167 



line dirty whitish, and at the middle segmental folds, just above the spiracles, are 

 6 or 7 pale oblique streaks ; the spiracular line greeu, with a yellowish thread run- 

 ning throughout its length ; dots and spiracles white ; segmental folds yellow, anal 

 points sometimes very pale pink, sometimes pale green. Altogether the full-grown 

 larva (though when first hatched so gaily dressed,) is a much duller looking creature 

 than that oirussata. 



The pupae, with their transparent cases, showing green when new, and growing 

 darker as the moth approaches perfection, as well as the slightly formed cocoons, 

 did not appear to differ. — Ecv. J. Hellins, Exeter. 



Alterations in Nomenclature. Anisotoma ornata, and Tychius hrevicornis. 



Anisotoma lituka, Stephens, Mandib. v., 403 ; id. Man. 104, 829. 



The description of A. ornata given by Fairmaire (Annales de la Sac. Ent. de 

 France, 3me serie, vol. Hi., 1855, Bull. p. 30) accords so exactly with the structure 

 of A. litura, Steph., that I can come to no other conclusion than that the two 

 species are identical , and, if so, that the name ornata must be suppressed. 



The following is the description given (loc. cit.) for A. ornata. 



" Rufo-testacea, nitidior, ovalis, parum convexa, antennarum clav&, articulo 

 " secundo excepto, nigricante : prothorace dense sed tenuissime punctato, iasi fere 

 *' recta, angulis posticis subrectis, fere obtusis ; elytris punctato-substriatis, interstitiis 

 " indistincte punctulatis ; maris femoribus posticis muticis, tibiis posticis valdi 

 " arcuatis ; feminm tibiis posticis fere rectis, vix arcuatis. Var., elytrorum suturd 

 " margineque externa brunneis, L. 21-8 miU." 



Fairmaire seems to have had but a very Umited number of specimens, and 

 yet considers the form with dark suture and outer margins to the elytra as a 

 variety of the immaculate condition, which he makes the type. I have recently 

 taken five specimens of the unicolorous form (of both sexes), at Mickleham, by 

 sweeping among dead leaves ; and have found upwards of a dozen in Dr. Power's 

 collection, mixed with A. calcarata (which it greatly resembles, superficially), and 

 also one among some unexamined Anisotomidce from Cumberland, sent to me by 



Mr. T. J. Bold. I find also that this pale form is the "13 sp ?" of Mr. 



Waterhouse's catalogue. The latter gentleman, on seeing further examples, is now 

 of opinion that this insect cannot be separated specifically from the dark form, 

 viz., A. litura; especially as the light condition occurs in the north of England, 

 from whence also he now possesses intermediate states of colour ; e.g., specimens 

 with the suture alone brownish, with the suture and margins darkened, and with 

 the thorax black, and the suture and margins broadly black. The last form seems 

 to be the type of the species. All the southern specimens I have seen (upwards 

 of twenty in number), although structurally identical with A. litura, exhibit no 

 tracing of dark colouration. 



It is somewhat curious that both authors should have named the species from 

 its dark coloured form. Stephens, I think, was right in so doing, though he 

 appears not to have known the palo condition. Fairmaire, on the contrary, 

 describes an immaculate light coloured insect, and names the species from a form 

 of which he considers it to he a \'ariety. 



