COLEOPTERA. 
373 
t Eyes oblong-oval, longitudinal. 
1. Scrobesfoveiform . . 6, Ischnocerides. 
2. Scrobes sulciform. . . . * 6. Sintorides. 
JB. Rostrum depressed, flat above, rarely sinuate at apex ; scrobes scarcely 
ever terminal. 
* Eyes very large 7. Acorynides. 
t Eyes of normal size, lateral 8. Phlmo 2 )hilides. 
II. Rostrum as large at base as bead, very rarely dilated at apex. 
A. Scrobes foveiform. 
* Rostrum not thick scrobes generally covered by its lateral margins. 
1. Eyes entire. 
a. Head and and rostrum normal 9. Tropideridcs vrais. 
b. Head and rostrum forming a vertical triangle. 
10. Zygenodides. 
2. Eyes eniarginate. 
a. Scrobes large, basal 11. Proscoporhinidcs. 
b. Scrobes large, median 12. Corrhech'ides. 
i' Rostrum thick, very short j scrobes exposed. 
1. Antennae very long and slender j club indistinct. 
a. Eyes entire. 
a. Scrobes superior 13. Apolectidcs. 
/3. Scrobes lateral 14. Dccatophanides. 
b. Eyes emarginate 16. Xenocerides. 
2. Antennae robust j club distinct 16. Xylinadides. 
B. Scrobes sulciform 17. Pcelonerides. 
Tribe 2. JBasitropides. Anterior keel of prothorax basal. 
I. Rostrum parallel. 
A. Body elongate, cylindrical. 
* Scrobes sulciform, concealed ' 18. Pasitrojndcs vrais. 
t Scrobes foveiform, exposed 19. Pugonides. 
B. Body oblong, or oval ) scrobes foveiform .... 20. Anthrihides vrais. 
II. Rostrimi very short, cut obliquely on each side ] scrobes sulciform. 
21. Brachytarsides. 
Legion II. Anthribides Anoceres. 
Antennae inserted on the upper surface of the rostrum or on the forehead. 
Tribe 1. Arceocerides. Antennae on the rostrum. 
I. Prothoracic keel basal or subbasal 22. Arceoedrides vrais. 
II. Prothoracic keel antebasal 23. Notioxenides. 
Tribe 2. Xcnorcliestides. Antennae on the forehead. 
These groups include the following, besides the typical genera, and the 
new genera, which will be cited below : — 
1. Phlceopemon, Ptychodercs (Schonh.), Trihotropis (Jek.), and Ceramhy- 
rhynchus (Montr.)j 2. Pugigas \ 4. Acanthopygus (Montr.) and (?) 
Bythoprotus (Pasc.) ; 6. Ancylotropis (Jek.) and Gcnethila (Pasc.) ; 7. Lito- 
corns (Schonh.), Cedus (Pasc.), and (?) Mecotarsus (Schonh.) ; 8. Pezosaris^ 
Ptimcca, Plintheria^ Phcoocrotes (Pasc.), StenoceruSy Gymnognathus, Analotcs 
(Schonh.), and (?) Systellorhynchus (Blanch.), Psocus and Mycteis (Pasc.), and 
Tetragonopterus (PeiToud) ; 9. Systaltoceriis (Imh.), Platyrhinus (Olairv.) 
Pnedreutes (Schonh.), Nessiaria, Apatenia^ Hypseus, Hucus (Pasc.), Lago- 
