504 FAMILY XV. — CORYLOPHID^:. 



III. Sericoderus Steph. 1829. (Gr., "silken + skin.") 



Small oblong or ovate pubescent species having the antennal 

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

 truncate; tai-si slender in both sexes. One species has been taken 

 in the State, while two others may occur. 



KEY TO INDIANA SPECIES OF SEEICODEEUS. 



a. Elytra move strongly narrowed from base to apex. 



6. Color jiale cluU yellow; thorax with a fuscous spot at apex; length 



.0-1 mm. FLAViDUS. 



66. Elytra pieeous, yellow at tips; thorax dull yellow, the subapical spot 



darker ; length .8 mm. 9G0. obscuiu;s. 



(Id. Elytra IVcl)].^- narrowed, the form more quadrate; color pale dull yel- 



lOAA-; length .s mm. , subtilis. 



.s'. /hiridiis Lee was de.serilK^d from New York and Lake Su- 

 perior and probably occurs in the northern counties. .S'. siibtiUs 

 Lee. is kno\vii from southern Illinois and Florida. 



9G0 {>',(y2{>). Serkoderus obsctrus Lee, Proe. Phil. Acad. Nat. Sci., VI, 

 1S52, 143. 

 Oblong, (xuadrate. Thorax broadly rounded in front, dull yellow with 

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

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



Jlarion, Putnam and Vigo counties; Rcarce. ]March 5-^May 2. 



Saciuiii lugubir Lee, thorax as long as wide, elytral punctures 

 and pubescence sparse, color pieeous, length 1.7 mm., and N. obscu- 

 rnm Lee, thorax wider than long, elytral punctures and pubescence 

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

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

 180, No. 8. 



IV ]\lor;.\MBA f'asey. 1900. 



Small oval species ha\'ing the antennae rather short with a stout, 

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

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

 Three have been taken in Indiana. 



KEY TO INDIAN.4. SPECIES OP MOLAMBA. 



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

 dle. 

 /;. Yellow markings of elytra an entire crossbar located behind the 

 middle; puliesccii<-e co.-irsi', distinct. UtiT. fasciata. 



66. Yellow markings ot elytra a subipiadrate siiol located very little lic- 

 hind the middle. 968. ounata. 



