182 



ill iiiyi-iads in corn (icids, s\vai'niin<;- over stalks, Icavcis, and i.assols, and 

 feeding- (til llic stalks. 'I'liis heel 1<MS soniciimcs very coinmon in houses, 

 and occasions nnicli annowiiicc by "■cMiiiir into milk and otiici' foods. 



Fki. 177. Mildiiopldhalma disHn- 

 (luenda. Length about one sixteonili 

 inch. 



JyArUIDIlD.lO. 



These minute, (>lon<>;ate, light brownish beetles are (]uite common 

 under boards and l(>aves in spring, on ])lants, and at times (ly in numbers 

 at dusk. Some species UH'i\ on stoi'ed cereals and on other vegetable 



oi" animal products. ( Mhers probably U'v^X 

 on pollen. 



A species calh^l by bintner* "the 



(Jorn Beetle," and doubtliilly identified by 



him with CarUxIcrc rujicollis Marsh (Latrid- 



ius pulicariuf>), was reportcul l)y him as 



feeding on corn just from tlu^ field. 'J'he 



s|)ecimens sent him indicated, however, 



that it merely followe(l a pi-evious injury. 



M (ianopldhalma (liMinyucndu (Fig. 177; 



IM. VllL, Fig. 4), the conunonest si)ecies 



of th(! family with us, has been taken by 



us several times on injured corn kernels 



in the ear, on the silk at the tip ol' the 



ear, and on corn lying on the gi-ouiid. 



It has been confused with a northern 



si)ecies (M. pumila), imd under tluUattername Webster has mentionedf 



what is probably this species as abundant in Indiana in August and 



September, feeding <jn the kernels at the tips of ears of young corn. 



TUOGOSITID/E. 



The species of Tcnehrioides (Fig. 178) are flattened, elongate, black 

 beetles, about a fourth of an inch long. One of them, the cadelle (7'. 

 mauritanica) , is a cosmopolitan insect in stored grain and meal. ( )ur native 

 species live under bark. One ^ ^, 



of them, T. corticalis didnu, / (\—\-1^^' 

 is said l)y GloverJ to destroy '^ *^ 



whc^at, corn, and othei- 

 grain, in Maryland. in a 

 later report he indicates 

 that, the injury is done in 

 the larval stage;, but. no 



details are given in eith(>r ],-i,,. i7,s. r,ncbrioidca corlicalia: a, huva; /-, 



c f, larval struclure.s, and g—j, structures of adult, more 

 case. eulnrKed; a and 6, enlarged as indicated. 



JRep. U. S. Dept. .Vnr., istis, j.. s:?. 

 Wldem, 1870, p. 06. 



♦Sixth Report, pp. 183, 184. 



tllep. U. S. Dept. Agr., 1887. p. 151. 



