THE DEATH-WATCH AND DRUG STORE BEETLES. 



si 17 



cc. Head very strongly deflexed and retracted, the mandibles nearly 



or quite reaching the metasternum. 



G. Metasteruum and first ventral segment not grooved for the re- 

 ception of middle and hind legs; form oblong or elongate-oval; 

 head impressed or excavated beneath for the reception of the 

 antemue. Tribe IV. XYLETININI, p. S7:5. 



ee. Middle and hind legs received in excavations on metasternum 

 and first ventral segment; form varying from elongate-oval to 

 globose; antennae usually received between the front coxa?. 



Tribe V. DORCATOMINI, p. 87<>. 



l)l>. Antennae of male strongly fan-shaped; outer margin of front tibia? 

 prolonged at tip in a horizontal tooth, the margin above the tooth 

 finely denticulate; form and sculpture varying in the sexes, the 

 former usually cylindrical ; thorax not distinctly excavated be- 

 neath. Tribe VI. PTII.INIM. p. ss.'t. 



Tribe I. HEDOBIINI. 



The two genera comprising this tribe were placed by LeCo7ite 

 and Horn in the subfamily Ptininas, but were transferred by Fall 

 to the Attobiina'. One of the two is represented in the eastern 

 United States, including Indiana, by a single species. 



III. EUCRADA Lee. 1861. (Gr., " good + rust.") 



Antennae widely separated at base, being inserted near the inner 

 margin of the eye, pectinate in male, quite strongly serrate in fe- 

 male ; elytra with somewhat irregular rows of punctures. 



1652 (5245). EUCKADA HUMEEALIS Melsh., Proc. Phil. Acad. Nat. Sci., II, 



1845, 310. 



Oblong, moderately elongate. Dull 

 black ; thorax, except basal and apical 

 margins, and humeri of elytra, reddish- 

 yellow. Head granulate, densely clothed 

 with grayish-yellow hairs. Thorax about 

 as long as wide, sides rounded, surface 

 granulate, disk obtusely elevated. Elytra 

 with close rows of rather coarse punc- 

 tures ; intervals narrow, feebly convex, pu- 

 bescent, the humeral one more conspicu- 

 ously pubescent, giving the appearance of 

 a eusta or raised line alung the sides. Length 4-5.5 rnm. (Fig. 345.) 



Marion, Dubois and Posey counties; scarce. March 23-May 11. 

 Occurs on trunks of dead beech or beneath rubbish in open wood- 

 land. 



Tribe II. DRYOPHILINI. 



The members of this tribe agree in having the head only moder- 

 ately deflexed, the thorax not excavated beneath for its reception; 



Fig. 345. X 5. Male. (Original.) 



