416 ME. MALCOLM BURR ON THE 



EpJiydra lalophila in Illinois. (Packard, Proc. Essex Inst. 



vi. 1869 ; Verrill, Proc. Boston Soc. 1866.) 

 Chironomus oceanicus in Salem Harbour. (Packard, loc. cit.) 

 Chironomus sp. in Utali. (Stansbury, Report on Valley of 



Great Salt Lake of Utah.) 

 Halophilus in Illinois and Salem Harbour. (Packard, loc. 



cit.). 



EXPLANATION OF PLATE 27. 



Fig. I. Group of insects upon the bark of Popidus alba (p. 367). 



a. Larva-cases of Apterona crenulella. b. Bathyscopus pocillus. 

 c. Pentatoma baccarum (?) *. d. Yponomeitta padellus, L. 

 e. Moulted skin of larval insect. 

 2. Larva of Hemerobius sp. 

 S. Larva of Ephydra urmiana. 

 4. Acarid upon Machilis persa (?). 

 * Or some allied species. The identification is that of Mr. C. 0. Waterhouse. 



OETHOPTERA. 

 By Malcolm Burr, E.Z.S., P.E.S. 



The small collection of Ortboptera made by Mr. E. T. GTiinther 

 in North-west Persia contains tweWe species, of whicb one is a 

 new variety of a well-known species. The most interesting 

 capture, perhaps, is the Decticus assimilis Eieb. 



It is unfortunate that they have been preserved in spirit, 

 which has bleached the colours of all, especially of the ffidi- 

 podidae. 



EORFICULABIA. 

 EOBPICTJLA AUEICTJLAEIA, L. 



Seir, N.W. Persia. 2 d , 1 $ • 



The two males represent the variety figured by Eiseher (Orth. 

 Eur. tab. vi. fig. 11 Z) . The Marquis Doria captured the same form 

 in Northern Persia some years ago, and quite recently a similar 

 specimen, undoubtedly British, was exhibited at the South 

 London Natural History Society. It differs from the type in the 

 narrowness of the dilated part of the male forceps above the tooth. 



In the typical form the part of the forceps from base to this 

 tooth is contiguous, the sides of the branches being parallel. In 

 this variety the inner margins of the basal part diverge, making 

 roughly a triangular area between the pygidium and the teeth of 

 the forceps. 



