430 FAUNA HAWAIIENSIS 



(i) Antilissus aper Sharp. 



Antilissus aper Sharp, op. cit. p. 86. 



We have received about 80 specimens of this species, which is so far Icnown only 

 from the Hawaiian Archipelago. 



Hab. All the islands. Oahu, mountain localities (Blackburn) ; all the islands, 

 frequently from considerable elevations (Perkins). H. S. 



MiNTHEA Pascoe. 

 Minthca Pascoe, Journ. of Ent. 11. 1863, p. 97. 



(i) Minthea rugicollis, Walker. 



Ditonia rugicollis Walker, Ann. Nat. Hist. (3) 11. p. 206. 



Eulaclms hispidus Blackburn, Tr. Dublin Soc. iii. 1S85, p. 141. 



The single specimen described by Blackburn as Eulaclms hispidus has since been 

 .shown by Arrow (Ent. Mo. Mag. 1904, p. 35) to belong to the species Minthea 

 rugicollis. 



Hab. Very widespread. Tropical Asia, &c. Near Honolulu, about 1000 ft., 

 under bark (Blackburn). H. S. 



CoLOBicus Latreille. 

 Colobicus Latreille, Gen. Crust, et Ins. 11. 1807, p. 9. 



( I ) Colobicus parilis Pascoe. 



Colobicus parilis Pascoe, Journ. of Ent. i. i860, p. 202. 

 Colobicus coiiformis Pascoe, Journ. of Ent. 11. 1863, p. 124. 

 We have received four specimens of this widespread species. 



Hab. Tropical Asia, &c. Mts. near Honolulu (Perkins). H. S. 



Derolathrus, gen. nov. 



Antennae lo-articulatae, clava magna uniarticulata, coxae anteriores approximatae ; 

 intermediae fere contiguae ; posteriores distantes. Tarsi 4-articulati, articulis basalibus 

 tribus brevibus, primo occulto. 



Front of head prolonged, covering the mouth parts ; without transverse suture. 

 Antennae (Plate XVI.. fig. 10) rather short and stout, inserted under the lateral margins 

 of the head so that the basal joint is from above nearly concealed, it and the second 

 joint thicker than the following ; joints three — nine subequal rather stout, each broader 

 than long, ninth slightly broader than the eighth, tenth large, oval, forming an abrupt 

 club, and apparently consisting of three consolidated joints. 



