REVISIOISr OF ELEODTINI BLAISDELL. 511 



Fig. 13. Ventral view of the senital segment of Elcodvs Dtair/inatd ; note the 

 contiguous internal margins of the valves and compare with fig. 16, 

 Plate 5. 



Plate 3. 



Fig. 1. Dorsal view of the edeagophore of Eleodcs obsoJctn ; see explanation 

 of fig. 1. Plate 2. 



2. Sternite (male) of Eleodcs obsolcta; compare with figs. 2 and 5 of 



Plate 2. 



3. Dorsal view of the genital segment of Eleodcs obsolcta; note the very 



explanate dorsal plates, especially at apex; compare with figs. 3, 9, 

 and 6 of Plate 2. 



4. Ventral view of the genital segment of Eleodcs obsolcta; compare with 



figs. 4, 10. and 7, I'late 2; a. i)aranal plate (see p. 19). 



5. Dorsal view of the right valve of Eleodcs leteheri; note resemblance to 



fig. 12, Plate 1. 

 , 6. Ventral view of the left valve of Eleodcs leteheri. 



7. Dorsal view of the right valve of Eleodcs aeuticauda; compare with 



figs. 12, 13, and 9 of this plate, and figs. 8 and 18 of Plate 1. 



8. Ventral view of the left valve of Eleodcs acutieaiida; note the large 



appendage and the concave surface before the apex. 



9. Dorsal view of the right valve of Eleodcs dcntipcs; compare with figs. 



11 and 13 (type) ; note the variability of the apical margin of the 

 dorsal plate and form of the appendage. 



10. Ventral view of the left valve of Eleodcs dent i pes. 



11. Dorsal view of the right valve of Eleodcs dentipes, showing variation. 



12. Dorsal view of the valve of Eleodcs laticollis; compare with fig. 7. 



13. I)(n'sal view of the right valve of Eleodes dentipes, forma confiiiis 



(type) : compare with figs. 7, 9, and 12. 



14. Dorsal view of the right valve of Eleodcs porcata : note the l)roadly 



rounded external apical lobe: compare with fig. 3; the explanate mar- 

 gin of the dorsal plate is less diaphanous, so that the body of valve 

 does not show through it. 



15. Dorsal view of the right valve of Eleodcs obsolcta; variety showing the 



obsolete explanate margin toward base. 



16. Dorsal view of tlie right valve of Eleodes carbonaria; compare with 



figs. 3, 14. 17, 18, and 20 ; also figs. 3, 6, and 9, Plate 2. 



17. Dorsal view of the right valve of Eleodcs huineralis; see for com- 



parison fig. 10. 



18. Dorsal view of the right valve of Eleodcs euncnticollis; see for com- 



parison fig.. 16; note tlie more membranous external apical lobe. 



19. Dorsal view of the right valve of Eleodcs hispilabris ; compare with 



figs. 7, 8, 19, and 23 of Plate 4. 



20. Dorsal view of the right valve of Eleodes trieostata; note the distinctly 



oblong dorsal plate and compare with fig. 11, Plate 1. 



Plate 4. 



Fig. 1. Dorsal view of the right valve of Eleodes scabricula ; compare with 

 fig. 12, Plate 2; the notch defining the apex from the dorsal plate 

 appears to be constant. 

 2. Dorsal view of the right valve of Eleodes neotoma^ ; note the subapical 

 position of the appendage and compare figs. 9, 10, and 16. 



