1824 



FAMILY LXI. — MOKDELLID.E. 



thorax bright yellow; elytra densely clotlu'd with yellow imbeseenee. Length 



2.5-3 mm. 



Lake County ; rare. 

 S(-|)toinl)er 22. Althou|»;li 

 Smith places dirisa as a 

 synonym of iii(ir(/i)ialis, yet 

 the speeimen at hand is 

 very tlistinet ])y the much 

 brighter veHow of head 

 I ^ and legs and the character 

 of the pubescence. 



M. (tqualis Smith, 

 length 5 mm., was de- 

 scribed from northern 

 Illinois. 



Fi;; .580. a, Hind tibia and tarsus of ,1/. sailaria; 

 (), elytron of same: f, elytron of M. piihcscciif:; (/.ely- 

 tron of .1/, liihiimata- (After Sniitli.) 



trROUP F. 



In this group the hiiul til)ia' are marivctl with four to six short, 

 oblitpie ridges. (Fig. 580, a.) The following species have been 

 taken or perhaps occur in the State: 



KEY TO INDIANA SPECIES OF GROUP F. 



a. Hind tibi.ie with only four ridges besides the siibapical one. 



h. Fourth ridge very small or rudimentary; first joint of hiud tarsi with 

 three, second with two obli(]ue ridges. 

 c. Body black. 

 d. Elytra with an undulated band before the middle and a large 

 oblong spot near tip. fuscous. (Fig. 580, b.) scalaris. 



(Id. Elytral markings of silken yellow, not fuscous, pubescence. 



c. Elytra with a curvetl band from humerus to suture, a cross- 

 band behind middle and another at tip of silken yellow pu- 

 bescence. (Fig. 580, c. ) 2457. pubescens. 

 cc. Elytra with two oblique bands connected by a line near mar- 

 gin, and also tlie apex yellowish pubescent. 



24.~)8. lU ham ATA. 



cc. l\(H\y tuiiftiriii hr(Jwnish-yellow : elytra with two very oldicpie bands 

 of silken yellow pubescence. 24.j!). i.iturata. 



bb. Fourth ridge of hind tibia- distinct. 



/. First joint of hind tarsi with three, second with two obliiiue ridges; 

 elytra fuscous, clothed with short, yellow pubescence. 



24(50. FrscATA. 

 ff. First joint of hiud tarsi with five ridges; second joint with three 

 ridges, third with none. 

 /(. Color reddish-brown. 2461. hoosieri. 



