. An illustrated descriptive catalogue of the coleoptera or beetles (exclusive of the Rhynchophora) known to occur in Indiana : with bibliography and descriptions of new species . Beetles. THE DARKLING BEETLES. 1255 is ruined, for when the insects liave time to propagate the}' soon convert the flour into a gray, useless mass. A part of the annoy- ance to purchaser, dealer and manufacturer is due to the fact that. Fig. 561. Tribolium confusum; a, beetle; h, larva; c, pupa, d, side lobe of abdomen of pupa; e, liead of beetle, howing eye and antenna; /, same of T. ferrujiiifum. (After Chittenden
. An illustrated descriptive catalogue of the coleoptera or beetles (exclusive of the Rhynchophora) known to occur in Indiana : with bibliography and descriptions of new species . Beetles. THE DARKLING BEETLES. 1255 is ruined, for when the insects liave time to propagate the}' soon convert the flour into a gray, useless mass. A part of the annoy- ance to purchaser, dealer and manufacturer is due to the fact that. Fig. 561. Tribolium confusum; a, beetle; h, larva; c, pupa, d, side lobe of abdomen of pupa; e, liead of beetle, howing eye and antenna; /, same of T. ferrujiiifum. (After Chittenden in Bull. IV, .\ Ser , U H. Div, Ent.) the insects are highly offensive, a few specimens heing sufficient tn impart a disagreeable and ]H'rsistent odor to the infested sub- stance. '' 2319 (]0,017). Tribolium coxfusvji Uuval, Geii. Col. Eur. Cat., , isl. Slightly larger, darker and more depressed than fvrnif/iiieuin. from which it cau be easily separated only by the characters given in key. Tho- rax more coarsely and shallowly pnnctate, with the hind angles more i>romi- nent and the basal impressions wholly absent; punctures of elytra less dis- tinct. Length (Fig. 561.) Marion, Orange and Vigo counties; frequent. January 17-No- vemher 25. On January 17, 1806, I received from Dr. Robert Hess- ler, of Logansport, Ind., a pillbox of Cayenne pepper in which were a dozen or more adult specimens of this beetle. The box was placed in a drawer of my desk' and not opened again until ]\rarch 2(1, when the beetles were as lively as ever. On September 1-4 it was opc^ned for the third time. Two living adults and numerous half- grown larviP were found therein, together with the uneaten bodii--) of the dead adults. The pep])er being perfectly dry, the question arises: How did the insects sec are sufficient moisture to live and flourish when enclosed in so smiill a box? Both this and the pre- ceding are imported species, and both are lu-casionally museum pests, preying upon dried
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeetles, bookyear1910
