52 Annals Entomological Society of America [Vol. XII, 



smaller. The ninth abdominal segment is apparently the last 

 one, although the portion surrounding the anal opening probably 

 represents the tenth segment. It is outlined and almost covered 

 with coarse, triangular spines. The remainder of the ninth 

 segment is sparsely covered with very minute setse. On both 

 surfaces the heavily chitinized caudal portion is punctate. At 

 the caudal end of this segment are two minute spines. The 

 spiracles are easily visible on the lateral part of the mesothorax 

 and first eight abdominal segments (Fig. 9). In the spiracular 

 region are a number of structures which seem to be olfactory 

 pores. The arrangement is shown on one segment in Fig. 9 and 

 several very much enlarged in Fig. 10. These seem to be all of 

 the simple type as shown in Mclndoo's Fig. 19. A few sensory, 

 pores were also located on the head, and what appeared 

 to be a compound one with several openings was found on 

 each side of the ventral surface of the prothorax. These show as 

 a round white spot on the large, brown area on each side of the 

 meson. Nearly all of the body segments have a small, lateral 

 projection which seems to aid in locomotion, as the larva moves 

 on either side as well as on either dorsal or ventral surface. 



Pupa: The pupa (Figs. 12 and 13) is very much like that of 

 an elaterid and does not differ in essential details from any 

 other coleopterous pupa. The entire body, including appen- 

 dages, is densely covered with very fine pubescence. In dorsal 

 view (Fig. 12) a small portion of the head is visible and the 

 thoracic and nine abdominal segments clearly defined. A deep 

 furrow between the thorax and abdomen allows for considerable 

 movement. The caudo-lateral angles of the prothorax are 

 produced for at least one-fourth the total length of the segment. 

 The first eight abdominal segments bear spiracles but those of 

 the first, and sometimes those of the eighth, are concealed. The 

 lateral margin of each abdominal segment is more flattened than 

 the remainder and separated from it by a slight furrow as indi- 

 cated by dotted lines. There are many long, soft setse on the 

 various body segments as indicated in the figure, the row on 

 the base of the mesothoracic wings being quite prominent. In 

 ventral view (Fig. 13) it will be seen that none of the head 

 sutures are visible, the antennae are closely approximated and 

 mandibles, maxillae and labial palpi are easily distinguished. 

 The prosternal spine and its groove on the mesothorax are 

 easily seen and all of the appendages are quite normal in 



