316 Mr. W. F. H. BlandforJ on 



have been identified with described forms ; the remaining 

 species, witli the exception of one or two of doubtful cha- 

 racter, I now describe. Two are referred to new raonotypic 

 genera, one of which, Graniodicticus^ is interesting and of 

 doubtful relationship. 



Previous descriptions of Ceylonese Scolytldfe are due 

 chietly to Motschulsky and Walker. Those of the former 

 author, though drawn up with some care, do not always indi- 

 cate the essential diagnostic points, so as to form a reliable 

 guide to identification. Those of Walker are, of course, 

 useless, but his types ai'e in the British Museum collection 

 and a short account of them may be of service. Under the 

 head of Tomicidai he describes fourteen species (Ann. Nat. 

 Hist. (3) iii. pp. 260, 261). Of these Apate suhmedia^ 

 Bostrichus mutilatusj B. vertens, and B. moderatiis are Bos- 

 trychida3. Bostrichus testaceus and exiguus belong to the 

 genus Xyhhorus. Platypus minax has been placed by 

 Chapuis in Crossotarsus ] P. solidus and latijinis are true 

 Platyjn. Hylurgus determinans is a Cossonid, Ilylurgus 

 concinnulus a PhJoeosinus. Ilylesiaus curvifer belongs to 

 Dianierus^ Er, {Acanthurus^ Eichh,). Tliis species is also 

 found in the Andaman Islands, and is probably the same as 

 one of the two described by Eichhoff from Sumatra. Hyle- 

 sinus despectus is a true Hylesinus^ and Hylesinus7 irresolatas 

 is an Anthribid. 



The following is a list of the species taken by Mr. Lewis: — 



•Craniodicticus mucronatus, gen. *Xyleborus iudicus, Eichh. 



et sp. n. * inter] ectus, Blundf. 



Hvlesinus despectus, Walk. * seininitens, sp. n. 



Phlceosinus detersus, Chap. perforans, WoU. 



*Crypbalas vestitus, sp. n. parvulus, Eichh. 



* — "— fuliginosus, sp. n. * dentatus, sp. n. 



*Co.«moderes monilicollis, EichJi. Eccoptopterus sex-spinosus, 



♦Scolytomimus dilutus, gen. et Motsch. 



'sp. n. *Crossotarsus Saundersi, Chap 



*DrA-ocoetes flavicornis, sp. n. venustus, Chap. 



(*Xyleborus Lewisi, Bland/.) Plat^-pus solidus, Walk. 



* asperatus, sp. n. latifinis, Walk. 



fornicatus, Eichh. * uncinatus, sp. n. 



obliquecauda, Motsch. 



The .species indicated with an asterisk have not been pre- 

 viously recorded from the island. X. Lewisi was not taken 

 by Mr. Lewis, but is inserted on the authority of an example 

 in the collection of the Rev. H. S. Gorharn. Two or three 

 undetermined species of Cryphcdus and one of Hypothenemus 

 are omitted. 



