248 JOHN L. LE CONTE, M. D. 



[Seems to resemble B, bimaculatum but is smaller; B. gelidum is also related tn 

 it but is much more slender and smaller.] 



Ochthedromus lacunarius Zim. — Length 21 lines. Piceous with slight metal- 

 lic lustre ; palpi, antennre and legs ferruginous; head elongate, with deep fron- 

 tal grooves, and tolerably flat eyes. Prothorax short cordate, very smooth, 

 strongly narrowed behind, with rectangular hind angles; basal impressions 

 deep, with a sharp carina near the angle, but not punctured at the middle; 

 elytra with 6 punctured dorsal strise, of which only the sutural reaches the tip ; 

 the 7th stria is entirely wanting, but the 5th becomes again distinct at the tip, 

 and therefore appears interruj^ted. — Middle States. [I have determined this 

 species, probably incorrectly, as Peryphus picipes Kirby, but fortunately with- 

 out publishing any remarks which can confuse the synonymy.] 



Ochthedromus &ssirsn.\is.=-Bemhidium ass. Gyll., Dej, <S;c.=0. frontalis Lee. 

 Ann. Lye. Nat. Hist. N. York, iv, 462. — Europe and North America. 



Tachys. [Several species are described in the MSS. of Dr. Ziramer- 

 mann, but I have not leisure to collate them with those recently de- 

 scribed by Baron Chaudoir, Rev. and Mag. de Zoologie, 1868. In con- 

 sequence of the descriptions of the species being scattered through 

 several works, some of which are of difficult access, a synopsis of them 

 would be very useful.*] 



* This would appear a convenient place to record some interesting and im- 

 portant remarks on the synonymy of North American CarabidjB recently com- 

 municated to me by Baron Chaudoir, with the kind permission to make such 

 use of them as I judged best for the interest of science. 



1. Lebia cupripennis Boheman.=^cupripennis Chaud; not Californian, but 

 found in Peru and Chili. 



2. Labia cyanella Motsch.==smaragdina Dej. 

 .3. Lebia marginicoUis Dej.:^affinis Dej. 



4. Lebia ornata Say, type and Var. a.^axillaris Dej. 



b. Lebia ornata Say, var. /i.^analis Dej. (head corrugated.) 



t). Lehia, 7)iargine!la Dej.=axillaris, (immaculate variety.) 



7. Lebia nigripennis Dej. is not a variety of coUaris Dej. 



8. Lebia cyanea Dej.^smaragdina Dej. (blue variety.) 



9. Cymindis reflexa Lec.^^cribricollis Dej. 



10. Cymindis cribricollis^hec. is a very distinct new species near laticollis. 

 (vide supra.) 



11. Cymindis venator Dej. My two specimens are much larger than ameri- 

 cana, and the {jrothorax is not at all narrowed behind. 



12. Callida cyanipennis Chaud. =smaragdina Dej. 



1.3. Agonum mtididum Dej.^cupripenne (dark colored variety.) 



14. Agonum brevicoUe De].^=Platynu$f rater Lee. 



15. Agonum cupreum Dej. =.4. chalceum Lee. 



16. Agonum striatopunctatus l>ej.^=0. crenulaius Lee. 



17. Agonum decipiens and striatopunctatumX Lee. belong to another sp''cie3. 



18. Agonum octocolus '^la,i\n\\.^=sti.gmosus Lee. 



19. Agonum sordens Kirby.=P. retractus Lee. 



20. Agonum lenum I)e].^picipenne kirby, var c. 



21. OmsLSQMS fascocEneiis Chaud. =riparius, (pale variety.) 



