souoDER.] CANADIAN FOSSIL INSECTS. 31 



Millwood on the Assiniboine River, north-western Manitoba, from 

 nodules in the Pierre shales. — J. B. Tyrrell, 1888. 



This is the second cretaceous insect that has been discovered in North 

 America, the first being Corydalites from the Laramie beds of Colorado. 



Family TENEBRIONID^. 



Tbnebrio Linne. 



Tenebrio primigenius. 



Tenebrio primigenius ScTJBD. , Rep. Prog. Geol. Surv. Can., 1877-78, 183 b (1879) ; 

 Id., Tert. Ins. N. A., 483-484, PI. n., fig. 32 (1890). 



A single, complete, and well-preserved elytron represents a species of 

 Tenebrionidse, a little larger than, and somewhat resembling, Tenebrio 

 molitor (Linn.), the beetle of the common meal-worm. It has been flattened 

 by pressure, so as to show but little sign of having been arched ; while at 

 the sanje time the shape is fairly preserved. Wherever it differs in colour 

 from the stone it is piceous. The margins are very nearly parallel, approach- 

 ing each other rather gradually and very regularly toward the tip ; there 

 are eight equidistant, pretty strongly impressed, rather coarse, longitu- 

 dinal striae, besides others next the outer margin, whose number cannot 

 be determined, and a short scutellar stria, about as long as in T. molitor, 

 but quite as distinct as the others ; the surface between the strise appears 

 to be very minutely subrugulose, and shows in favourable light a faint 

 transverse corrugation. 



Length of elytron, 11"""; breadth, i^™". 



Nine-Mile Creek, British Columbia. One specimen. No. 63 — Dr. G. M. 

 Dawson. 



Tenebrio calculensis. 



PL III, figs. 1, 6. 



In a clay nodule are exposed, besides other objects, the partly twisted 

 more or less separated and broken members of a beetle, the anterior half 

 of the under surface of which is also seen. It appears to belong to the 

 Tenebrionidse in the near vicinity of Tenebrio, but to combine with a 

 delicate punctuation and independent feeble striation of the elytra, a 

 coarsely punctate, almost rugose metasternum very foreign to Tenebrio 

 and more such as is found in Cibdelis where, however, the elytra have by 

 no means the delicacy found in the fossil. Other and more important 

 reasons for placing it in or near Tenebrio are the close approximation of 

 the fore and middle legs when the pronotum is bent down, the slight 



