isiU.] 7 



Genus SCHIZOCERUS. 

 s. Schizocerus plumigera. 



Hylotnma pbiniigcra, Kluo;. Crypius Khigii. Leach. 

 9. "Antenn;^ black; headl)laek: thorax saftYon yellow : alidomen yellow ; 

 aims black, legs black, yellow before : wings fuscous hyaliue.'" 



A specimen from the Rocky Mountains diifers as follows. It has a 

 spot on each side of scutel (below it"), the basal plates and the breast 

 black, the femora blackish except at tip, the tibife and tarsi color of 

 body ; winos subhyaline toward the tip ; the 1st submarginal cell hav- 

 ing a small i-ounded cell at its base as in Ht/lotoimt, but the cross ner- 

 vure is incomplete; 2nd cell half the length of 1st (n- 3rd and con- 

 tracted beneath, its first cross nervure fractured at base, the 2nd or 

 outer one fractured at base and summit ; the lower middle cell of under 

 wings half as long as the upper one. 



Rocky Mountains. Col. Ter. (Coll. Ent. Soc. Philad.) 



Genus NEMATUS. 

 ;». Nematus Marylandicus. u. sp. 



Black, apex of abihjinen rufous: knees and part of tibire whitish, wiugs hya- 

 line. (Long 0.28. Br. wings 0.63 in.) 



%. Color black; autennfe as long as body, slender, cylindrical, enlarged at 

 joints, covered with a whitish pile: head and thorax with short whitish hair, 

 longest on the labrum. where it is brownish: head smooth ami shining, the 

 depressions at sides of ocelli connected behind by a straight groove, the enclo- 

 sure below lower ocellus rounded and open above and below; nasus with a 

 deep angulate notch : apical segment of abdomen yellowish piceous: legs black, 

 their four anterior knees, tibife. tarsi beneath and at base above, and basal half 

 of posterior tibi;e whitish; nails piceous. their tijjs red: wings hyaline, stigma 

 and costa pale: 2nd submarginal cell widest at the angle receiving 1st recur- 

 rent nervure, the 2nd nervure received just within the 3rd submarginal cell. 

 Maryland. (Coll. Ent. Soc. Philad.) One specimen. 



10. Nematus sub-albatus, n. sp. 



Black ; teguhe, venter and legs, excej^t the middle of femora and tips of 

 hinder tibise, whitish. (Long 0.28, Br. wings 0.62 in.) 



9 • Color black : antennae two-thirds the length of body, somewhat flattened, 

 covered with short prostrate hair; 3rd joint longer than 4th; head not coarsely 

 punctured ; furrows at sides of ocelli connected above by a slender semi-circu- 

 lar groove ; a shallow depression below the lower ocellus, beneath which is a 

 deeper triangular siniis: nasus slightly emarginate, its edges, base of man- 

 dibles, labrum and palpi, white: tegulee, anterior angle, venter and legs (in 

 jjart) white: base of coxre, a band on all the femora, apex of posterior tibise, 

 posterior tarsi and apical joints of all the tarsi black: wings hyaline, apex and 

 liase of costa white: 2nd submarfcinal cell widest at the angle receiving 1st 



