A CoNTRiüirriON to the K.so\vi,ki);;e O" thk Nw'koitf.i ojs Insects ofSocjii Saciiai.ien. 137 



* Hitherto unknown from SoiUh Sa^lialien, but recorded from the other regions of Japan, 

 t Hitherto unknown from South Saghalien, as well as all other regions of japan (unrecorded 



species to the Japanese fauna). 

 ° According to Prof. Matsu.mlira. 



Ffoni my studies, as showing in the above tabic, twelve species have 

 been added to the netu-optcroiis fauna of South Saylialien. y\mong tlie new- 

 ly added species, the four could be identified with species hitherto known 

 outside of Japan, but from Europe or Sibei'ia. 



Furter more, all the species listed above are interesting and worthy to 

 mention, at least for their distribution. It is an interesting fact that the proper 

 species of Saghalien are very few, namely only two, at present. However, 

 all the species in the region just referred to can make into the following 

 bundles by means of the range of geographic distribution. 



(i) Species distributed in Saghalien only 2 



(2) Species distributed frotii Europe or Siberia to Saghalien 5n 



(3) Species distributed from Europe or Siberia to Japan > 1 5 



proper through Saghalien lO;;^ 



I 18 



(4) Species distributed from Japan proper to Saghalien 8) 



Total 25 



These data will give some valuable hints to the geographic distriiKition 

 of insects in Japan, but ftirther discussions on the subject will be postponed 

 for the future study. 



December ig22. 



In the Entomological Ladoratoiy, 



Hokkaido Agricultural Experiment Station, 

 Sapporo, Japan. 



# # jt Sit Literature cited. 



I. Banks, N. — New Trichoptera from Japan : Proc. Ent. Soc. Wash., vol. VIT, nos. 2-3, pp. 106- 



112, pi. in (1906). 



2. . — Synopses and Descriptions of Exotic Neuroptera: Trans. Am. Ent. Soc, vol. XXXIX, 



pp. 201-242, pis. XXIII-XXVI (1913). 

 3. BURMEISTER, H. — Handbuch der Entomologie. Band II, pp. 882-1004 (i^JQ)- 



