XORTH AMERICAN BOSTRICHIDAE 25 



Gtierin-Meneville (1845) designated Apate elongatus Paykull, a 

 synonym of Stephanopachys linearis Kugelann, as the type of 

 Dinoderus Stephens. Thomson (1859) gave Apate substriatus Pay- 

 kull as the type of Dinodt rus, but this is not the species included in the 

 original description of the genus by Stephens. Waterhouse (1888) 

 stated that there can be no doubt that Dinoderus substriatus Stephens 

 ( not Paykull ) is Apate minuta Fabricius from Xew Zealand, but most 

 unfortunately the type is no longer to be found in the Bauksian collec- 

 tion. Lesne (1898) recorded Apate minuta Fabricius as the type 

 of Dinoderus and not Apate substriatus Paykull. Casey (1898) erected 

 the genus Patea for Dinoderus brevis Horn because of its 11- 

 ented antenna. Lesne (1901) placed Patea as a synonym of 

 Dinoderus. Lesne ( 1914) erected Dinodt rastt s as a new subgenus of 

 Dinoderus for three species having the first segment of the anterior 

 tarsus longer than either the third or fourth segments. 



KEY TO THE SPECIES OF DINODERUS 



1. First segment of anterior tarsus distinctly longer than either the third or 



fourth segment japonicus Lesne. p. 2". 



First segment of anterior tarsus not longer than the third or fourth 

 segment 2 



2. Antenna 11-segmented 3 



Antenna 10-segmented 4 



3. Lateral margins of pronotum extending to anterior row of rasps: basal 



segments of antenna clothed with long fulvous hairs: elytra with sutural 

 margins of apical declivity elevated: large species. 4 mm. 



pubicollis Van Dyke. p. 26. 

 Lateral margins of pronotum not extending to anterior row of rasps: basal 

 segments of antenna not clothed with long hairs; elytra with sutural 

 margins of apical declivity not elevated; small species. 3 mm. 



brevis Horn, p. 27. 



4. Pronotum distinctly bifoveolate: elytra with sutural margins on apical 



declivity not elevated 5 



Pronotum not distinctly bifoveolate; elytra with sutura margins on apical 

 declivity elevated ocellaris Stephens, p. 28. 



5. Apical declivity of elytra ocellate-punctate minutus (Fabricius). p. 30. 



Apical declivity of elytra areolate-punctate.-fo/oyeo/a^.s (Woilaston), p. 32 



Dixoderls japoxicus Lesne 



Dinoderus japonicus Lesne. 1895, Soc. Ent. de France Ann. 04: 170 (separate 

 p. 2. : 1898, ibid. (1897) 66:322.326-327: 1901, Abeille 30 : 79-80; L906, ibid. 30: 

 282; 1914, Soc. Ent. de France Bui., pp. 243-245: Froggatt, 1927, Forest In- 

 sects and Timber Borers, p. 07: Lesne, 1938, in Junk (pub.), Coleopt. Cat., pt. 

 101. p. 23. 

 Dinoderus tsugae Matsumura, 1015. Dainippon Gaichu Zensho ( II ;cueil de- 

 Borers du Japon). v. 2. p. 183, pi. 21. fig. 2 (not seen) : 1931. Nippon Konchu 

 Daizukan (Grand Atlas des Insectsdu Japon), p. 174. rig. 302: Chujo, 1936, 

 Nat. Hist. Soc. Formosa. Trans. 20 : 408. 



Browni-h black, sometimes with a small, smooth, reddish basal spot 

 on each elytron, the labrum. palpi, antennae, and tarsi brownish or 

 reddish yellow. 



Head coarsely, densely punctate; labrum and clypeus indistinctly 

 punctate, the latter clothed at sides with long, erect, yellowish ha 

 Antenna 11-segmented: funicle sparsely clothed with short, erect, yel- 

 lowish hairs: antennal club densely clothed with short, recumbent, 

 yellowish hairs: first segment oblong, twice as long as wide: second 

 segment oval, slightly narrower than first. 



Pronotum strongly convex, widest near basal third, without i'oveae 

 near base; sides broadly rounded, more obliquely anteriorly, lateral 



