85 



fourth a wide one extending entirely around the body, and the last with a narrow 

 baud all goldeu yellow; tuft at end of abdomen eoncolorous above and below with 

 a line of yellow hairs laterally. Legs blue-black varied as follows : fore coxie out- 

 wardly, fore tibia}, all the tarsi, the spurs, and a band at the middle and apex of the 

 hiud tibiiB, yellow; the tarsi, however, have some dark scales, sometimes appearing 

 faintly banded. 



The male agrees with the foregoing, except that the abdominal bands are less dis- 

 tinct and the yellow in the caudal tuft is wanting. 



Expands 17""". 



Obtained from Cyuips gall on twigs of Quercus palustriSj collected by 

 my Mend E. E. Bogue at Sugar Grove, Ohio, and by myself at Central 

 College, Ohio. One imago apj)eared June 10 and one July 15. 



The pupa has the usual form, length 12™'", armed, clypeal spine 

 flattened to a cutting edge apically ; there is a median ridge on the dor- 

 sum of mesothorax, and on either side of it a parallel groove. 



The pupa cell is excavated in the pithy substance of the gall and 

 lined with silk. 



This moth should be compared sufficiently for separation with other 

 species from Quercus galls. It differs from liospes and gallivora as 

 follows: Front blue-black, whilst they have front white; legs black, 

 they have legs yellow ; palpi black and yellow, they all yellow with 

 mere tip black. Ruhristigma has red bar, they black. Compared with 

 ^geria querci from galls on Live Oak, it is twice as large. Querci has 

 lemon yellow lines on side of thorax, autenn<B brown, yellowish be- 

 neath, has nearly all the abdominal rings with bauds, costa lemon yel- 

 low beneath, leg joints whitish, pectus lemon yellow; in all these points 

 rubristigma differs decidedly. The differences are also as striking with 

 nicotiance, with which Henry Edwards compared querci, a species hav- 

 ing a fiery red discal mark. 



Mr. Smith stated that adults of the Squash Borer, Melittia ceto, from 

 last year's larvte, were at present flying on Long Island, and that all 

 stages of the insect might just now be obtained in the same field. The 

 moths collect in the evening on the upper side of the leaves, and are 

 there destroyed in great numbers by farmers. 



Mr. Kellicott stated that full-fed larvi3e of this species began to take 

 to the ground the last days of July in the vicinity of Columbus, Ohio. 

 The second species or stage, mentioned by Mr. Scudder as occurring at 

 Cape Cod, was also present in nbundauce, and seemed perfectly dis- 

 tinct.* 



* Under date of August 25 a note was received from Mr. Kellicott. stating that from 

 larvre entering the ground late in July there had appeared adults during his absence on 

 the following dates : August 20, 22, and 23, all being active M. ceto. This seems to 

 settle the question of the number of broods in central Ohio. There must be two. — 

 Secretary. See also foot-note on p. 82. — Eds. 



