504 



FAMILY XV. — CORYLOPHID^E. 



III. Sericoderus Steph. 1829. (Grv, ' 1 silken + skin. ") 



Small oblong or ovate pubescent species having the antennal 

 club 3- jointed (Fig. 180. No. 3) ; elytra narrowed behind, their tips 

 truncate ; tarsi slender in both sexes. One species has been taken 

 in the State, while two others may occur. 



KEY TO INDIANA SPECIES OF SERICODERUS. 



a. Elytra more strongly narrowed from base to apex. 



J). Color pale dull yellow; thorax with a fuscous spot at apex; length 

 .9-1 mm. flavidus. 

 Kb. Elytra piceons, yellow at tips; thorax dull yellow, the subapical spot 

 darker ; length .8 mm. 966. obscurus. 



an. Elytra feebly narrowed, the form more quadrate; color pale dull yel- 

 low ; length .8 mm. subtilis. 



S. flavidus Lee. was described from New York and Lake Su- 

 perior and probably occurs in the northern counties. S. subtilis 

 Lec is known from southern Illinois and Florida. 



966 (3026). Sericoderus obscurus Lec, Proc. Phil. Acad. Nat. Sci., VI, 

 1852, 143. ' 



Oblong, quadrate. Thorax broadly rounded in front, dull yellow with 

 a piceous spot at apex. Elytra finely and rather densely punctate, dark 

 reddish-brown or piceous, the truncated apex yellowish. Length .8 mm. 



Marion. Putnam and Vigo counties; scarce. March 5-May 2. 



Saciurn lugubre Lec. thorax as long as wide, elytral punctures 

 and pubescence sparse, color piceous. length 1.7 mm., and 8. obseu- 

 rum Lec, thorax wider than long, elytral punctures and pubescence 

 dense, color pieeous-brown, length 1.6 mm., both have a range which 

 may include Indiana. The antenna of Saeium is shown in Fig 

 180, No. 8. 



IV. Mo lamb a Casey. 1900. 



Small oval species having the antenna? rather short with a stout, 

 compact club, the seventh joint enlarged, the fifth normal. (Fig. 

 180, No. 6.) They were mostly formerly classed under Sacium. 

 Three have been taken in Indiana. 



KEY TO INDIANA SPECIES OF MOLAMBA. 



a. Elytra each with a transverse yellow spot or band just behind the mid- 

 dle. 



h. Yellow markings of elytra an entire crossbar located behind the 

 middle; pubescence coarse, distinct. 967. fasciata. 



lb. Yellow markings of elytra a subijuadrate spot located very little be- 

 hind the middle. 968. ornata. 



