ME. G. LEWIS OlSr JAPAISTESE LANGITEIID^. 



347 



Japanese Lauguriidse, with Notes on their Habits and External 

 Sexual Structure. By GtEORGE Lewis, F.L.S. 



[Eead November 15, 1883.] 



(Plate XIY.) 



The first notice of Japanese Languriidse appeared in the January 

 number of the ' Entomologist's Monthly Magazine ' in 1873 ; 

 since then one species has been described by Von Harold in the 

 M.T. Mliuch. ent. Yerein. iii. p. 59, and during my late visit 

 to Japan in 1880 and 1881 I obtained five new species, bringing 

 the total up to 15, as under : — 



Languria nara, n. sp. 

 columella, n. sp. 



Section II. 



Languria atriceps, Crotch. 



ruficeps, Crotch. 



fucosa, n. sp. 



prsetermissa, Janson. 



Section III. 



Languria filiformis, F. 

 nigripes, Crotcli. 



prseusta. Crotch. 



Microlanguria Jansoni, Crotch, 



Doubledaya bucculenta, n. sp. 



Section I. 



Languria ingens, n. sp, 



pectoralis, C. Waterh., 5 . 



convexicoUis, C. Waterh,, cS , 

 nee Bohem. I860, nee Horn. 

 1867. 



sodalis, C. Waterh. 



Waterhousei, Crotch. 

 nigritarsis, C. Waterh. 



?unicolor, Motsch. 



Lewisii, Crotch. 



geniculata, Harold. 



Languria tinicolor, Motsch., appears, with some doubt, as a 

 synonym in the list ; because, though it seems probable that 

 Motschulsky's description was drawn from what is now either 

 nigritarsis or pectoralis, bis measurements are misprinted " I5 

 by 1 line:" for this and other reasons it would be but guess- 

 work to apply his name to either of the species. 



The highest point north of the equator in which any member of 

 this family has been found is in latitude 46° in Siberia {L. Mene- 

 triesi); there are none in Europe, but I have a species from 

 Egypt. In Japan three are found in lat. 43° and ten in lat. 38° ; 

 and as the climate in the south is evidently favourable to them, 

 and some are local, we may still look for additions to the pre- 

 sent list. If the LanguriidsD do not certainly emanate from the 

 tropics, it is clearly within an area of a thousand miles of the 

 equator that they meet with the climatal environment which is 

 most essential to their welfare and specific multiplication ; and in 

 this respect resemble somewhat the Brenthidse, of which a few 



LIKN. JOUUN. — ZOOLOGY, TOL. XTII. 27 



