PEELIMINAEY CLASSIFICATION OF SCOLYTOIDEA. 221 



'perda Linn. (1758, p. 355 and 1767, p. 563). Therefore it appears 

 that the name Tomicus she aid stand, with Hylesinus piniperda (L.) 

 Fab. as the type. The sUght difference in the description by Fabri- 

 cius of the insect he identified as Linnseus's species does not warrant 

 the conclusion that it was different, because the species has the 

 characters mentioned. 



The species piniperda L. 



piniperda L., Dermestes Lkmseus, 1758, p. 355; 1761, p. 143; 1767, p. 363. 

 pinipei'da L., Bostrichus Fabricius, 1775, p. 60; 1792, p. 367. 

 piniperda L., Hylesinus Fabricius, 1801, p. 392. 

 piniperda L., Tomicus Latreille, 1802, p. 203. (Type of genus.) 

 piniperda L., Blastophagibs Eichiioff, 1864, p. 25. (Type of genus.) 

 piniperda L., MylopMlus Eichhoff, 1878, p. 400. (Type of genus.) 



Genus HYLASTES Erichson. 



Erichson (1836, p. 48) described the genus Hylastes to mclade 

 BostricJius ater Paykull, Bostriclius angustatus Herbst, etc., stating 

 that BostricJius ater Fab. was not a scolytid. Therefore, since 

 BostricJius ater Paykull is a good species, it stands as the type of the 

 genus Hylastes Ericlison, as designated by Thomson, 1859, p. 146. 



Genus CHYPHALTJS Erichson. 



Erichson (1836, p. 61) described the genus CrypJialus to include 

 Apate tilise Panz., Apafe fagi Fab.^ and BostricJius asperatus Gyll. 

 Thomson (1859, p. 146) designated (BostricJius) CrypJialus asperatus 

 Gyll. as the type and (p. 147) referred CrypJialus tilix Panz. to his 

 monobasic subgenus Emoporus and (1865, p. 360) CrypJialus fagi 

 Fab. to Emoporus. 



HypotJieneinusWestw., 1834, p. 34; isrTiopori^Thom., 1859, p. 147; 

 TrypopJilceus Fairm., 1868, p. 105; StepJianoderes Eichh., 1871, p. 

 132, and CrypJialoides Form., 1908, p. 91, are all sufficiently distinct 

 from CrypJialus Erich, and from one another to stand as separate 

 and distinct genera; therefore they should not, in the opinion of the 

 wiiter, be considered as subgenera of CrypJialus. 



Genus HYPOTHENEMUS Westwood. 



Westwood (1834, pp. 34, 36, PL VII, fig. la to h) described the 

 genus HypotJienemus "with eruditus Westw. as the only species and 

 mentioned and illustrated a three-jointed fanicle of the antemia as 

 one of the distinguishing characters. 



Duvall (1868, p. 105, pi. 33, fig. 161) examined specimens from the 

 type series and redescribed and figured the species, and referred to 

 the funicle as having bat three joints. 



Eichiioff (1879, p. 165) referred the genus HypotJienemus Westw., 

 and species eruditus Westw. to synonymy under StepJianoderes 

 59026°— 15 5 



