652 EXPERIMENT STATION RECORD. 



An annotated list of the literature on insects and disease for the year 

 1912, 11. W. DOANE {Jour. Econ. Ent., 6 (WIS), No. 4, pp. 366-385) .—An annual 

 snnmjary in continuation of that previously noted (E. S. R., 28, p. 155). 



Tenth annual report of the state entomologist of Montana, R. A. Cooley 

 (Montana 8 la. Bui. 92, pp. 49-67, figs. 2). — This report consists of brief accounts 

 of the occurrence of insect pests and the spotted teyev tick in Moutau;i in 

 1912. Several of the couimon pests are said to have been more than normally 

 abundant. In the lower Yellowstone Valley tb.ere was an outbreak of grass- 

 hoppers; in the sugar-beet district the sugar beet webworm was alarmingly 

 abundant; while over the entire State the Colorado potato beetle, the apple 

 aphis, and cutworms occurred in more than usual numbers. 



Report of the entomologist, C. W. Hookee {Porto Rico Sta. Rpt. 1912, pp. 

 S4-38). — The occurrence of the more important insect pests, including local out- 

 breaks of the cabbfjge worm {Pontia rnonuste), the bean leaf roller, bean leaf 

 beetle {Cerotoma trif areata) , corn earworm, fall army worm, cucumber beetle 

 {Diahrotica inttata), D. graminea, Bostrychus monachus, and Agati grandiflora, 

 is reported upon. 



Of the insect enemies of coffee mention is made of an ant {Myrmelachista 

 ambigim rwmulorum) as being the most troublesome pest. This ant lives mostly 

 in twigs and under pieces of loose bark on the trunk of the guama, which is 

 grown as a shade tree, and in dead wood on the coffee. Two coccids, a mealy 

 bug (Pseudococcus citri) and a pink scale, are attended by it. The coccids are 

 carried by the ants into canals eaten out along the pith of the smaller new 

 growth which will bear the next season's fruir. The growth is weakened to 

 such an extent that when bent down by the pickers at the next harvest it breaks 

 easily and much fruit is lost, and the pickers are considerably annoyed by the 

 ants. A native ant is said to drive this coffee ant awa.y and occupy its nests 

 but because of its sting pickers consider it worse than the coffee ant. The 

 coffee leaf miner (Leucoptera coffeella), though parasitized by two chalcidids, 

 is abundant throughout the island, no effective treatment having been dis- 

 covered. A lepidopterous borer (Psychonotua sp.), previously reported by 

 Tower in 1908 (E. S. R., 22, p. 252) as boring in orange, citron, rose apple, and 

 sweet almond, was the source of considerable injury. The coffee weevils are 

 .«aid to be confined to certain hill districts where they cause considerable injury. 

 Til the western part of the island a tachinid (Cryptomeigenia sp.) parasitizes 

 the May beetles and in some cases is thought to be an effective check. 



Under the heading of fruit flies mention is made of a species of Anastrepha. 

 closely related to A. acidusa and thought to be A. fraterculus, which breeds so 

 commonly in one of the native mangoes that it is difficult to obtain sound fruit 

 from some trees. In addition it attacks some of the introduced Indian species, 

 as the Cambodiana, and also guava, jobo amariUo, and jobo de la India fruit. 

 The lechosa fruit fly {Toxotrypana curvicauda) is said to be abundant in 

 Mayaguez. The eggs are laid well below the surface of the green fruit; 2 to 15 

 or more larvse mature within the fruit, and when it drops pupate 1 or 2 in. 

 below the surface of the ground immediately below the fruit. Adults emerge in 

 17 to 21 days, and eggs for another brood are soon laid. The larvfe in jobo 

 are commonly attacked by 2 hymenopterous parasites, Opius (Utetes) anas- 

 trephce n. sp. and Ganaspis n. sp. 



Directions are given for the propagation of the Japanese beetle fungus 

 MetarrMzium. anisoplm, which was introduced by the station some time ago 

 from Hawaii. A colony of lady beetles (Cryptolcemus montrouzieri) was dis- 

 tributed to sugar and pineapple growers as an aid in controlling the mealy 

 bug (P. citri), and a colony of aphis-feeding lady beetles {Hippodamia con- 



