184 PROCEEDINGS OF THE 



found that among the more recent contributions of Dr F. Loew 

 is a detailed description of it (1. c, 1875, p. 26). Upon 

 collating his description with my own, I find an exact 

 agreement in all except the following points : — He states the 

 number of antennal joints as 19; in my description I note 

 18, which a careful re-examination of my dried specimens bears 

 out. There may, as in some other species, be a slight variability 

 in the number. In my notes I describe the apical tarsi of the 

 legs as yellow ;* Dr Loew is silent on this point, simply stating, 

 " Beine . . . fahlbraun." 



The rearing of the male places this species definitely into the 

 genus Hormomyia, where it was doubtfully collocated by Schiner 

 (Fauna aust. Dipt. ii.,p. 380). The compressed and sunken head, 

 arched and laterally compressed thorax, and the long abdomen, 

 taken in connection with the characters of the wings and 

 antennae, leave no room for doubt ; these characters, as Dr Loew 

 states, being not nearly so marked in the female. For a minute 

 account of these points, I would refer you to Dr Loew's article 

 (1. c, supra). In the same Transactions (1874, Taf. ii., fig. 3) 

 is an excellent figure of the gall in its mature form. 



Galls of Unknown Species. 



r 



I conclude this paper with descriptions of two galls, whose 

 makers, so far, I have not succeeded in rearing to the perfect 

 state. 



Lychnis diurna, Sibth. — The gall consists in the calyx becoming 

 more or less inflated at the base. Sometimes the calyx never 

 opens, at others the petals project more or less. It becomes more 

 or less tinged, especially towards the apex, with pink, and the 

 calyx-ribs are usually picked out with darker pink. 



A number of larvae inhabit the inflation between calyx and 

 petal. They are barely a line and a half long, shining, and vary 

 in colour from white to bright orange-yellow. 



This malformation is not uncommon at Kenmuir Bank and near 

 Milngavie during the autumn months. 



Mr C. G. Barrett (Ent. Mo. Mag. viii., p. 205), in a note on the 

 earlier stages of a hactle, Ilyperaj^olygoni, — the larvae of which occur 

 in the shoots of Lychnis vespertina, which are prevented from 



* In the dried insect tliey are conspicuously pale yello\vish-wliite. 



