104 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. Ill 



Material used in study. — Six specimens were examined, including 

 one larval exuvium. Though reared adults were not available for con- 

 firmation of the identity of the material studied, it is believed to be 

 reliably named. The larval skin examined is from the Pennsylvania 

 Agricultural Experiment Station collection and is labeled "Ludius 

 sulcicollis Say, Cold Springs, Pa., VIII-16, J. N. Knull." In his 

 "Notes on Coleoptera — No. 3," Prof. Knull (1932, p. 43) states, 

 "LUDIUS SULCICOLLIS Say. An adult was found in its pupal 

 cell in a decayed pitch pine {Pinus rigida Miller) snag at Cold 

 Springs, Adams County, August 16." It is very likely that the larval 

 exuvium examined was taken with its adult from the pupal cell re- 

 ferred to in this statement. Three whole larvae in the U. S. National 

 Museum labeled "Ludius sulcicollis (?) Say, Hummelstown, Pa., 

 V-20-'29, J. N. Knull, Nyssa sylvatica" are thought to be associated 

 with the material of this species that was reared by Prof. Knull and 

 reported by him (1930, p. 83) as follows, "LUDIUS SULCI- 

 COLLIS Say. Adults were reared from dead sour gum {Nyssa 

 sylvatica) wood infested with Leptura eniarginata Fab. and Charisalia 

 americana Hald. collected at Hummelstown, Pennsylvania." The other 

 larvae examined were from Pennsylvania ( i ) and Illinois ( i ) . 



LUDIUS CINCTUS (PaykuU) 



Figures 14, h; 22, a-c, e 



Elater cinctus Paykull, Fauna Svecica, vol. 3, p. 10, 1800. 



Hypoganus cinctus (Paykull), Kiesen wetter, Naturgeschichte der Insecten 



Deutschlands Coleoptera, 1857-1863, vol. 4, p. 299, i8s8. 

 Corymbites cinctus (Paykull), Bose, Die Kafer Deutschlands von Valentin 



Gutfleisch, p. 363, 1859. 

 Hypoganus cinctus (Paykull), Schenkling, Coleopt. Cat. (ed. Junk), vol. 2, 



pt. 88, p. 402, 1927. 



The larva of this European species has been described by Schiodte 

 (1870, p. 519), Rupertsberger (1870, pp. 835-836), and Henriksen 

 (191 1, pp. 263-264) and is referred to by Beling (1884, p. 204). 



The larval habitat is in decaying stumps and logs, particularly of 

 oak and beech. Specimens are commonly found just under the bark 

 and have been taken from the galleries of Anobium. Henriksen 

 (191 1, p. 264) states that pupation occurs in August and the imago 

 develops in September, spending the winter in its pupal chamber. 



The larva of cinctus is readily identified by its prominent color 

 pattern (fig. 22, a), subequal prongs of urogomphi (fig. 22, c), and 

 large number of setae, especially on medial aspect of femur and tro- 

 chanter. The color pattern and lavish supply of setae give super- 



