ROLAND HAYWARD. 235 



39. T. scitulus Lee, Ann. Lye, 1848, iv, p. 471.— Mots., Etud. Ent., 1862, xi, p. 27. 



40. T. vorax Lee, Ann. Lye, 1851-2. v, p. 194. 



41. T. pumilus Dej., Spec, 1831, v, p. 43 (Bembidium). 



umbripennis Chaud., Eev. et Mag. Zool., 1868, Ser. 2, xx, p. 213. 



42. T. edax Lee, Ann. Lye, 1851-2, v, p. 194. 



43. T. columbiensis (Zimm. Mss.), n sp. 



44. T. corruscus Lee, Ann. Lye, 1848, iv, p. 472.— Mots., Etud. Ent., 1862. xi, 



p. 27 (Polyderis).— Chand., Rev. et Mag. Zool., 1868, Ser. 2, xx, p. 211. 

 xneipennis Chaud., Rev. et Mag. Zool., 1868, Ser. 2, xx, p. 211. 



45. T. sequax Lee, Ann. Lye, 1848, iv, p. 472. 



APPENDIX. 



It has been thought best to follow the course adopted in my 

 paper on Bembidium aud here include the original descriptions of 

 those species which have been described from North America, but 

 which have not yet been recognized in the United States. The 

 work in which they were published is quite rare in this country 

 and consequently inaccessible to the majority of our students. 

 Doubtless some, at least, of these names are synonymous with 

 others now in use, but the descriptions are so meagre that it has 

 not been possible to identify them. As all the species were de- 

 scribed by Motschultsky, I have reprinted the table of the genera 

 into which he has divided Tachys (Etudes Ent., 1862, xi, p. 27). 

 The species follow under his generic names, those of each genus 

 being arranged in alphabetical order. 



The table of genera is as follows : * 



I. "Antennes allongees, composees d'articles plus longs que larges. 



a. —Corps plus on raoins convexe, ovalaire, luisant : 



1. elytres retrecies vers la base, glabres an milieu ; avec un petit sillon 



basal et un entier vers la suture et la marge lateral- -Tachylopha. 



2. elytres profondement sillonees vers la suture Tavhynra, 



b. — Corps plus ou moins deprime, oblong on parallele, avec un reflet metal - 



lique changeant sur les elytres, qui sont striees surtout vers la suture. 



Tachys. 



c. — Corps deprime, allonge, parallele; elytres multi striees ; tete petite, 



courte ; troisieme article des palpes max. elargi L.y ninast i*. 



II. Antennes pas ou a peine plus longues que la moitie du corps, robustes, gros- 



sissant vers l'extremite et composees d'articles plus ou moins larges. 



* Of oyr other North American species Motschultsky refers the following to the 

 genera given in the table : 



Tachyara — dolosus, xanthopus, vivax and incur vus. 

 Tachys — fallax and scitnlus. 

 Lymnastis—senescens 

 Tachymenis— nanus and flavicauda. 

 Polyderis — corruscus. 



TRANS. AM. ENT. SOC. XXVI. MARCH, 1900 



