AMERICAN NEUEOPTERA. 149 



myiid fly; the fly doubtless uses the Chrysopa as a means of trans- 

 portation. 



C'lirysopa albicoi'iiis Fitch.— Head yellowish, a red spot on each side 

 of the clypeus, a blackish curved mark undereach eye, a broad blackish band 

 under antennal sockets extending upward between bases of an ten n x and then 

 bifid, sometimes connected to the two submedian dots on vertex ; upper margin 

 of antennal sockets narrowly margined with red-brown, and a red-brown dot 

 each side behind eye. Palpi banded with red-brown ; second joint of antenna- 

 blackish, basal joint sometimes with a red transverse mark above. Prothorax 

 green, each side with a few dark dots; rest of thorax, legs and abdomen green. 

 Wings hyaline, veins green or yellowish, costal cross-veins almost wholly black- 

 ish, many other cross- veins broadly black on bases or tips, gradate series black ; 

 in hind wings the costal cross-veins only are black. Length 11-12 mm. 



Specimens are from Holly Springs, Miss. ; Marion, Ala. (July 

 2nd) ; Falls Church, Va. ; Burlington Co., N. J., and Sea Cliff" and 

 Ithaca, N. Y. All taken in July and August. Very close to Ch. 

 oculata. hut on the average smaller, and the cross- veins of wings 

 more marked with black. 



I'lirysopa assimilis Banks. — Face yellowish ; a red-brown mark under 

 each eye, a broad transverse band under antennal sockets and extending upward 

 between tbem, above are two reddish dots, and two more on vertex, behind each 

 eye is another red dot. Palpi banded with red-brown. Second joint of antennse 

 black. Pronotum greenish, with some dark spots on each side; rest of thorax, 

 legs and abdomen greenish. Wings hyaline, veins green, gradate and cross-vein- 

 lets marked with black ; the veinlets connecting the median and cubital are 

 wholly black, as well as the divisory veinlet of the third cubital cell. Ptero- 

 stigma moderately distinct. In the hind wings the costal cross-vein lets are 

 wholly black. The fore-wings are broadly rounded at tip, the hind wings are 

 acute at tip; but four veinlets connecting the radial sector to median before the 

 gradate series. Length 14 mm. 



Two specimens, the types, from Ashland, Oregon, Sept., 1897. 

 Similar in markings of head to Ch. oculata, hut differing in coloring 

 of veinlets of wings. 



€/ln\vsopa uigricornis Burm. — Head pale green, a black spot each side 

 at base of clypeus, sometimes another black dot each side above this and below 

 the eye. Basal joints of antenna; pale green, beyond black Air about 15 joints 

 (1-5 of length) ; rest of body green ; wings with green veins, gradate series and 

 the costal cross-veinlets black, many other cross-veinlets black at one end ; ptero- 

 stigma quite distinct. Vertex of bead elevated in a triangular area, which is 

 depressed in the middle and the hind border an elevated ridge. Pronotum rather 

 short, plainly narrowed in front, transverse furrow very deep. Wings moder- 

 ately long, acute at tips. The inner series of gradate veinlets is often incomplete 

 toward tip, and in the hind wings is sometimes wanting. The divisory veinlet of 

 third cubital cell ends much beyond the cross-veiulet. Length 15-20 mm. 



TRANS. AM. ENT. SOC, XXIX. APRIL, 1903. 



