1912.] tj 



similar variable thoracic, and strouc^, almost seriate, elytral punctua- 

 tion — it is ditticult to discover between them and rubiginosus any 

 difference which, in a form with so wide a known range of variation, 

 can l)e considered as specific. The insect seems equally rare on the 

 Continent, and we have teen unable to obtain a specimen from any 

 Continental student of the group, — while a careful study of the text 

 of Foudras' description* fails to discover any distinct specific character 

 incompatible with the British specimens we have been able to examine. 



Except that the size is If 2 mm. instead of 2-21 mm., that the 

 last five or six joints of the antennae are fuscous, and that the punc- 

 tuation of the thorax is perhaps rather more confluent and rugose — 

 the description given aliove for L. nibujinosiis may be applied to it, 

 and need not be recapitulated. 



(To be continued). 



TELMATOSCOPVS ROTHSCHILDII, A NEW SPECIES OF PSYCHODID 

 DIPTERA POUND IN LONDON. 



BY THE REV. A. E. EATON, M.A., F.E.S. 



One female of this fiy was taken by Hon. N. Charles Rothschild 

 off the trunk of a tree in a retired spot by the Serpentine, in the summer 

 of 1909, and other specimens of each sex in the middle of June, off th§~ 

 same tree, the following year. The illustrations of the acconipauyiug 

 textual figure have been delineated with the aid of a Schroder's prism- 

 eye-piece, from preparations in Canada Balsam of detached details of 

 the fly mounted without pressure, derived from specimens forwarded to 

 me alive or in fluid by their discoverer. 



By means of the details selected, the fly's relationship to two 

 species, previously described, of the genus Telniatoscopus may be 

 demonstrated : T. advena, Etn., captured singly in Somerset, Seaton 

 and Aylesbeare Common, Devon, and near Fort National in Haut- 

 Sebaou, Algeria (1 (^ ex., 2. xi. 1892., Etn.) ; and T. meridi-nialis, a 

 species of wide distribution, occurring in Egypt at Ismailia (Biro), 

 German East Africa, Delagoa Bay, Sierra Leone (Austen), and (per- 

 haps, transported in slave ships) in South America (Burchardt). 



• Fuudnis' types, we .ire f,av(jii to undcr.staiid, are, unhappily, no longer available for 

 examination. 



