1S76.) 1,S7 



Note on the halitat of Dicranoneura citrinella.— In September hist I again 

 found this species common in the gravel-pit at Blackheath, where I originally took 

 it, and traced it without a doubt to Teucriuiii scorodonia. — J. W. Douglas, ]jce : 

 December 6t/i, 1S75. 



On the metamorphoses of Meloe cicalricosiis and Cantharis vesicatoria. — 

 Sr. Lichtenstein, in a letter dated 14th August, communicated to the Societe entomo- 

 logique de Belgique, says that he was unable to give the continuation of the history 

 of Meloe cicatricosus, the larva having died in its second form without changing ita 

 skin (vide ante p. 136). But he goes on to say : — 



" On the other hand I have had the pleasure, this morning, to obtain the second 

 form of the larva of Cantharis vesicatoria by means almost the same as those em- 

 ployed with the Meloe. In this instance the " triungulins " were not yellow like 

 those of Meloe, but black with a white cincture (the last two thoracic annulations, 

 and the first ventral segment, are white). The second larva form is soft and white, 

 hexapod, and very like that of Meloe." — [From the Compte-Rendu de la Societe 

 entomologique de Belgique, 2nd October, 1875]. 



" Ralesus d iff it at tis."— In the months of September (end), October, and Novem- 

 ber (beginning), large Trichopterous insects of rather pallid (testaceous) colour, with 

 somewhat striated anterior-wings, are not uncommon in the vicinity of streams in 

 Britain, and even in the neighbourliood of London they may be seen on the gas- 

 lamps. These have been commonly known by the name at the head of this note, and 

 under this name they have been noticed by all the most modern writers on Tri- 

 choptera (including myself), without the least idea that more than one species was 

 included under the term. This hallucination must come to an end. Having been 

 recently engaged upon the genus Ilalesus for my "Revision and Synopsis of European 

 Trichoptera," a somewhat disagreeable fact has forced itself upon me, viz., that three 

 thoroughly distinct species are included under the name ; and, moreover, that two 

 of them occur in Britain, and are probably equally common. Which may be con- 

 sidered the real dijitatus depends upon information to be received from Austria, for 

 the name is one of Schrank's, in his " Enumeratio," and thus should naturally bo 

 reserved for the most common Austrian form. Any way it is satisfactory to know 

 that (according to evidence furnished by types) no newly coined names will 

 (apparently) be required. Reserving the application of the term diyitatus for 

 the moment : — 

 No. 1 is radiatus, (Leach) Curtis, = diffitatu.t, Steph. (j^arlim), =- inlerpunclatu.1, 



Zctt. 

 No. 2 is tensellatus, Rambur (aeeurding to type), — dijilatus, Erauer (?), and Walser 



(according to type). 

 No. 3 is hieroglyphicus, Curtis, = diffitatus, Steph. (parlim). 



No8. 1 and 2 extremely resemble each other in general appearance, and are to bo 

 (apparently) separated only by the anal characters. Li radiatus (wliieh is possibly 

 the true diffitatus) the inferior appendages of the (J are blunt, black, and broadly 

 sinuate at the apex: it is the most common northern species. In tessellat us the 

 inferior appendages are long, somewhat lanceolate, slightly curved, aeuto ; it appears 

 to be Central European (not occurring in Britain). Jlierofflyphicus is generally 



