992 



FAMILY L. — SCARAB/D:iD.gi. 



1852 (5871). LiGYKUs relictus Say, Journ. Phil. Acad. Nat. Soi., V, 1825, 

 194; ibid. II, 296. 



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

 verse carina of head interrupted at middle; clyijeus 

 with tvpo teeth. Thorax strongly convex, hind angles 

 broadly rounded, surface tinely and sparsely punc- 

 tured. Elytra with rather tine punctures, those of 

 center of disk arranged in three double rows ; those 

 on sides and near suture uiuch 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 hike shores of the northern coun- 

 ties. IMay 26-August 26. Occurs at electric 

 li^ht and l)eneath ru])l)ish, Tlie hu'va^ live in old, 

 well-rotted manure piles. 



Fig. 410. X li. 

 (.\fti'i- Knobel.) 



XXXII. Apiionus Ijcc. InHS. ((ri-., "without + voice.") 



The untoothed mandibles and tbe lack of stridulating organs on 

 the under siu'face of the elytra are the principal characters separat- 

 ing this genus from Lifn/nis. In our s{)ecies the tip of the clypeus 

 is elevated, and inunediately ])ehind it is a sharp, transverse ele- 

 vated line wliich l)cars three 1)l\int teeth. One of the four recog- 

 nized species has been taken in the State. 



lS5o (5S74). Aphonus tridentatus Say. Journ. Phil. Acad. Nat. Sci.. Ill, 

 182.3, 209 ; ibid. II. 134. 

 OI)Iong-ovate, robust. P>lack or piceous-black, shining ; l)enoath dark 

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

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

 and sparsely punctate. Elytra striate, the stri;e with rows of rather fine 

 punctures; intervals subconvex, irregular in width and with scattered 

 coarse punctures. Length 13-16 mm. 



Putnam, Vigo, Floyd and Posey counties ; scarce. ]\Iay 10- 

 July 29. Occurs about old decaying stumps in which the larva^ 

 live; also at light. 



XXXIII. Xyloryctes Hope. 1837. (Gr. 

 ' ' wood + a digger. ' ' ) 

 This genus contains a single large l)ulky 

 form, having the mandil)les prominent, not 

 toothed on the outer side; the male with a 

 long curved horn arising from the middle of 

 the head, whence the common name of "rhi- 

 noceros beetle." 



1854 (5880). Xyloryctes satyrus Fab., Syst. 

 Eleut., I, ISOl, 15. 

 ( )i)l(iiig. robust. Dark chestnut to piceous brown. 



Kg. 4U 



(After (J lover.) 



Natural fhv. 



