34ft GEO. H. HORN, M. D. 



EXPLANATION OF PLATE IIL 



Fig. 1. — Smicrips pahnicola Lee; a, underside; b, mentum and mouth beneath ; 



c, maxilla; d, mandible; e, antenna; /, tarsus. 

 Fig. 2. — Claw of Brachypterus. 

 Fig. 3. — Claw of Amartus. 



Fig. 4. — Maxilla of Amartus tinctus Mann,, (after Murray). 

 Fig. 5. — Anthonceiis agavensis (Crotch). 



Fig. 6. — Thorax and pygidium % and 9 of Cer cus pe7inatus Mnrr. 

 Fig. 7. — Last ventral % Colastus maculatus Er. ; a, sexual segment protruded. 

 Fig. 8. — Thorax of Soronia grisea Linn. 

 Fig. 9. — Same of S. guttulata Lee. 

 Fig. 10. — Thorax of Conotelus obscurus Erichs. 

 Fig. 11. — Same of C. stenoides Murr. 

 Fig. 12. — Thorax beneath of Cryptarcha ampla Erichs.; a, maxilla; b, mentum 



and ligula. 

 Fig. 13. — Head beneath of Prometopia sexmaculata Say. ■ 

 Fig. 14. — Psilopyga histrina Lee; a, b, c, tibiae of P nigripennis Lee. 

 Fig. 15. — Cybocephalus nigritulus Lee, nerved laterally; a, outline above. 

 Fig. 16. — Elytra! markings of Ips confluenius Say. 

 Fig. 17. — Same of I. vittatus Say. 

 Fig. 18. — a, b, c, tibiae of Cychramus Zimniermanni Horn ; d, e,f, same of C. adus- 



tus Er. 

 Fig. 19. — Middle tibia % Epuraea rufida Mels.; h, same oi E.monogama Crotch, 



with tarsus. 

 Fig. 20. — Posterior tibia % Epuraea luteola Erichs. 

 Fig. 21. — Posterior tibia % Carpophilus antiquus Mels. 

 Fig. 22. — Middle and posterior tibia % Stclidota ge^ninata Sa,y. 

 Fig. 23. — Head, showing epistoma and labrum of Ips obiusus Say; a, middle 



and posterior tibia % ; b, same of 9 • 

 Fig. 24. — Orthopeplus quadricollis Horn. , . 



Fig. 25. — Perihalycra Murrayi Horn. 

 Fig. 26. — Maxilla of Rhizophagus (after Murray). 



Fig. 27. — Thorax beneath Pityophagus ruftpennis Horn. » 



Fig. 28. — Brachypeplus glaber Lee. 



The sketches above have been drawn from nature from dissections 

 made by myself, except 4 and 26 which are from Murray whose details 

 are reliable. G. H. H. 



