854 EXPERIMENT STATION RECORD. 



Trogoderma stern ale has been found in sample seeds, in linseed, castor 

 beans, silkworm cocoons, and in red-clover seed. In the jars of cocoons 

 it was found associated with Trogoderma tarsale and a few individuals 

 of Attagenus piceus. 



Anthrenus verbasei (pp. 22, 23).— To the two instances' in which this 

 species has been noted as attackiug vegetable substances the author 

 adds that the species has been found in middlings, in spoiled flour, in 

 peanuts, and in meal, flour, and cakes prepared from them, and from 

 peanut-oil cake, in seed wheat, and in cayenne pepper. Experiments 

 showed that they will make themselves at home in fresh flour. The 

 change from the natural animal-feeding habit to a vegetable one is 

 attributed to altered environments. 



Weevils that affect the seed of the coivpea (pp. 24-29). — The author, here 

 considers Bruchus ehinensis and B. quadrimaculatus, which he com- 

 pares, and in both cases notes the records of damages, distribution, 

 and development, and, in the case of B. ehinensis, the natural enemies. 



Development of the common bean weevil (pp. 20, 30). — From the 

 author's studies of this insect (Bruchus obtectus), it appears that 

 the egg stage lasts from 5 to 20, the larval stage from 11 to 12, the 

 pupal stage from 5 to 18, and the entire life cycle from 21 to 80 days. 

 The development is much affected by temperature. 



A little-known grain weevil (Caulophilus latinasus) (pp. 30, 31). — This 

 insect was collected at the Atlanta Exposition, where it was found liv- 

 ing in Indian corn, Spanish peas, or chick peas, from Mexico. This 

 case appears to be the only recorded instance of its occurrence in 

 either stored cereals or legumes, but it has been found at Kingston, 

 Jamaica, in ginger. 



On the occurrence of the grain moth ( Tinea granella) in America, 

 (pp. 31-3-")). — This wolf, or little grain moth, of Europe, is noted as 

 occurring rarely in this country. The fact is pointed out that Plodia 

 interpunctella affects grain in much the same manner. It is thought 

 very likely that many of the leading cases of damage attributed to T. 

 granella are due in reality to Plodia interpunctella. According to recent 

 reports, T. granella has been found in stored wheat from California and 

 bred from larva' taken from a sack of corn meal from San Jose. It has 

 been found by 7 station entomologists in as many States. The species 

 likely to be confused with T. granella are T. pali, T. spp., T. (Scardia) 

 cloacella, and T. defectella. Of the unnamed species one was found in 

 breeding T. pali, the other in breeding T, cloacella. T.pali was fouud 

 in Yucca pods from Mexico. The question of the presence in America 

 of T. granella is thought to rest upon rather insecure footing. The cases 

 recorded are supposed to be instances of accidental introduction. 



An invasion of the coffee bean weevil (pp. 36-38). — Specimens of this 

 weevil (Arcecerus fasciculatus) were found in dried apples in Washing- 

 ton. They had been introduced in Java coffee. The beetle is figured 

 and described. The species is also noted as feeding on seed pods of 



1 Insect Lii'e, 1, p. 32; Field and Forest, 2 {1611), p. 184. 



