992 



FAMILY L. HCAHAB/EIDiE. 



1852 (5871). LiOYKUs relictus Say, Journ. Phil. Acad. Nat. S<-i., X, 182."> 

 ,194; ibid. II, 296. 



Oblong, very robust. Piceous black, shining. Trans- 

 verse carina of head interrupted at middle ; elypeus 

 with two teeth. Thorax strongly convex, hind angles 

 broadly rounded, surface finely and sparsely punc- 

 tured. Elytra with rather fine punctures, those of 

 center of disk arranged in three double rows ; those 

 on sides and near suture much confused. Male with 

 inner claw of front tarsi thickened, dilated and ab- 

 ruptly curved. Length 18-23 mm. (Fig. 410.) 



Throughout the State, frequent; more so 

 about the sandy lake shores of the northern coun- 

 ties. May 26-Aug'ust 26. Occurs at electric 

 light and beneath rubbish . The larvaj live in old, 

 well-rotted manure piles. 



Fig. 410. X 1}. 

 (After Knobel.) 



XXXII. Aphonus Lec. IS^jS. (Or., "without -(- voice. ") 



The untoothed mandibles and the lack of stridulating organs on 

 the under surface of the elytra are the principal characters separat- 

 ing this genus from Ligiji-us. In our spei-ies the tip of the elypeus 

 is elevated, and immediately behind it is a sharp, transverse ele- 

 vated line which bears three blunt teeth. One of the four recog- 

 nized species has been taken in the State. 



1S5;; (."],S74). Apjionis tbidentatlts Suy. Journ. Phil. Acad. Nat. Sci., Ill, 

 ]82;i, L'Oil; ibid. II. i:;4. 

 0))l(>ng-()\'ate, robust. F.lack or piceous-black, shiniu.i,' ; liciieath dark 

 reddish-brown. Thorax about one-third wider than long, strongly eonyex. 

 sides feebly eiirved, hind angles obtuse, basal margin sinuate; surface finely 

 and sparsely punctate. Elytra striate, the strisie with rows of rather fine 

 punctures; intervals suhconvex, irregular in width and with scattered 

 coarse punctures. Length l.'J-ie mm. 



Putnam, Vigo, Floyd and Posey counties; scarce. I\[ay 10- 

 July 29. Occurs about old decaying stuiii])s in vvhich the larva' 

 live; also at light. 



XXXIIT. Xyloryctek Hope. 1S:!7. (Gr. 

 "wood + a digger.'") 

 This genus contains a single lai-ge bulky 

 form, having the mandibles prominent, not 

 tootlied on the outer side; the male with a 

 long curved horn arising from the middle of 

 the head, whence the common naim^ of "rhi- 

 noe(>i'os beetle." 



1854 (.5880). -Xylohvctes satyrls Fab., Syst. 

 lOleut, I. isoi, 1.-,. 

 Oblong, robust. Dark chestnut to piceous brown. 



Rg. 4U. Male. Natural size. 

 (Alter Ulover.) 



