THE ANT-LOTING BEETLES. 



319 



606 (1922). Bryaxis illinoiensis Brend., Proc. Ent Soc. Pbll.. VI, 1866, 

 195. 

 Rather broadly ovate. Piceous-black, shining; elytra dark red; an- 

 tennae reddish-brown, legs and palpi paler. Antennae less than one-half the 

 length of body; joints 2-8 small, rounded; ninth obconical, longer; tenth 

 twice as wide as eighth; -eleyenth oblong-oval, twice as thick as ninth. 

 Thorax wider than long, the fovete very large. Elytra one-third longer 

 than thorax, sutural and dlscal lines distinct, parallel, the latter deep at 

 base and reaching apical fifth. First dorsal of male deeply concave, pro- 

 longed behind in two acute triangular lobes; second dorsal with a large 

 median fovea. Length 1.8 mm. (Pig. 150, a.) 



Throughout the State ; common. JTarch 20-June 24. On May 

 6 I took scores of this species beneath driftwood on the mud banks 

 of the Ohio River near Charleston, Clark County. 



B. perforata Brend., is said in Brendel & Wickham's key to oc- 

 cur in "Michigan, Illinois and Iowa," and in the description which 

 follows "in New York, Jersey and Long Island." 



Fig. 150. u, Bryaxis iUinoiciisis; b, Rcichenbachia graci'is; c, Reichenbacbia congener; d, Reiihen^nrhia 

 prQjnnqun {male). All highly magnified. (After Brendel and Wickham.) 



XIII. Reichenbachia Leach. 1826. (Name of a naturalist.) 



A large genus of small, broad-bodied species having the base of 

 thora.x marked with a large fovea each side and a very small round 

 one on the median line; elytra each with three small basal fovea, 

 The following species are known from or perhaps occur in the State : 



KEY TO INDIANA SPECIES OF REICHENBACHIA. 



11. Carinse of first dorsal segment of abdomen separated by less than one- 

 third the width of the segment ; antennse not modified in the sexes. 

 &. CarinsB separated by a space not wider than that between the su- 

 tural lines of elytra. 

 c. Thorax punctured. 

 d. Punctures of thorax fine and sparse ; carinse of first dorsal quite 

 short and divergent 607. qemmifeb. 



dd. Puncture.^ of thorax distinctly coarser and very dense; dorsal 

 cariuie one-lialf the length of segment and less divergent. 



60S. CANADENSIS. 



[21—23402] 



