NO. II LARVAE OF THE ELATERID BEETLES GLEN 73 



from the identical spot at Saskatoon from which a reared specimen 

 had previously been taken. Notes follow on reared adults and their 

 associated exuviae. 



I ; Katepwa, Saskatchewan ; Aug. i, 1934 ; pupa and larval exuvium found 



together in pupal chamber; adult emerged by August 20; R. Glen. 



(C.N.C.) 

 i; Saskatoon, Saskatchewan; May 21, 1938; adult emerged July 24; R. Glen. 



(C.N.C.) 

 2; Arlington Heights, Mass.; (date collected not known); both specimens 



reared. No. 16393 emerging September 6, 1919, date of emergence of 



No. 16392 not known. (U.S.N.M.) 



LUDIUS HIEROGLYPHICUS (Say) 

 Figure 17, f, g 



Elater hieroglyphtcus Say, Trans. Amer. Philos. Soc, vol. 6, p. 172, 1839. — 

 LeConte, Complete writings of Thomas Say, vol. 2, p. 607, 1859. 



Ludtus bicinctus Candeze, Mem. Soc. Roy. Sci. Liege, vol. 17, p. I73, 1863. 



Corymbites ctenicerus Gemminger and Harold, Catalogus Coleoptorum, 

 vol. 5, p. 1577. 1869. 



Ludius hieroglyphicus (Say), Brown, Canadian Ent., vol. 68, p. 181, 1936. 



This eastern species is recorded by Brown (i936d, p. 182) from the 

 northeastern United States and from Quebec to Manitoba in Canada. 



Blatchley (1910, p. y6y) reports taking the adults from trees and 

 shrubs about the margins of lakes and marshes. Larvae believed to 

 be of this species were collected from the decomposing litter under 

 spruce in New Brunswick and Nova Scotia. These were observed 

 by R. F. Morris, Dominion Entomological Laboratory, Fredericton, 

 New Brunswick, to attack the cocoons of the European spruce sawfly, 

 Gilpinia hercyniae (Hartig), during rearing studies. 



In hieroglyphicus, the prongs of the urogomphi (fig. 17, f, g) are 

 relatively slender, the inner prongs being at least twice as long as 

 their greatest width; the outer prongs are nearly twice as long as 

 the inner prongs and much thicker. The size of mature larvae is not 

 known, but it is certain that they would exceed 16 mm. (the maxi- 

 mum length of propola larvae) and probably would exceed 20 mm. 

 Each gena usually bears only 3 lateroepicranial setae with an addi- 

 tional hair farther dorsad and another farther anterad; i exuvium 

 had 2 pairs of lateroepicranial setae. Antenna with first segment 

 two-thirds as wide as long and about twice as long as second segment. 

 Coxae of prothoracic legs bearing up to 19 spinelike setae on each an- 

 terior surface ; each coxa of mesothoracic and metathoracic legs with 

 up to 24 spinelike setae. On mediotergites of second to eighth abdomi- 



