ONCOMETOPIA TINDATA. 57 



found, though the egg's were not observed. Our latest record for the 

 adults in the iield is Octo])er 10, 1!H)^J, at Courtney, Tex., I)ut it is 

 <iuite possible that they may oceur later. It seems clear that there 

 are two generations of this species, and there is a decided prol)a])ilit3' 

 of at least a partial third generation. 



The species is entirely harmless to cotton and is much more connuon 

 on trees. It was reported as quite injurious to grapes at San Marcos, 

 Tex., May 10, ISSf!," and at (Ireensboro, Ala., ,Iune 25. 1S9(),'' and we 

 have recenti}' had similar reports. Lugger has also given a short 

 description of the species and its work on grape. ^ It was I'csponsible 

 for the so-called " weeping willow,"' which attracted public attention in 

 north Texas in 1SS!^>,'^ the '* weeping*" being due to the reinarkal)le exci'e- 

 tion of this species, which very frequently is ejected to a considerable 

 distance. This has been observed and reported to us 1)V Mr. .1. C 

 Melcher, of O'Quinn, Tex. It has also been recorded in Insect Life 

 as occurring on orange trees in Florida and on cab])age and okra in 

 Mississippi. On August 8, 1890, the records of the Bureau of Ento- 

 niology state that specimens were received from Joseph Husband, 

 Leanderville, 111. He wrote that they infested apple, pear, and plum 

 ti'ees, and he ha,d counted l-i specimens on a young shoot 18 inches 

 long. 



Dr. F. H. Chittenden states that the species is al)undant in the Dis- 

 trict of Columl)ia, and prefers for food the half-woody stems of volun- 

 teer parsnips growing in shade. The nxmphs and adults are found 

 particularly on elder. The species has l)een previously noted on cot- 

 ton by Kile}', Mally, and others, but no injur}' w'as reported. We 

 must therefore conclude that, although occasionally injurious to 

 grapes, the species is practically harmless to cotton. 



DESCRIPTION OF XYMPII, BY E. I). BALL. 



Head of general form of adult, less iin-lined and slightly more inflated, almost 

 seniicirculor before the eyes and evenly rounding on to front. Body stout, about as 

 wide as head, with abdomen tapering to a blunt apex. Color pale straw, marked 

 with irregular pale fuscous lines and spots. Vertex with a fairly definite band con- 

 necting the anteniue, and another between the eyes, usually interrupted in the mid- 

 dle and connected Ijy longitudinal stripes, dividing the disk of the vertex into irregu- 

 lar oval compartments. A median basal pair of compartments contain two very 

 definite dajk spots. Anterior margin of vertex and front with three longitudinal 

 stripes, the median one narrow and definite, the lateral ones broad and irregular 

 above and narrowing down to a line below, where they curve in and unite with the 

 median one. All three stripes interrupted by a narrow light line apparently sepa- 

 rating vertex and front. Pronotal and abdominal segments very irregularly marked 

 with stripes and dots. Legs pale. 



« 1890: Riley and Howard, Insect Life, Vol. II, p. 321. 

 6 1890: Riley and Howard, Insect Life, Vol. Ill, p. 123. 

 C1900: Bui. 69, Minn. Agric. Exp. Sta., p. 136. 



"'1889: Riley and Howard, Insect Life, Vol. II, p. 161, and 1891: loc. cit.. Vol. Ill, 

 p. -115. 



