NORTH AMERICAN BOSTRICHIDAE 27 



the area between the rows rather finely, closely and ocellately punctate and 

 pilose, the hairs fulvous and seinierect, the posterior half distinctly and mod- 

 erately, closely punctate with ocellate punctures, the punctures somewhat larger 

 than in front and slightly asperate on disk, the sides with long fulvous hair. 

 the lateral margin distinct and just reaching the end of the anterior row of 

 rasps, the hind angles well rounded. Elytra slightly less than twice as long 

 as prothorax and not quite twice so long as wide; coarsely, moderately densely, 

 regularly and ocellately punctured, the punctures larger than on pronotum and 

 with slight tendency to form rows near suture; the surface sparsely clothed 

 with short erect fulvous setae, more numerous on declivity, the suture slightly 

 elevated on declivity and with faint sulci on either side ; the lateral margin at 

 first obliquely curving away from the base, then horizontal at middle and again 

 gradually and obliquely curved downwards to the apex. Beneath rather finely. 

 sparsely punctate anteriorly, more finely and closely on the abdomen, subopaque, 

 and pilose. Length 4 mm., breadth 1.5 mm. 



This species differs from D. brevis Horn, the only other species from this 

 country in the genus as it is now restricted by Lesne by being considerably 

 larger, proportionally longer, with eleven-jointed antennae instead of ten, by 

 having the lateral margin of the prothorax reaching the first row of rasps, the 

 prothorax more distinctly pilose anteriorly and laterally, and by having the 

 lateral margin of the elytra obliquely retreating from the base and forming an 

 angle where it meets it, the sides of the elytra near the base therefore narrower. 

 Its only close relative is apparently D. nitidus Lesne from the Marquis Is., a 

 species which possesses also eleven-jointed antennae and has the lateral thoracic 

 margin reaching the anterior rasps. It, however, differs from this by possessing 

 an aural pilosity, ocellate punctures on both head and prothorax, and a distinct 

 pubescence of the sides of the prothorax. It can not be the unrecognized D. 

 ocellaris Steph. either, for the elytral punctures are not 'disposed in striae' and 

 the antennae piceous. 



Type and nine paratypes in my collection, all collected by myself at Los Angeles, 

 California. They were secured many years ago and, as I remember it, dug out 

 of some mesquite cord wood stored in our cellar for fire wood. Just where the 

 wood was cut, I could not say. 



Dinoderus brevis Horn 



Dinoderus brevis Horn, 1878, Amer. Phil. Soc. Proc. 17 : 549, 550-551 ; Anonymous, 

 1894, Insect Life 6 : 274 ; Chittenden, 1895, Insect Life 7 : 327-328 ; Lesne, 1896, 

 Soc. Ent. de France Bui., p. 334 ; 1897, Bui., p. 147 ; 1898, Soc. Ent. de France 

 Ann. (1897) 66: 323, 331, figs. 11, 19; 1899, Mus. Civ. Genova, Ann. (ser. 2) 

 (1898) 19: 630: 1904, Abeille 30: 154; Jakobson, 1913. Kiifer Russland, pt. 10, 

 p. 802; Stebbing, 1914, Indian Forest Insects, pp. 143-144; Runner, 1919, U. S. 

 Dept. Agr. Bui. 737, p. 29 ; Lesne, 1926, Treubia 7 : 118-119 : Beeson and Bhatia, 

 1937, Indian Forest Rec, New Ser.. Ent 2 : 225, 228, 233-253, 309-320, fig. 2 ; 

 Lesne, 1938, in Junk (pub.), Coleopt. Cat., pt. 161, p. 23; Belkin, 1940. Ent. 

 News 51 : 193 ; Boyd, 1944, N. Y. Ent. Soc. Jour. 52 : 200. 



Reddish brown, pronotum usually darker, the palpi, tarsi, and 

 antennal club brownish yellow. 



Head coarsely, densely, uniformly punctate; labrum and clypeus 

 sparsely punctate, the latter sparsely clothed with short, inconspicuous, 

 erect hairs. Antenna 11-segmented ; funicle sparsely clothed with 

 short, erect, yellowish hairs; antennal club densely clothed with short, 

 recumbent, yellowish hairs; first segment oblong; second segment 

 oval, as wide as first. 



Pronotum strongly convex, widest at basal fourth, distinctly bi- 

 foveolate near base; sides broadly rounded, more obliquely anteriorly. 

 lateral margins not extending to anterior row of teeth ; surface sparsely 

 clothed with very short, inconspicuous hairs, basal half finely ocellate- 

 punctate, more coarsely, distantly toward sides, apical half with con- 

 centric rows of broad, rasplike teeth, which are more prominent ante- 

 riorly, and acutely rounded at apices with the two median teeth 

 widely separated along anterior margin, the intervals between teeth 

 obsoletely ocellate-punctate. 



