EEVTSION OF ELEODTTNT BLAISDELL. 499 



Mr. Gissler notes that in one specimen studied by him there were 

 two spines articukited in one cavity, while in another specimen they 

 Avere asymmetrically placed, nine on one side and eight on the other. 

 In tlie sculpturing of the pygidia a few smooth spots were observed 

 in Eleodes. 



Legs similar in form, the anterior larger and stouter, claws of the 

 middle and posterior are distinctly more slender; the anterior are 

 more strongly chitinized. The coxie are quite conical and transverse, 

 also prominent. 



The anterior has spines arranged as follows : At inner side of base 

 of claw a spine points inward, tibia3 with three spines on inner sur- 

 face, femur Avith three, trochanter Avith two, each podomere Avith 

 scattered flying hairs of varying lengths. 



The middle and posterior legs also have spines somewhat ditfer- 

 ently arranged and more difficult of description. 



Mr. Gissler Avrites that in Tenehrio and Eleodes (Plate 13, fig. 15) 

 the first jDost-embryonic stages are alike in the form of the pygidium. 

 The integumentary appendages of larval pygidia may be regarded as 

 the homologues of the dorsal parapodia of their ancestors — the 

 Annelides. 



Tavo A'ery minute tubercles can be seen under strong microscopic 

 poAver at the middle of the base of the pygidial tips in EleodeH. 

 Whether they are orifices or not I can not decide. The larva? of Ele- 

 odes when disturbed and handled violently jerk their abdomen and 

 spurt a turbid, odorless, Avater}" fluid out of Iavo lateral orifices situ- 

 ated under the tergal fold near the j^osterior margin of the seA^enth 

 abdominal segment. These structures are a peculiar ada})tion to the 

 larval body, since the excretion of the repugnatorial glands of the 

 imago is spurted out through the anal opening. The higher develop- 

 ment of this gland is certainly attained during the pupal period (Giss- 

 ler). 



Mr, Gissler found that in Blaps luortisaga the pygidium had usually 

 twelve lateral and tAvo latero-terminal spines (Plate 13, fig. 18). Out 

 of ten specimens two had sixteen in all, the rest only fourteen. In 

 Eleodes gigantea and E. dentijjes he gives as the usual number of 

 spines sixteen lateral and two latero-terminal. A number of either 

 species had only sixteen in all. (See Plate 13, fig. 17.) 



The larvae of Eleodes are abundant, but I have never had time to 

 successfully rear them, to determine the species to Avhich they be- 

 longed. From the sand dunes along the coast the larvse of E. clari- 

 cornis and scahrosa have been taken. Two pupae were obtained ; one 

 developed a clavicornis, the other being identical was studied, figured, 

 and preserved in spirits. 



