THE PLEASING FUNGUS BEETLES. 543 



1034 (3204a). LANGURIA TRIFASCIATA Say, Journ. Phil. Acad. Nat. Sci., 



Ill, 1823, 4G2; ibid. I, 86. 



Elongate; the elytra tapering to an obtuse point. Head, basal and 

 apical thirds of elytra bluish-black ; thorax, a broad median band of elytra 

 and joints two to six inclusive of antenme, reddish-yellow ; beneath as in 

 angiistata. Length 6-7.5 mm. 



Throughout the State; frequent. March 16-May 29. Usually 

 regarded as a variety of cm gust at a. but in my opinion specifically 

 distinct. Occurs especially on the foliage of the wild lettuce, Lac- 

 luca, canadensis L., but often found on flowers of buttercup (Ra- 

 nunculus}. 



1035 (.3207). LANC.TTRIA LECONTEI Crotch, Trans. Amer. Ent. Soc., IV, 187::. 



351. 



Elongate, parallel. Nearly uniform greenish-black; ih TUX reddish-yel- 

 low with a large greenish-black spot on center of disk. Head and thorax 

 sparsely but distinctly punctate. Elytra 1 punctures in rows, with a few 

 finer ones on intervals. Length 10.5 mm. 



Vigo County; rare. March 12. Described from Illinois. 



1036 (.",209). LANGI-RIA r;nAcn.is \ewni., Ent. Mag., V. 1X38, 



390. 



Resembles Icconlci, but more narrow. Head, a I least 

 in part, red; greenish-black mark on thorax extended into a 

 stripe reaching from base to apex. Varies with the thorax 

 entirely greenish-black. Length 8.7-10 mm. (Fig. 203.) 



Southern half of State ; frequent. May 21-October 

 28. Occurs on ragweed (Ambrosia), fleabane (Eri- 

 <H't-on') and other low herbs from which it is taken by L> ,, 03 



(After Wickham.) 



Tribe II. EROTYLINI. 



To this tribe, as defined in the key. belong the following genera 

 from Indiana : 



KEY TO INDIANA GENERA OF EROTYLINI. 



. Tarsi distinctly 5-,iointed. (Group Dacnes.) 



6. Tarsi narrow, not dilated; size small, not over 3.5 mm. 



c. Form oval, the sides curved ; elytra unicolored ; antennae with 10th 



and llth joints united. II. PLCEOSOMA. 



cc. Form oblong, the sides nearly parallel ; elytra bicolored ; antemue 



distinctly 11-jointed. III. DACNE. 



7)6. Tarsi dilated, spongy beneath; size larger, 5-20 mm. 



IV. MKOAI.ODACNI';. 



mi. Tarsi apparently 4-jointed, the fourth joint very small, united with the 

 fifth. 



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