the elytra, otherwise formed much as in A\ kanaiensis, the lateral margins rather 

 stronger, the median channel fine. Elytra a little shining, the striation rather less 

 developed than in N. kanaiensis, but the punctures a little more distinct. Legs red, 

 rather stout. One specimen. 



Hab. Kauai. High plateau, August 1896 (Perkins). 



T.A.CHVS Stephens. 



The species of this genus are of comparatively little interest. It is doubtful whether 

 they are really precinctive. They are most obscure, minute insects of a kind that occurs 

 in various other parts of the world. 



(i) Tachys oahucusis, Blackburn. 



Tacliys oahncnsis Blackburn, Ent. Mo. Mag. xv. 1878, p. 158. 



Hab. Oahu. Not uncommon on salt marshes near the sea (Blackburn). 



(2) Tachys arcanicola, Blackburn. 



Tachys arcanicola Blackburn, 1. c. 



Hab. Oahu. Very local, but not rare ; under bark in some mountain localities, at 

 an elevation of about 1500 ft. (Blackburn). 



(3) Tachys atonins, Blackburn. 

 Tachys atonnis Blackburn, 1. c. 



Hah. Oahu. Not rare, in moss, in mountain localities, at an elevation of about 

 1500 ft. (Blackburn). 



F. H. III. 17 



