1022.] 81 



pennis Mg.*, and were most numerous on certain parts o£ the bocT^', 

 such as the Lacks of the hands and the forearms, where the skin had 

 been destroyed (probably by the Phorid larvae), and also in the hair. 

 In this case the corpse had been buried for only ten months and was in 

 a remarkably good state of preservation; the coffin of sound oak was 

 quite good, with the joints perfect except that when the lid was removed 

 a little fluid exuded from the joints at the bottom. The grave was in a 

 dry loam, and was unusually shallow, the floor, which was Hned with the 

 turf cut from the surface, being only 4 ft. 9 in. below surface level. 



The larvae are elongate, subparallel, slightly depressed, of a whitish 

 colour, with the ninth abdominal segment flattened above and blfm-cate 

 behind, somewhat resembling that segment in the larvae of the Elaterid 

 genus AtJions. The form of this segment in those species of Bhizo- 

 pliagusoi which the larvae have been described gives excellent diagnostic 

 characters. 



In R. imrallelocoUis (as received from Dr. Spilsbury) there are two 

 conical brown tubercles on the disc, each having a single hair ; each 

 lateral margin bears two similar setigerous tubercles ; and each of the 

 terminal lobes, wliich are separated by a deep round emargination» 

 is itself subdivided into three branches, one dorsal, strong, upcurved and 

 sharply pointed, and two A'entral, an inner and an outer, smaller and less 

 strongly chitinised, each bifid or double-pointed at the apex, with a long 

 hair arising from between the points. 



-pig. A. — R. x>arallelocollis. 9th abdominal segment of larva, viewed from above. 

 B. — Lateral view of terminal process of same, more highly magnified. 



A comparison of this segment as described in the larvae of other 

 species of the genus may be of use. 



R. hipustulatus (Ferris, Ann. Soc. Linn. Lyon, 1877, p. 286, fig. 16, as 

 R. nitidulus). Very similar to above; also with two dorsal and two pairs 

 of lateral setigerous tubercles, but each of the terminal lobes is divided into two 



* For this determination I am indebted to Jlr. P. W. Edwards, who informs me that in the 

 only two previous records of this species being reared the laryae were found in the nests of Wasps 

 and Humble-Bees. 



