AMERICAN HYMENOPTERA. 339 



piceous ; a transverse blackish line on neck, a spot on each side of 

 collar near teguloe, connected through the suture back of anterior lobe, 

 a larger spot on each side of scutel and spots on metathorax black ; 

 four brown spots on mesothorax, two on anterior lobe and one on each 

 side lobe ; tergum blackish at sides, paler in middle ; legs yellowish ; 

 tips of femora, the tibiae and tarsi brownish; wings hyaline, large, 

 nervures obscure ; stigma pale; marginal cross-nervure coinciding with 

 second cross-nervure ; third brachial cell with incomplete cross-nervure. 

 Canada, Mass., Conn, la. (Say.). 



1.5. Lyda luteicornis, n. sp. 



Black; the ajjex of antennse, siiots and crescents on head and thorax yellow, 

 abdomen rufous. Length 0.40. Br. wings 0.76 inch. 



$. — Shining black; antennae 28-jointed, black, the last IG joints 

 white ; third joint one-half longer than fourth, head polished, with 

 shallow punctures; two oval dots above ocelli, enclosed by two cres- 

 cents, (touching summit and eyes, widened at ends, the lower bent 

 away from the eyes and deeply cleft) two dots above antennae, inner 

 orbits up to crescent, cheeks, edge of clypeus, and mouth below, yellow; 

 mandibles tipped with black, with a strong inner tooth; teguhie and a 

 spot beneath, V-spot, scutel and a transverse line behind, pale yellow ; 

 abdomen rufous, paler in middle beneath ; basal segment blackish ; 

 legs pale yellow, coxae and apical three fourths of hinder tibiae black ; 

 hinder tarsi ferruginous, claws apparently bifid; wings hyaline, costa 

 blackish, second brachial cell Avith incomplete cross-nervure. 

 Farmington, Connecticut. Three 9 . 



In one case the lower end of the crescent upon the face is enlarged 

 into a square and not cleft. 



16. L. scripta. 



Tarpa scripta, Say, Long's 2nd .Exp., ii, 1824, 312. 



Lyda scripta, Harris Catalogue. Norton, Bost. Proc. viii, 223. 



"Black, with white lines and spots; abdomen rufous." Length 0.44. Br. 

 wings 0.92 inch. 



" Hypostoma on its anterior margin, mandibles and palpi whitish ; 

 line upon the orbits extending from near the antennae to the occiput 

 and together with an insulated spot each side on the vertex, when 

 viewed from behind presenting the form of the figure 3, white; a white 

 slightly oblique spot above the base of each antenna; inferior orbits 

 white : thorax with an abbreviated, transverse, angulated line before, 

 slightly interrupted in the middle, a line before each wing and three 

 small spots on the middle placed triangularly, white; wings hyaline. 



