NORTH AMERICAN BOSTRICHIDAE 23 



described the species from Maine, placing it in the genus Triphyllus, 

 but Melsheimer (1653) placed it in the genus Ois. LeConte (1854) 

 placed it in the genus Endecatomus as a synonym of reticulatus Herbst, 

 and was followed bv Laeordaire (1857). Jacquelin-Duval (1859- 

 1863). Gemminger and Harold (1869). and Reitter (1911). Horn 

 1878), recognizing that rugosm Randall was the species listed under 

 that name by Dejean but was not the species described as reticulatum 

 by Herbst. placed dorsal i* Mellie as a synonym of rugosus Randall. 

 Specimens of dorsaZis from Texas are quite distinct from specimens 

 of rugosus from Massachusetts and certainly represent a valid species. 

 Endecatomus reticulatus Herbst is listed in our catalogs, but there 

 is some doubt about this European species being found in North 

 America. There are no European specimens of this species in the 

 United States National Museum Collection, and specimens from North 

 America identified as this species do not exactly agree with the figure 

 and description given by Mellie (18-48) for reticulatus. 



Subfamily DIXODERIXAE 



Dinoderinae Lesne, 1896. Soc. Ent. de France Ann. 65 : 96 : 1897, ibid. 66 : 319-350 : 

 1899. ibid. (1898) 67: 43^439: Gardner, 1933, Indian Forest Rec. Ent. Ser. 18 

 (9) : 3, 6-S (larvae i : Lesne, 1938, in Junk (pub.). Coleopt. Cat., pt. 161, pp. 

 18-25; Anderson. 1939. Wash. Acad. Sci Jour. 29: 388 (larvae). 



Dinoderina Schilsky, 1899. in Kiister and Kraa'tz. Kafer Europe, v. 36. pp. ss-tt : 

 Everts, 1901. Coleopt. Xeerlandiea, v. 2, p. 209: Jakobson, 1913, Kafer Buss- 

 land, pt. 10, pp. 801-803. 



Dinoderini Lesne, 1901, Abielle 30 : 73. 77-84 : Csiki, 1903, Rov. Lapok. X : 17 : 

 Everts, 1922, Coleopt. Xeerlandica, v. 3, p. 364. 



Dinoderidae Lesne. 1921, Assoc. Franc, pour l'Avanc. des Sci., Cong, de Strasbourg 

 (1920), p. 287: 1924. Bostrycbides de 1'Afriqne Tropicale Francaise. pp. 4.". 

 47-49. 



Psoidae (part) Boving and Craighead, 1931, Larvae of Coleoptera, p. 62. 



This subfamily is composed of six genera as follows : Rhizoperthodes 

 Lesne. Rhyzopertha Stephens. Stephanopachys Waterhouse. Dinoderus 

 Stephens. Prostephanus Lesne. and Dinoderopsis Lesne, all of which 

 are represented in the United States except RMzoperthodes and 



Dinoderopsis. 



KEY TO THE GENERA OF DINODERINAE 



1. Clypeus at sides distinctly shorter than labrum; pronotum with lateral 



margins well marked posteriorly 2 



Clypeus at sides as long as, or longer than, labrum; pronotum without 

 lateral margins, or rarely marked posteriorly with a row of small 

 tubercles 3 



2. Second segment of antenna shorter than first; pronotum with smooth 



lateral margins posteriorly, and posterior half of disk punctured; 



scutellum transverse Dinoderus Stephens, p. 24. 



Second segment of antenna subequal in length to first; pronotum with 

 crenulate lateral margins, and posterior half of disk with flattened 

 granules; scutellum quadrate Rhyzopertha Stephens, p. 33. 



3. Antennal funicle slender, clothed with long hairs, the apical segment of 



antennal club as wide as, or wider than, preceding segment: pronotum 

 ogival in front; apical declivity of elytra abruptly declivous, with a 



distinct subapical margin Prostephanus Lesne, p. 36. 



Antennal funicle robust, clothed with short hairs, the apical segment of 

 antennal club narrower than preceding segment; pronotum broadly 

 rounded in front; apical declivity of elytra regularlv, arcuately convex, 

 without a distinct subapical margin_£te phano pach ys Waterhouse, p. 42. 



