278 [December, 



C. emeryi Silv. Pronotal niacrochaetae much acs in emeryi, but with only 

 3-4 points: normal microchaetae moderately long and pointed. Abdominal 

 termites without submedian niacrochaetae ; segments 8 and 9 with lateral, and 

 7-9 with posterior, siiblateral macrochaetae present, Cerci 8-10 segmented, 

 similar to those in C. emeryi, but with the upwardly directed macrochaetae 

 broadly bifurcated at apex, and, in the basal cereal joints, usually with a 

 furtlier bifurcation of the main arm in addition to two or three subsidiary 

 branches or points below the secondary arm. Antennae 17-20-jointed (I have 

 only seen young examples with perfect antennae, my mature specimens being 

 mutilated in this respect). Apical seta of stylus as in C. staphylinus. 



Hah. Torquay and neighbourhood, October 1918. 



This species can only be compared with. C. emeryi, from which it 

 differs sharply in the arrangement of the abdominal macrochaetae ; in 

 the structure of the macrochaetae of the pronotum, abdomen, and cerci, 

 and in the type of st^dus. 



Kydal Mount, Blaydon-on-Tyne. 

 October 26th, 1918. 



EORMOPJEZA OBLITERATA Zetterstedt ASSOCIATED WITH 

 MELANOPHILA ACUMINATA De G. ON BURNING PINES IN BERKSHIRE. 



BY J. E. COLLIN, F.E.S. 



Mr. W. E. Sharp in his paper on " MelanopJiila acuminata De Gr. 

 in Berkshire" in the last number of this Magazine (p. 244), referred to 

 a Dipteron as being the only other living creature besides the beetle, 

 capable of living in, and apj^arently enjoying, the very high temperature 

 caused by the immediate proximity of burning peat and glowing pine- 

 stumps. Two specimens of this fly, both of them males, were sent to 

 me for identification, and I was surprised and delighted to find that they 

 were representatives of the very little known Empid genus Hormopeza. 



This genus was erected by Zetterstedt in 1840 for the new species 

 ohliterata from Lapland, and there is still no other known Palaearctic 

 species. It has been recorded from Finland by Bonsdorf and Fre}'-, 

 while the " Novum Empidarum genus " described and figured (but not 

 named) by Becker in 1900 in his '* Beitrage zur Dipteren Fauna 

 Siberiens " (Acta Soc. Sc. Fenn. xxvi. No. 9) from a single damaged 

 male specimen taken by Sahlberg on the Island of Nikander, Avas 

 undoubtedly Hormopeza ohliterata. I know of no other record of its 

 occurrence. 



The genus may be recognised by its venation coupled with the 

 shape of the antennae. 



