NO. II LARVAE OF THE ELATERID BEETLES GLEN 129 



paired. Episternum with 3 large setae. Epimeron bearing i small 

 seta. Presternal area consisting of 4 sclerites as follows : A small 

 posterior medial sclerite, anteriorly attenuate ; 2 large, subtriangular 

 lateral sclerites, striate on anterolateral aspect, with i stout seta 

 laterad to center and a short diagonal row of 5 minute setae on antero- 

 medial aspect ; and a very narrow medial anterior piece. Eusternum 

 small, membranous or weakly sclerotized. Sternellum and poststernel- 

 lum indefinite, small, membranous. 



Mesothorax and metathorax each about twice as wide as long. 

 Mediotergites sparsely punctulate; transverse branch of impressions 

 reaching about one-fourth distance from longitudinal branch to mid- 

 dorsal suture ; longitudinal branch of impression short. Anterior part 

 of each mediotergite with transverse row of 3 or 4 unpaired setae. 

 Posterior part of each mediotergite with transverse row of 4 con- 

 spicuous setae, 2 most medial paired. Lateral part of each medio- 

 tergite with I large seta between anterior and posterior rows. Addi- 

 tional minute setae sometimes observable in punctures. Anterior 

 laterotergite subtriangular, one-half as large as subovate posterior 

 laterotergite. Episternum bearing up to 4 spinelike setae (usually 

 2 or 3). Mesothoracic spiracles slightly larger than spiracles in 

 abdomen. 



Legs subequal in length. Coxa with up to 25 spinelike setae on an- 

 trior aspect ; 3 to 6 stout setae and a few fine hairs scattered on pos- 

 terior surface. Trochanter with 6 to 9 spinelike setae on medio- 

 anterior surface ; 6 to 8 such setae and i fine seta on posterior aspect ; 

 2 well-developed setae on medial surface. Femur usually with 7 to 10 

 spinelike setae on medioanterior surface; 3 or 4 spinelike setae and 

 I slender seta on posterior surface; i long seta on medial aspect; 

 I or 2 fine hairs on lateral surface. Tibiotarsus with 6 setae around 

 distal margin; 3 or 4 spinelike setae and i slender seta on medio- 

 anterior surface; 2 or 3 spinelike setae on posterior aspect. Ungula 

 well developed ; when uneroded about as long as tibiotarsus. 



First to eighth abdominal segments subequal ; first segment short- 

 est ; fourth to sixth segments widest. Mediotergites (fig. 25, d) with 

 small shallow punctures, especially in anterior half, usually more pro- 

 nounced between end of transverse branch of impression and mid- 

 dorsal suture, punctation varying from few small punctures to many 

 moderate-sized pits, usually moderately pitted and becoming stronger 

 from first to eighth segments ; transverse branch of impression (trim) 

 slightly sinuate, reaching from one-half to two-thirds distance from 

 longitudinal branch to middorsal suture on second to eighth segments, 

 from one-third to one-half distance on first segment ; longitudinal 



