256 EXPERIMENT STATION EECOED. 



1,066 clays of adult time, resulted. Details relating to the occurrence of and 

 loss of time from malaria are presented in tabular form. 



While three species of Anopheles, namely. Anopheles quadrimaculatus, A. 

 pumttDennis, and A. crucians, occur in the vicinity of Mound, La., the first 

 mentioned is by far the most abundant and is apparently the species concerned 

 as the conveyor of malaria in that region. Observations on breeding places show 

 that A. quadrimaculatus is partially domestic in its breeding habits. 



The introduction of a tachinid parasite of the sugar cane weevil borer in 

 Hawaii, O. H. Swezey (Jour. Econ. Ent., 7 (WW, No. 6, pp. 455-451).— A de- 

 scription of the manner in which Ceromasia sphenophori was introduced into 

 Hawaii from British New Guinea. A reference to its introduction into Fiji 

 by lUiug^-orth has previously been noted (E. S. R., 32, p. 350). 



This tachinid was first discovered at Amboina, in the East Indies in 1908, 

 by Muir, where it parasitizes a weevil infesting sago palm. An attempt to in- 

 troduce it into Hawaii from that locality failed on account of the relay stages 

 of the journey having been too long. It was later discovered in British New 

 Guinea destroying a high percentage of the borers in sugar cane. The first 

 attempt to introduce the pest from New Guinea into Hawaii failed on account 

 of the illness of Mr. Muir but a second attempt later was successful, living 

 parasites having reached Honolulu in August, 1910. The author states that at 

 the time of writing after a period of three years the parasites are established 

 almost entirely throughout the sugar cane districts of the Hawaiian Islands, 

 In plantations where the borers previously caused the greatest damage to cane, 

 little damage is now occasioned. 



On the original habitat of Stomoxys calcitrans, F. Muir (Jour. Econ, Ent., 

 7 {1914), No. 6, pp. 459, 460).— The author believes that the stable fly originated 

 in Africa. 



Susceptibility of Pollenia rudis to nicotin, P. J. Paerott {Jour. Econ. Ent., 

 7 {1914), No. 6, p. 487). — A nicotin preparation con.sisting of 90 per cent nicotin 

 and 10 per cent water applied by means of a small wad of cotton to the sills 

 at the base of window panes in laboratories at the New York State Station, 

 where the " cluster fly " had been numerous and annoying, caused the death 

 of a large percentage of the insects within a short period of time. 



The probable best method of rearing certain scarabaeid larvae, A. A. 

 GiRAULT {Jour. Econ. Ent., 7 {1914), No. 6, pp. 4-'i5-447)- — A description of the 

 author's method, developed at the Bureau of Sugar Experiment Stations in 

 Queensland. 



Agrilus politus infesting roses, H. B. Weiss {Jour. Econ. Ent., 7 {1914), 

 No. 6, pp. 438-440)- — During the course of nursery-inspection work in northern 

 New Jersey attention was called to the death of standard roses, the stems of 

 which were swollen somewhat at difl:erent points. The buprestid beetles which 

 emerged apparently represent the species A. politus, previously recorded as 

 reared only from willow. 



A new pest of cane in Fiji (Sphenophorus nebulosus), J. F. Illingwobth 

 (Jour. Econ. Ent., 7 {1914), No. 6, pp. 4.}-J, ^//5).— This article deals with a small 

 beetle borer resembling the ordinary cane borer {RhaMocnemis obscurus). 

 It is apparently S. nebulosus, which, though exceedingly prolific, has as yet 

 done little damage to sound cane in Fiji. 



Some ccccinellid statistics, H. E. Ewing {Jour. Econ. Ent., 7 {1914), No. 6, 

 pp. 440-443, fi(f- !)■ — This article includes a table which shows the relative 

 abundance of difi'erent species of coccinellids in five different situations, namely, 

 on hops, thistles, lamb's quarters, kale, and vetch, and a diagram showing the 

 relative numbers, expressed in percentage terms, of the total population of 

 different species found in each patch. 



