121 



Grandis, Norton. 

 ^^Ventralis, Say. 



Flavomarginis, Norton. 

 ^Externns, Say. 



Lobatus, Norton. 



Dissimilis, Norton. 



Angulifer, Norton. 



Signatus, Norton. 



Verticalis, Say. 



Mellinus, Harris. * 



Tricolor, Harris. 

 ^ Leucostoma, Kirby. 



Rufipes, Say. 



Rufopectus, Norton. 



Californicus, Norton, Proc. Ent. Soc. Phil., 2, May and June. 

 "Punctatus, Norton. Proc. Ent. Soc. Phil. 1, 143. 

 " Semiluteus (n. sp.) 



^^ Subcerulea, Escbscholtz Entomog. 1842. Unalaschka (Russ. Am.) 

 ^^ Nigrofasciata, Escbscholtz Entomog. 1842. Unalaschka (Russ. Am.) 



LIST OF SEVERAL SPECIES MISNAMED TENTHREBO. 



Hylotoma clavicornis - - - - Tentbredo clavicornis, Fab. 



" cordigera - - - - Tenthredo cordigera, Beauv. 



" rubiginosa - - - - Tenthredo rubiginosa, Beauv. 



" thoracina - - - - Tenthredo thoracina, Beauv. 



Dineura obesus ------ Allaotus obesus, Say. 



" litura ------ Tenthredo (All.) litura, Klug. 



13 1 have received a specimen of ventralis from Illinois, a male, which corres- 

 ponds with Say's description. 



1* Tenthredo semiluteus (n. sp.). ? cf- (Length 0.24-30 in., Ex. 0.50-65 in.) 



5 . Black, yellowish-white and rufous ; antennae two-thirds the length of body, 

 slender, luteous, the two basal joints, and anarrow line above, black ; head green- 

 ish white ; a large black spot on vertex, extending down between antennae ; 

 cl)TDeu8 not emarginate, its color, with labrum and mandibles, white j apical 

 joints of palpi black ; tegulse, edges of collar, scutellum, pleura, and pectus pale- 

 yellow or whitish ; a large irregular black spot on pleura ; abdomen and legs 

 honey-yellow ; a black spot in disc of basal membrane ; coxse and base of femora 

 white ; posterior femora nearly black above ; wings hyaline, apical half of stigma 

 and the costa luteous ; marginal dividing nervure curved and received in middle 

 of third submarginal cell. 



cf . The male has its antennae reddish-yellow ; a black spot on upper side of two 

 basal joints ; apical segments of abdomen darkest; legs without spots. 



Three specimens. Conn, and Pa. Dr. Clemens. 



The antennae and wings are very long, the body cylindrical, but shorter than 

 usual. One specimen has but one middle under-wlng cell, and the others none. 

 Were the coxae longer I should place it in Pachyprotasis. 



15 I have not seen the description of these species. 



