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No. 37. COLEOPHORA OCHREA. 

 Plate XIII. Fig. 1. 



How noticeable. — Larva. 

 If, in the months of October and 

 May, we examine plants of Heli- 

 anthemiim vulgare growing in dry, 

 rocky places, we may probably notice 

 some of the leaves have greenish- 

 yellow blotches, and attached to these 

 leaves we may find a downy-looking 

 ochreous case, nearly an inch in 

 length ; this case contains the larva 

 of Coleopkora ochrea. 



How noticeable.— Imago. 

 If, in the month of July, we use 

 the sweeping-net amongst the He- 

 llanthemum in such a locality as above 

 mentioned, we may possibly obtain 

 specimens of a large ochreous Co- 

 leophora, of which the anterior wings 

 are ornamented with several silvery 

 lines, and the white antennae have 

 the basal half thickened with Ions 

 ochreous scales ; these are the perfect 

 insects of Culeophora ochrea. 



Mode of Life. 

 The larva feeds on the leaves of 

 Helianthemum vulgare ; it commences 

 feeding in the autumn, and causes 

 great yellowish-green blotches in the 

 leaves, and with pieces of mined leaf 

 constructs for itself a case, which is 

 whitish-ochreousorgreyish-ochreous, 

 nearly cylindrical, rather stout; and 

 the case of an adult larva is remark- 

 able for its length, varying from eight 

 to nearly ten lines in length, being by 



La Chenille.— Comment la trouver. 

 En examinant des pieds de V Heli- 

 anthemum vulgare aux mois d'Octobre 

 et de Mai, surtout aux endroits sees, 

 rocailleux, on pourra en remarquer 

 quelques feuiiles tachees d'un jaune- 

 verdatre, et trouver attache a ces 

 memes feuiiles un fourreau ochrace, 

 duveteux, de pres d'un pouce de 

 longueur ; ce fourreau contient la 

 chenille de la Coleophora ochrea, 



Le Papillon.— Comment le trouver. 

 Si nous fauchons, au mois de 

 Juillet, parmi Y Helianthemum aux 

 endroits rocailleux, nous reussirons 

 peut-^tre a obtenir des individus 

 d'une grande Coleophora ochracee, 

 dont les ailes anterieures sont orn6es 

 de plusieurs lignes argentees, et dont 

 les antennes blanches ont la moitie 

 basilaire epaissie d'ecailles longues, 

 ochracees ; ce sont les papillons de 

 la Coleophora ochrea. 



Maniere de vivre. 

 La chenille mange les feuiiles de 

 V Helianthemum vulgare; elle com- 

 mence a manger en automne et 

 creuse de grandes plaques d'un vert- 

 jaunatre dans les feuiiles ; elle se 

 construit de morceaux de la feuille 

 minee un fourreau, qui est d'un 

 ochrace - blanchitre ou -grisatre, 

 presque cylindrique, assez gros, et 

 celui d'une chenille adulte est re- 

 marquable par sa longueur, atteignant 



