The lonii of tlio liilinini and tlu' jiusterior coxa; a little Idii^cr tiiau 

 ordinary, seeiii to separate this from Taiitliredo^ but in other respects it 

 appears to agree with tliis genus. 



FENTJSA Leach. 



F. curtus 11. sj). 9- Length 0.14. Ex. wings 0.32 inch. 

 5. Black, abdomen piecons. Antennre toward tip, the hibnun and inaudibles 

 piceous; a smooth fovea between an tennre ; tegulse and abdomen piceous; thorax 

 shining, smooth, each segment of abdomen depressed toward apex; legs ochra- 

 ceous; coxa^ and femora (except at tip) black: apical joints of tarsi blackish; 

 wings semitransparent, stigma and costa darker, nervures black. 



Penn.sylvania. (Coll. Knt. 80c. I'hik.) 



CR.2ESXJS Leach. 



C. latitarsus, n. sp. 9 • 



' 'rasit.'i .se^Jfenfriona/is, H. ('nt. Length O.P.S. Ex. wings 0.72 inch. 

 9. Black; base of tibife white. Antennae as long as body; body shining hluc- 

 black: a crescent-shaped elevation between antennae ; clypeus emarginate; labnini, 

 mandibles and palpi piceous; mesothorax with confluent longitudinal piuictui'es, 

 j)leura dull witli dense punctures; legs black, anterior pairs piceous toward tip: 

 posterior trochanters and basal half of all the tibife white; posterior tibife enlarg- 

 ed and flattened toward tip; first joint of tarsi still wider, flattened, longer than 

 the remaining tarsi, its edges elevated to a rim on both sides: wings hyaline, a 

 little smoky below stigma; a dot in middle of second and (liird subraarginal cells. 



Pennsylvania. (Coll. Ent. Soc. Phihi.) Mass. (Harris Collection.) 



The name aeptenfriojialiH was previously given to a European spe- 

 cies. 



LYDA Fabr. 



Sec. ^. Anierior tibke ivith one side spur. 



L. abdominalis n. sp. 9- Length 0.50. Ex. wings 0.96 inch. 



9- Black, with rufous abdomen. Two basal joints of antennfe black, tipped with 

 yellow (remainder wanting), two oval spots on vertex, partly enclosed by two 

 crescents, which join on the occiput two lines extending downwards on each outer 

 edge of head to mandibles, two oval spots outside of antennae and a transverse 

 line on clypeus, white; mandibles rufous, palpi pale; teguhe, a spot in front and 

 one beneath, V-spot, seutel, dot at base of metathorax, a sjiot before each of the 

 coxa- on the pectus, pale straw color: abdomen rufous, the apical segment above 

 and a spot on the two apical segments beneath, black; legs at base black, lerrugi- 

 nous below tips of the femora; tips of tibife and apical joints of tarsi blackish ; 

 tips of coxae and ;i line on femora beneath white : wings large, fainth'' smoky, 

 stigma lengthened, not rounded, ferruginous; line within costa opened into a Y, 

 upper limb longest. 



Pennsylvaniii. (Coll. Ent. 80c. Pliil;i.) 



