514 BULLETIN i)S, TXITED STATES XATIO.XAL MUSEUM. 



Fig. 21. Elcodcs Iccontel (typical: female).— Dorsal view of the right valve; 

 compare with figs. 10 and 12, Plate 4. 

 22. Elcodcs .scuhrom (female).— Dorsal view of the right valve; compare 

 with fig. 11, Plate 4 ; also fig. 4 of this Plate. 



I'LATE 6. 



Fig. 1. Elcodcs hUincIiardil, female. — Dorsal view of the right valve; compare 



with fig. 10, Plate 4. 

 2. Elcodcs hopinrujii, female. — Dorsal view of the genital segment; compare 



with fig. 4, Plate 5. 

 o. Elcodcs cascyi, female. — Dorsal view of the genital segment; compare 



with fig. 14, Plate 4, and fig. H, Plate T.. 



4. Dorsal view^ of the genital segment of Ccrenopiis coitcolor. 



5. Edeagophore of Cercnopiis concolor, dorsal view. 



6. Sternite of Cercnopus concolor. 



7. Dorsal view of the edeagophore of Traulodcrus cosiattis. 



8. Sternite of Trogloderus costatus. 



- 0. Dorsal view of the edeagophore of yi/ctoponts ccquicollis. 



10. Dorsal view of the genital segment of Aiictoporus a;quic(d\ls. 



11. Edeagophore of EJcodUiiorpha holcan, dorsal view. 



12. Dorsal view of the genital segment of EJcodimoritlni holcaii. 



l.S. Dorsal view of the genital segment of Trof/Iodcrus costatus, female. 



14. Dorsal view^ of the genital segment of Troglodcnis tiihcrcuhitiis, female. 



15. Last two joints of the maxillary palpi of Trogloderus tuhcn-uJatiis. 



16. Mentum of Elcodcs nigrina, female. 



17. Labrum of Elcodcs nigrina, female.' 



IS. Inferior internngnal process of a metatarsns in Elcodcs dcniijics. male. 



19. Ungnis from metatarsus in E. dcntipcs. male. 



20. Mentum of Discogcnia inarginata, male. 



Plate 7. 



Fig. 1. Ventral view of the male genitalia of Elcodcs cordata. edeagophore 

 partly extruded. 

 2. Dorsal view of the same, edeagophore completely extruded. 

 ,^>. Ventral view of the genital segments of Elcodcs cordata, female, valves 

 abducted. 



4. Dorsal view of the same. 



5. Ventral view of the sternite of Elcodcs parricidlis, ai)icale slightly visible. 



6. Ventral view of the apicale of the edeagophore of Elcodcs cordata, show- 



ing claviie partly abducted and edeagus nearly protruded. 



7. Ventral view of the apical half of the edeagophore of EntJtaphion con- 



tusum, showing parts in place. 



8. A'entral view of the apical half of the edeagophore of Elcodimorpha 



holcan, showing relative position of edeagus, clnv:e, and subal:e; com- 

 pare with figs. 7 and 1. 



Explanation of figures. — a, apicale; h. edeagus; c, clava ; d, basalo; r. sternite; 

 /, apex of right lobe of sternite; g, membranous interlobar region of ster- 

 nite; /(, membranous apex of the valve: /. apixMidage: ./. aiiicnl angle of the 

 dorsal i)late; Ic, submarginal groove: /, exi)Ianate external border of the 

 dorsal plate: ni, ventro-lateral surface; n. membranous Sth segment, with 

 sclerites of the paranal region and their arliculatiiMi with base of the ventro- 



