PSYCHE. 



THE SPECIES OF NEMOBIUS FOUND IN NORTH AMERICA. 



BY SAMUEL 11. SCUDDER, CAMBRIDGE, irASS. 



In the Journal of the New York 

 Entomological Society for September, 

 1S96 (Vol. iv, pp. 99-107), I published 

 a paper on " The North American 

 species of Nemobius," describing eight 

 new species and giving a table lor the 

 separation of the fifteen known species. 

 After the printing but before the publi- 

 cation of the paper, and, therefore, too 

 late for insertion therein, I received 

 from Professors Bruner and Cockerell 



three additional new species, in de- 

 scribing which at this time I remodel 

 the earlier part of the table, anil pub- 

 lish it in a complete form, so as to in- 

 clude all the species. Professor Bruner 

 also sends me an additional species, 

 apparently new, from Vera Cruz, but 

 as it is only represented by a male, 

 I refrain from describing it until the 

 female is found ; it seems to be allied to 

 jV. ciibensis. 



Table to determine the N. A. Species of Nemobius. 



A'. Ovipositor as long as or slightly (rarely as much as one-sixth) shorter than 

 the hind femora, generally rigidly straight. 



b'. Tip of ovipositor unarmed ; last joint of maxillary palpi very obliquely 

 excised at apex. 



c'. Tegmina short; wings wanting; last joint of maxillary palpi 

 bicolored, the oblique apical excision of lower margin beginning before 

 the middle. ........ distinguendus. 



C". Tegmina long; wings very long; the oblique apical excision of 

 lower margin of maxillary palpi beginning at or beyond the middle. 



d^. Smaller, darker form ; last joint of maxillary palpi bicolored, 

 the oblique apical excision of lower margin beginning at the middle; 

 tegmina scarcely longer than head and pronotum together ; blade 

 of ovipositor relatively short, its lower margin straight delicatus. 

 d'-. Larger, lighter forms ; last joint of maxillary palpi imicolored, 

 the oblique apical excision beginning beyond the middle ; tegmina 

 much longer than head and pronotum together; blade of ovipositor 

 relatively long, its lower margin arcuate. 



e'. Head and pronotum uniform fuscous. . . ensifer. 

 e'-. Head and pronotum luteous, conspicuously variegated with 

 fuscous pictus. 



