I have not been able to find essential characters for esta- 
blishing the genus Comirus of Stephens, although he has placed 
Cypha between it and Tetchy porus ; the length of the abdomen 
depending on casualties in drying the specimens, can be no 
criterion, and the slight differences in the elytra will certainly 
not warrant their separation : the other differences noticed by 
Erichson can only be employed as sectional. On the other 
hand the remarkable genera Deinopsis and Centroglossa have 
been undoubtedly confounded with the Tachypori, and would 
have remained so if Mr. Matthews had not paid attention to 
that admirable test the trophi. 
Mr. Stephens has named about 40 species of Tachypori, 
a very large portion of which, it is to be feared, will sink into 
varieties. Not having hitherto illustrated the true Tachypo- 
ridse, (for the Aleocharse, as will be seen by our dissections, 
are a distinct race from this subfamily) I am happy to have 
found a neglected species of Linne’s for that purpose. The 
following are typical Tachypori. 
* CONURUS Step . Entirely silky : 4 anterior tihiee slightly 
bristly : mesosternum keeled, Erich. 
1. immaculatus Step. — fusculus Erich . 391. 4? 
2. bipustulatus Fab. — Panz. 16. 21. — bimaculatus Grav.? 
3. littoreus Linn. — Curt. Brit. Ent. pi. 762. 
A specimen was sent to me from Manchester by the late 
Mr. E. Hobson, and I took another, I believe, in the neigh- 
bourhood of London. 
4. pubescens Gyll. — conicus Mars. 
5. testaceus Fab. is probably a var. of T. pubescens. 
** Smooth and shining : sides of elytra bristly : mesosternum 
not keeled. Erich. 
6. dimidiatus Fab. 7. abdominalis Fab. 
8. Hypnorum Fab. 
9. nitidulus Mars. Erichson gives under O. brunneus Fab. 
the T. nitidulus and abdominalis of Gyll. as varieties. 
10. marginatus Grav. Erichson considers a var. of T. Hyp - 
norum. 
1 1. melanurus Mars. 12. obtusus, Linn. 
13. analis Grav. — Panz. 22. 16. is a var. of obtusus. Erich. 
14. marginellus Mars. — nigricornis Gyll.? 
15. merdarius Panz. 27. 9. 
16. chrysomelinus Linn . — Panz. 9. 14. — meianocephalus Fab. 
17. pusillus Grav. 18. ruficollis Grav. 
The elegant Linncea borealis , Two-flowered Linnaea, is 
drawn from a dried specimen presented to me by Sir W. J. 
Hooker. 
