92 APPLE LEAVES HEJtEROBIUS SPECIES. 



fourth part of their length black, basal joint white with a black stripe the whole 

 length on its outer side. Thorax with an impressed transverse line forward of the 

 base of the first segment, and a longitudinal one on the anterior elevated lobe of the 

 second segment. Legs white. Wings very slightly angulated at their tips; stigma 

 marked by a slight opacity; veinlets dusky or black. "Wings expand 1.10. Taken 

 the middle of July. 



41. (40.) A black dot on the outside of tlie first joint of the 

 antennsB at its tip. 



The DoTTED-HOBNED GotDEN-ETE (C . puncticomis) is perhaps only a variety of 

 the preceding, as it corresponds with it in all respects, except that the basal joint of 

 the antennse has only a black dot at its apex on the outer side and there are no dots 

 on the edge of the sockets of the antennse ; the first segment of the thorax has two 

 transverse impressed lines and a longitudinal one behind the middle. The abdomen 

 has a brown stripe above on each side. "Wings expand 1.15. This also occurs in 

 the middle of July. 



42. (39.) Antennge pale. 



The Consumptive Golden-ete (C. tabida) is pale green, almost white; the head 

 is white and without spots, except a slight discoloration on the cheeks in some indi- 

 viduals which commonly disappears in the preserved specimen; the antennae are white 

 their whole length; the thorax is white along the middle and pale green upon each 

 side; the wings are obtusely angulated at their tips, their veins white tinged in places 

 with grepn, the veinlets greenish white, their ends black, the two series towards the 

 tip entirely black. "Wings expand 0.95. Occurs the fore part of August. ■ 



The Lace-wing flies pertaining to the genus Hemerobids differ ' 

 from each other much more than those we hav^e been considering. 

 They are generally of pale dull colors, but vary greatly in size, 

 in the veins and spots upon their wings, &c. Most of' the fol- 

 lowing species have three longitudinal veins branching from the 

 rib vein towards its base on the inner side ; the three last species 

 however, have only two such veins, whilst the first has several 

 and the second has four. 



The Freckled lage-wino (Hemerobius irroratus, Say) is black and hairy with a 

 pale yellowish stripe on the middle and another upon each side of the thorax. The 

 head, scutel and under side of the body is also pale yellowish . The wings are hyaline 

 and glassy, with numerous irregular blackish spots and dots, those on the margin 

 larger and alternated with whitish spots, and there is a largish darker colored spot 

 near the middle and another towards the tips of the inner longitudiaal veins situated 

 upon their connecting veinlets. The veins are black alternating with white The 

 hind wings are without spots except in the region of the stigma; their veins are black 

 with only the marginal and rib veins alternating with white. The wings expand frota 



