AAIERICAN HYMENOPTERA. 241 



Section 2. — {Hemichroa,) Stephens. 

 Hiwichroa, Steph., Mand. vii, 1835. 

 Leptocerca, Hartig, Die Blattw. 228. Dineura, Sec. 2. 



\Yiiiijs — Two uinruiiiiil and four subiiiart;inal cells, the second sub- 

 niar<iinal receivino- t\vo recurrent nevvures, the third subniarginal 

 widened toward the end; lanceolate cell contracted; under wings with 

 two njiddle cells. 



Aiifnivae 9-articulate, lone;, setaceous. 



Bo(h/ as in Selandria ; hinder tibial spurs long. 



Europe. 



Section .3. — (Mesonmira,) Ilartig. 

 Menoncura, Ilartig, Die Blattw. 228, Sec. 3. 

 Pristis, Lepel, Brulle, Hym. v, 665. 



PF/)*;/.s— Two marginal and four subniarginal cells, the second receiv- 

 ing two recurrent nervures, the second being received at the intersec- 

 tion of the second and third submarginals ; lanceolate cell petiolato; 

 vmder wings with two middle cells. 



Aiitetiufv l)-articulate, formed as in Selandria. 



J3o</j/ as in Sclninlria ; hinder spurs short. 



4. Dineura parvus, n. sp. 



Black ; the apex of venter and the legs rufous. Length 0.14. Br. wings 0.30 

 inch. 



% . Body short and stout; antennae moderate, filiform, not slender, 

 third and fourth joints equal, apical joints piceous ; head coriaceous, 

 without depressions about ocelli; nasus truncate; tegulae and apex of 

 venter piceous; legs yellow rufous; wings hyaline, nervures brown, 

 marginal cross nervure curved, received beyond middle of third sub- 

 marginal cell, which is a little longer than wide. 

 Farmington, Conn. One S . 



45. SCIAPTERYX, Stephens, 

 Sciapieryx, Stephens, Brit. Eut. Mand. vii, 1835, 56. 



Wivgs short and broad, two marginals, divided by a curved vein, 

 and four submarginal cells, of which the second and third each receive 

 a recurrent nervure. 



Aiitoivse 9-articulate, short, irregular, third as long as fourth and 

 fifth together, remainder gradually diminishing in length. 



Head broad, large, rough ; eyes small ; clypeus and labrum eniargi- 

 nate 



Abdomen short, stout, depressed, acute at the tips. 



Lecja short, simple, tibial spurs short, obtuse. 



TRANS. AMKR. ENT. SOC. (31) SEPTEMBKK, 1867. 



