The Rearing Technique Of Dastarcus Helophoroides (Coleoptera: Colydiidae)

We had confected three kinds of artificial diets for Dastarcus helophoroides (Fairmaire)larvae,and four kinds of artificial diets for D. helophoroides adults. Comparing different rearing methods, we defined the right method to rear D. helophoroides larvae and adults. The results were shown as follows:1. The artificial diets for D. helophoroides larvae and adults①By changing the amino acid components and contents, we had confected three kinds of artificial diets for D. helophoroides larvae. The result of rearing D. helophoroides larvae by artificial diets showed: the cocooning rate of D. helophoroides larvae fed by dietⅢwas 20%, larvae didn't eat dietⅡ, and the cocooning rate of larvae fed by dietⅠwas only 6.67%; the final body length and weight of D. helophoroides larvae fed by artificial dietⅢwas higher than others. The amino acid components in artificial dietⅢwas determined by the result of analyzing the amino acids components of Anoplophora glabripennis (Motschulsky) larvae, and dietⅢwas the best one for D. helophoroides larvae.②We used silkworm pupa powder, cat food powder, cricket powder, ant powder, freeze-dry yolk powder, yeast, cane sugar, wood powder, benzoic acid, agar-agar and distilled water to confect four kinds of artificial diets for D. helophoroides adults. The result of rearing D. helophoroides adults by artificial diets showed: the effect of diet 1 was the best one and adult insects had the most amount of egg laying which spawn amount to 425.89±209.26 every two days; meanwhile they have least mortality rate.2 Artificial rearing methods for D. helophoroides larvae Thirteen kinds of film which used to enfold artificial diets were failed to rear larvae of D. helophoroides. However, when degrease tampon absorbing artificial diet were used to rear D. helophoroides larvae, they had preference for eating under this condition, and second stage of larvae had a better surviving rate and cocooning rate for pupa. Comparing the rearing by artificial diets to A. glabripennis larvae directly, Cocooning rate of D. helophoroides larvae reared by A. glabripennis larvae was 80.33%, cocooning rate of D. helophoroides larvae reared by fodderⅢwas 20%, but cocooning rate of larvae reared by fodderⅠwas only 6.67%.3 Artificial rearing methods for adults of D. helophoroides Under different illumination, we used four kinds of artificial diets to rear adults of D. helophoroides coming from different source in woodboxes and blocks with a groove each, respectively. When reared in woodboxes and treated with different illumination, adults insects had not produce eggs and there was less difference of mortality rate among different diets. While using blocks containing a groove each, at full dark under 22℃, adults of D. helophoroides laid eggs reared by the four kinds of artificial diets. Adult insects feeding on diets 1 had laid the most amount of eggs and had the least mortality rate.