NO. II LARVAE OF THE ELATERID BEETLES GLEN II5 



setae. Anterior part of each mediotergite with 4 to 6 unpaired setae 

 (in addition to the minute setae issuing from some of punctures), i 

 seta being near middorsal line, i at end of transverse branch of im- 

 pression, I within angle formed by branches of impression, i laterad 

 to impression, and sometimes i or 2 additional small setae between 

 end of transverse impression and seta near middorsal suture. Pos- 

 terior part of each mediotergite with transverse row of 4 to 7 setae, 

 at least the 2 most medial hairs are paired. Lateral part of medio- 

 tergite bears i or 2 setae in region between anterior and posterior 

 rows. Anterior laterotergite subtriangular, one-half as large as pos- 

 terior laterotergite. Episternum bearing 2 fine setae; without spine- 

 like setae. Eusternum with up to 6 fine setae in transverse row an- 

 terior to bases of coxae, only 2 to 4 conspicuous. Mesothoracic spiracle 

 slightly larger than spiracles in abdomen; spiracle in first abdominal 

 segment sometimes about same length. 



Legs subequal in length. Coxa with up to 28 spinelike setae and i 

 or 2 fine setae on anterior aspect, some of spinelike setae noticeably 

 long; a few scattered hairs (some stout) on posterior surface. Tro- 

 chanter with 6 to 8 spinelike setae on medioanterior surface ; 5 to 8 

 such setae and i fine seta on posterior surface; 2 well-developed 

 hairs on medial aspect. Femur about as long and as thick as tro- 

 chanter ; usually with 8 to 10 spinelike setae on medioanterior surface ; 

 3 to 5 spinelike setae and i slender seta on posterior surface ; i or 2 

 long setae on medial aspect ; a few fine setae on lateral surface. 

 Tibiotarsus with 6 setae around distal margin ; 5 or 6 spinelike setae 

 and I slender seta on medioanterior surface; 3 to 5 spinelike setae 

 and I fine seta on posterior aspect. Ungula more than one-half length 

 of tibiotarsus. 



First to eighth abdominal segments subequal ; first segment short- 

 est; fourth and fifth segments usually widest. Mediotergites (fig. 

 23, b) with small shallow pits; usually with small transverse rugae 

 (or pits) anterior to transverse branches of impressions; transverse 

 branches of impressions (trim) reaching to or almost to middorsal 

 sutures on second to eighth segments, shorter on first segment ; longi- 

 tudinal branch of each impression (him) extending approximately 

 three-fourths distance from transverse branch to posterior transvci se 

 row of setae. Anterior part of each mediotergite with 5 conspicuous 

 setae, i (atm) near middorsal suture, usually just caudad to impres- 

 sion, 2 issuing from transverse branch of impression, i farther caudad 

 within angle formed by branches of impression, and i laterad to im- 

 pression; usually additional minute setae within impression and in 

 pits and rugae. Posterior part of each mediotergite with transverse 



