THE JUMPING PLANT-LICE OR PSYLLIDiE OF THE NEW WORLD. 79 



within. Wings much longer than body, very large, apex acute to 

 subacute, about two and a half times as long as broad; Rs about as 

 long as M to furcation point; second marginal cell unusually large. 

 Hind wings relatively very small. 



Genitalia. — Male. — Anal valve with a large, lobate, posterior pro- 

 longation; anus on a slender dorsal epiphysis; forceps long, somewhat 

 cultrate in form, erect on basal two-thirds, apex flexed inward, not 

 acute. Female. — Genital segment about half as long as rest of 

 abdomen; dorsal valve a little longer than ventral, acute. 



Described from more than 100 specimens of both sexes from the 

 following localities: West Falls Church, Virginia (Nathan Banks); 

 Clayton, Georgia (J. C. Bradley), May 18, 1911, altitude 2,000 feet; 

 Burton, Georgia (Bradley), May 21, 1911, altitude 1,800 feet; Atlanta, 

 Georgia (Bradley), June 30, 1909; Athens, Georgia (Bradley), June 

 15, 1909; Austell, Georgia, August 27, 1910; Savannah, Georgia 

 (Schwarz), April 15, 1884; Thahnon, Georgia, April 28, 1911; Billys 

 Island, Okefenoke Swamp, Georgia, June, 1912; Crescent City, 

 Florida (Hubbard), May 23, on persimmons; Tampa, Florida (E. P. 

 Van Duzee), May 2, 1908; San Ajitonio, Texas (E. A. Schwarz), May 

 9, 1907; Devils River, Texas (F. C. Bishopp), May 5, 1907; San 

 Diego, Texas (Schwarz), April 29. No host plant data accompanies 

 any of these specimens except the two taken on persimmons in 

 Florida. This is said to be a very common species on persimmons, 

 Diospyros virginiana, throughout the southern portion of the country. 

 W. H. Ashmead's account of the life history of the species is given 

 as follows (Ashmead '81:221-223): 



In the summer of 1879 I noticed for the first time that the leaves of the persimmon 

 trees, Diospyros virginiana, in the vicinity of Jacksonville, Florida, were very much 

 discolored, curled and distorted; on most of them, too, were numerous small, warty 

 galls. A thorough examination under the curled and twisted parts of the leaves 

 revealed numerous small, flattened hemipterous bugs, arranged in rows and covered 

 with a fine mealy or powdery substance; on being disturbed they secrete large watery 

 globules, the color of milky water. A careful study of these during the past two 

 years has enabled me to completely work out their life history. 



By the middle of April they are found in considerable numbers on the young leaves 

 * * *. At this time, also, they are caught copulating, soon after which the female 

 begins depositing her eggs. These are very minute, 0.01 of an inch in length, elongate- 

 ovate, pale greenish in color, with a wavy filament beneath at the thick end, nearly the 

 length of the egg, extending backward over it. These are laid along the margin of 

 the leaf without regard to regularity, the female first preparing for their reception 

 by secreting a threadlike gummy, transparent substance along the extreme edge of 

 the leaf; she then fastens them in place by the beak, which adheres securely to the 

 gummy substance. 



The eggs hatch in from five to six days (actual observation) and the leaf from their 

 punctures curls completely over them. Under this they reside until just before 

 their transformation (last). The pupa then comes forth, attaches itself to a twig or 

 leaf, and changes into the perfect fly, escaping through a longitudinal slit in the head 



