1889.] 229 



ON A SPECIES OF NOSODENDBON FROM JAPAN. 

 BY Q. LEWIS, F.L.S. 



The genus Dendrodipnis was formed by Wollaston in 1873 (Ent. 

 Mo. Mag., vol. x, p. 33), to receive an insect which is common in 

 Japan in the exuding and rancid sap of a species of Celtis, which 

 grows in the warmer parts of the Archipelago. Some fine trees of 

 this Celtis grow on the outskirts of Nagasaki arid at Shiba, near 

 Tokio, and at either place Dendrodipnis ccenosus, Woll., and its imago 

 and larva may be taken abundant any day in June or July. 



In Dendrodipnis the elytra are smooth, and in Nosodendron the 

 wing-cases are ornamented with tufts of small spines, set in longitu- 

 dinal rows, but I cannot see any valid reason for separating the species 

 generically. Van de Poll has also expressed the same view in a recent 

 letter to me. The Byrrliidce, as a family, are very poorly represented 

 in Japan, so far as my collection enables me to judge, for I only met 

 with three examples of Byrrhus during the tour of 1880 and 1881, 

 and the only abundant species in this section belong to the genera 

 Simplocaria and Limnichus. 



NoSODENBKON ASIATICUM, 71. Sf. 

 Ovatum, supra convexum, opacum nigrum; elytris punctis fasciculato- 

 villosis, pilis brunneis ; undique punctulatum. Long., 4X4J lines. 



Black, opaque, oval, convex above ; forehead immarginate, rather convex be- 

 tween the eyes, somewhat densely punctulate ; thorax with similar sculpture, with 

 four patches of brown setose spines in the median area (visible only in fresh 

 examples) ; scutellum triangular ; elytra punctulate, with five rows of maculations 

 covered with brown setse, the first four rows consisting of 8 to 10 tufts, the outer 

 row with about 6 ; the prosternal lobe is densely punctate ; the mesosternum is 

 deeply incised in three places for the reception of the base of the presternum and 

 the anterior coxae. 



This species is more perfectly oval than fasciculare of authors, 

 the spinose maculations are similarly placed, but the spines are more 

 dense and more rigid, the elytra are less shining, and the punctuation 

 beneath is closer. The punctures on the metasternal plate are also 

 smaller in asiaticum. 



Hab. : Japan. Taken on Nantaizan, Ichibosayama, and other 

 mountains. 



1, Queen's Ride, Barnes : 



January 2Uh, 1889. 



