85 



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

 baud all golden yellow; tuft at end of abdomen eoncolorous above aiul below with 

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

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

 hind 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 Cyiiips gall on twigs of Quercus palustriSy collected by 

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

 College, Ohio. One imago appeared 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 hospes and gallivora as 

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

 they have legs yellow; i)alpi black and yellow, they all yellow with 

 mere tip black. Rubristigma 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, antennae brown, yellowish be- 

 neath, has nearly all the abdominal rings with bands, 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 

 mcotiance^ with which Henry Edwards compared querci, a species hav- 

 ing a liery 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 larvae 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 abundance, and seemed perfectly dis- 

 tinct.* 



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

 larviB 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. — 

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



