lS94-] ENTOMOLOGICAL NEWS. 127 



once distinguished by the submedian cell receiving the basal vein 

 much before its apex, while in Alyson this vein is interstitial. 



Fig. I. — Fore wing of Didineis Wesm. 



FEMALES. 

 Head and thorax black; abdomen red; spot on clypeus and scape beneath 



yellow tezana. 



Head, thorax and abdomen reddish brown ; clypeus and scape of the 



same color peculiaris. 



MALES. 

 Antennae long and slender, the joints not at all nodose beneath, texana. 

 Antennje stout, the joints of flagellum more or less nodose. 



Black, first two segments of abdomen red nodosa. 



Entirely reddish brown, the apical segments of abdomen fuscous. 



peculiaris. 



1. Didineis texana Cress. 



Alyson te.vanus Cr., Tr. Am. Ent. Soc. iv, p. 226, r^, 1873. 

 Didineis texana Handl., Sitzb. Akad. Wissensch. Wien, Math- 

 naturw. Classe, xcvi, p. 267, 9cf- 



Virginia, District of Columbia, Texas. Mr. 

 Guignard has sent me an unusually large speci- 

 men, taken at Ottawa, Canada, by Mr. W. H. 

 Fig. 2.— Last 2 joints Harrington. 



of male antenna. 



2. Didineis nodosa n. sp. 



rf . — Anterior margin of clypeus subtruncate; front and vertex with ver>' 

 fine and close punctures; antennae stout, the first joint of the flagellum 

 longer than the second and much thickened beneath at J:he apex, joints 

 2-5 also thickened in this manner, the tenth joint produced into an acute 

 spine beneath at apex, the last joint very large and curved; metathorax 

 with coarse striations, those within the elongate, semi-elliptic enclosure 

 placed obliquely on each side of a longitudinal, central, raised line; fore 

 legs much flattened and dilated, the lower margin of fore femora suban- 

 gular medially; abdomen finely and closely punctured. First two seg- 

 ments of abdomen red; tibiae and tarsi yellow-testaceous; scape beneath, 

 clypeus, except in middle, inner orbits to about the middle of front yellow; 

 last joint of flagellum reddish testaceous; wings subhyaline, iridescent, 

 without fuscous markings. Length 6 mm. 

 State of Washington. 



