REVISION OF ELEODIINI BLAISDELL. 515 



lateral lamina sllo^yiny through; o, steriiite of the Tth segment: o', median 

 basal process of the .same; />, sternite of the (ith segment, tigs. 1 and 8; tergite 

 of the Cth segment, figs. 2 and -1; q, supra-anal plate; r, tergite of the Tth seg- 

 ment; s, fossa for the appendage; t. superior pudendal membrane; u, dorsal 

 plate; v, valvular membrane; ic, inferior pudendal membrane; x, genital ori- 

 fice; I/, intlexed ake of the apicale; c, intlexcd sides of the basale. 



Plate S. 



Fig. 1. Head of Eleodcs dciitipcs, showing lines of measurements: a, median 

 line; &, post-marginal ocular line; c. post-ocular line. 



2. Left mandible of Eleodcs quadricoUis (female), internal surface show- 



ing: molar (c), htcinia (h), and post-molar membranous lobe id). 



3. Labium of Eleodcs dcntiijcs: a, the chitinous paraglossa which is connate 



with the body. 



4. Diagram showing the relative lengths of the different segments of the 



legs and abdomen in Eleodcs suJeipennis: 



A, femora : (/. metafemora ; b. mesofemora ; c. profemora. 



B, tibi;e : (/, metatibia ; c. mesotibiu ; /, protibia. 



C, tarsi: r/, metatarsus; Ji, mesotarsus; /, protarsus. 



D, abdominal segments: j, tirst visible; k, second; I, third; m, fourth; 

 «. fifth. 



5. Mentum and labium of Eleodcs scabrosu. 



6. Mentum and labium of E. chiviconiis, slightly extended to show relation 



between labium and lateral lobes of the mentum, the middle lobe 

 free at apex. 



7. Protibial spurs of Eleodcs quadricoUis, female: a, posterior; b, an- 



terior. 



8. Side view of the first two joints of the protarsus of Eleodcs sulcipcnnis, 



female: a, tuft of modified siiinules at apex beneath, the latter 

 thickened and produced ; b, apico-marginal tuft of spinules bounding 

 groove at apical margin of second joint ; c, apic-al spines. 



9. Outline of side view of first two joints of the protarsus of E. snlci- 



lioinis, male, showing the greatly thickened (o) and produced apices 

 l)eneath, .spines not shown, groove obliterated. 



10. Inferior surface of right mandible of E. dciitipcs, female, X 28. 



11. Maxilla of E. deiitiijcs, female: a, palpus; b, galea; c, lacinia. 



12. Superior surface of right mandible of E. deiitipcs, female, X 28. 



13. Hypopharynx of E. dentipcs, female, X 28. 



14. Protibial spux'S of E. sulcipcnnis, female: a, anterior; posterior without 



lettei-. 



15. Inferior view of the mouth parts of E. dentipcs, female, showing men- 



tum, submentum, gular sutures, labium partly exposed, maxilla, and 

 mandibles. 



16. Ventral view of the first two joints of a protarsus of E. dciitipcs, male, 



showing entire plantar groove. 



17. Ventral view of first two protarsal joints of E. dentipcs, female, showing 



plantar groove entire. 



18. Lateral view of first two protarsal joints of E. scabricnla, male, showing 



first joint moderately produced at tip beneath, groove entire on the 

 second. 



19. Lateral view of first two protarsal joints of E. seabricula, female, show- 



ing tip of first joint more produced with tuft of moderately fine modi- 

 fied spinules. 



