342 THE CANADIAN ENTOMOLOGIST. 



Tritoma, Fabr. 

 Some of the species of this genus are very common in fungi during 

 the summer and autumn ; they resort to such places for the purpose of 

 laying eggs which produce the somewhat maggot-Hke larvae previously 

 described. The beetles may be separated by the appended table : — 



A. Entirely black above. (.16-. 20 in.) u/iico/or, ^diy. 



AA. Above bicolored. 



b. Elytra with humeral reddish spot. (.10-. 16 'm.)../n{meralis,¥a.hx. 

 bb. Elytra with broad, central, reddish-yellow band. (.18-.20 in.) 



./estiva, Lac. 



bbb. Elytra unicolorous, black or bluish, thorax reddish, 

 c. Body beneath reddish. 



Antennte entirely black, elytral interstices obsoletely 



punctulate. (.22 in.) macra, Lee. 



Antennae black, red at base, elytral interstices very evi- 

 dently though sparsely punctate. (.18-20 



in.) thoracica, Say. 



cc. Body beneath black. (.i2-.i6in.) 



flavicollis, Lac. 



We give figures of T. humeralis (Fig. .62, the 

 larva, and Fig. 63, the beetle). The last four 

 Fig. 62. species are of more elongate form. ^'^" ^-^^ 



The chief papers bearing on the North American species are as 

 follows : — 



1853. Leconte, J. L. Synopsis of the Endomychid^e of the United 

 States. Proc. Acad. Nat. Sci. Phil., VL, pp. 357-360. 



1854. Leconte, J- L. Synopsis of the Erotylidae of the United States. 



Proc. Acad. Nat. Sci. Phil., VIL, pp. 158-163. 



1858. Gersttecker, A. Monographie der Endornychiden, Leipzig, pp. 

 xiv. + 433, 3 plates. 



1873. Crotch, G. R. Synopsis of the Erotylida; of Boreal America. 

 Trans. Am. Ento. Soc„ IV., pp. 349-358. 



1873. Crotch, G. R. Synopsis of the Endomychidse of the United 

 States. Trans. Am. Ento. Soc, IV., pp. 359-363. 



