308 Mr. B. F. Cummings on the First Ma.villce 



As far as one can ascertain, tliis insect belongs to the sub- 

 family Triozinpe, F. Loew. Most unfortunately, liowever, 

 the examples are all immature, the majority being larvae, 

 while the pupse associated with them in the interior of the 

 gall are relatively scarce. In the absence of adults it would 

 be unwise to describe the insect as a new and undescribed 

 species, but, so far as one can gather, the immense gall produced 

 by the hordes of Psyllids wiiich were found in its int^-ior is 

 not only strikingly characteristic but much larger than that 

 of any other known gall-producing Psyllid with which we 

 are acquainted. 



EXPLANATION OF PLATE VIL 

 Giant Psjllid Gall from Syria, x 1. 



XXXy. — Apropos of the Fust Ma.villce in the Genus 

 Dipseudopsis, Walk., Trichvptera. By BruCE F. CummingS. 



(Publislied by permission of the Trustees of the British Museum.) 



I AM indebted to Mr. Martin E. Mosely, of London, for 

 the opportunity of examining and describing the peculiar 

 mouth-trophi of Dipseudopsis^ Walk., a genus of Trichoptera, 

 a specimen of which he was good enough to put into my 

 hands, with the remark that the liead appendages seemed 

 to be of a very abnormal kind. 



The outer lobe of the first pair of maxillre proved to be 

 extremely long and pendulous, recalling the proboscis in 

 some Lepidoptera, such as Zeuzera, where the two elements 

 remain separate and hang down loosely from the mouth as 

 two elongated lobes. 



Geo. Ulmer* has already remarked upon the mouth-parts 

 of Dipseudo2JSis, but as his description does not pretend to be 

 more than summary, the following further details are given 

 in the belief that the structures merit a more extended 

 notice, especially as Ulmer does not draw attention to the 

 likeness of these pendulous maxillae to those of the 

 Lepidoptera. 



The labial palpi are 3-Jolnted, almost as long as the 

 tubular outer lobes of the first maxillse. The first joint 

 is the longest, trumpet-shaped, the second short, and the 



* Zool. Anz. 1905, Bd. xxviii. p. 56. 



I 



