Plate XII 



MISCELLANEOUS EUPLECTINI 



Fig. 1. Trimioplectus obsoletus Brendel. Genal seta, 700 diameters. 



Fig. 2. Eutyphlus prominens Casey. Genal setae, 700 diameters. Abundant 



in this species but very scarce in E. similis LeConte. 

 Fig. 3. Bibloplectus ruficeps (LeConte) . Male metathoracic leg, 400 diameters. 

 Fig. 4. Bibloplectus ruficeps (LeConte). Male metathoracic tibial spur and 



tarsus, 700 diameters. 

 Fig. 5. Euplectus interruptus LeConte. Male prothoracic tarsus, 700 diameters, 



mesial face. Note primary and secondaiT claws and contrast with 



Fig. 4. 

 Fig. 6. Euplectus difficilis LeConte. Maxillary palpus, 700 diameters. 

 Fig. 7. Trimiomelba dubia (LeConte). Male maxillary palpus, 700 diameters. 

 Fig. 8. Trimiomelba dubia (LeConte). Male metathoracic leg, 400 diameters. 

 Fig. 9. Trimiomelba dubia (LeConte). Male metathoracic tarsal claws, 700 



diameters. Note minute secondary claw and contrast with Figs. 



4 and 5. 

 Fig. 10. Melba thoracica (Brendel) and Melba sulcatula Casey. Mesothoracic 



tarsus, 400 diameters. 

 Fig. IL Melba thoracica (Brendel). Mesothoracic leg, 150 diameters. 

 Fig. 12. Melba thoracica (Brendel). Metathoracic leg, 150 diameters. 

 Fig. 13. Melba thoracica (Brendel). Prothorax, anterior face. 

 Fig. 14. Melba thoracica (Brendel). Prothorax, posterior face. Note the endo- 



skeleton, conical coxae, brachyscelid articulation, and sensory pores 



on the femora. 700 diameters. 

 Fig. 15. Dalmosella tenuis Casey. Male sternites (0.3 x 0.3 mm.) showing 



peculiar secondary sexual modification of second sternite. Note 



exserted penis and pygidium asymmetrically articulated to the 



right. Penis 0.12 x 0.07 mm. 

 Fig. 16. Dalmosella tenuis Casey. Male sexual modification of second sternite, 



lateral view. 

 Fig. 17. Melba thoracica (Brendel). Head, lateral view. 

 Fig. 18. Trimio7nelba dubia (LeConte). Head of male, lateral view. 

 Fig. 19. Euplectus interruptus LeConte. Head, lateral view. 

 Fig. 20. Melba. Right elytron, lateral face. Note oblique pleural line. 

 Fig. 21. Dalmosella. Right elytron, lateral face. Note parallel pleural line. 



