Byturidje 31 



DRYOPID^E 



LiARINAB 



Boving 29, 31. 



The studies of Dr. Boving ton the larvae of the beetles heretofore grouped 

 in the series Drytopoidea, Dascilloidea and Byrrhoidea indicate certain 

 changes in classification whereby the subfamilies Larinae and Helminse 

 are separated from Dryopidse. 



Lara 



21074. gehringi Darl. 29-329 Wash. Cal. 

 9590a. amplipennis Darl. 29-330 



Wash. B. C. 



Helminae 



Stenelmis Helmis 



21075. fuscatus Blatch. 25-164 Fla. 21081. dispar Fall 25-180 Cal. 



21082. arizonica^ Brown 30-90 Ariz. 



Helmis 21083. thermarum Darl. 28-5 Oreg. 



21076. brunnescens Fall 25-177 21084. koebelei Martin 27-68 Wash. 



Cal. 9628 = 9619, fide Fall 25-180 



21077. castanipennis Fall 25-177 Limnius 



Wyom. 21085. trivittatus* Brown 30-91 



21078. immunis Fall 25-178 Ct. N. J. Que. 



21079. tardellus Fall 25-179 Mass. 21086. subarcticus Brown 30-241 



21080. ampliatus Fall 25-179 Mass.-Va. Que. 



ptilodactylid;e 



Ptilodactyla 



21087. equilobata Chapin 27-245 



Tex. 



21088. exotica Chapin 27-246 111. 



HELODID/E 



Cyphon 



21089. confusus Brown 30-91 Que. 



DASCILLID^E 



Macropogon 



21090. dubius Brown 29-273 B.C. 



21091. cribricollis Brown 29-274 



B.C. 



21092. rubricoUis Pic 27-34 Cal. 



BYTURIDiiE 



The genus Byturus is found on larval characters to belong nearer to the 

 Anthicidse than the Dermestidae and is separable as a family. The 

 Dermestidae are divided into two subfamilies, Dermestinae and At- 

 tageninse. The genus Thylodrias is apparently included in the latter. 



