50 



RicARTw (G.). New Species of S. African Tabanidae (Diptera). — 



Ann. S. African Miis., London, xvii, no. 6, 30th December 1920, 

 pp. 527-530. 



Metoponaplos, gen. n., is erected for Pangonia parva, Wlk., with 

 which P. dirccta. Wlk., appears to be identical. It is redescribed from 

 the Cape. M . nigricans, sp. n., from Cape Colony, Silvius callosus, 

 sp. n., from Natal and 5. hirsuius, sp. n., from the Cape are also 

 described. 



Howard i\.. O.). Report of the Entomologist. — U.S. Dcpt. Agric, 

 Bur. Ent., Washington, D.C., 7th September 1920, pp. 28-31. 



Screw worms [CocJiliomvia macellaria'] are estimated to cause an 

 annual loss of about /800,000 in the United States, and another 

 heavy loss is due to wool-maggots of sheep. Remedial measures that 

 are being tried consist of burning of carcasses, trapping and poisoning 

 of ilies, modified range practices for prevention of attack, and the 

 development of a satisfactory larvicide and repellent for use on wounds. 

 A useful bait for blow-flies is gut slime, a product of meat-packing 

 houses, and it has been found that this can be dried and concentrated 

 for distribution. Other pests of animals dealt with are horseflies, ox 

 warbles [Hypoderma], and poultry parasites, including a mite Lipo- 

 nyssus sylviarum, which has not previously been known as a poultry 

 pest. A study has been made of insect carriers of hog cholera, the 

 house-fly [Musca domestica] and stable-fly [Stonioxys calcitrans] both 

 being implicated. Studies on the insects affecting the health of man 

 were largely concerned with anti-Anoplieline work, and with house- 

 flies. .Some experiments were carried out with substances for con- 

 trolling insects breeding in human excreta ; while these are not 

 completed, great promise has been shown by potassium cyanide 

 solution, sodium arsenate, and a pine-tar product acid. 



Watson (J. R.). Controlling Poultry Lice. — Florida Agric. Expt. 

 Sta., Gainesville. Press Bull. 315, 13th December 1919, 2 pp. 

 [Received 7th January 1921.] 



The remedies here recommended against poultry lice are sodium 

 fluoride powder, mercurial ointment and vaseline, and a powder 

 made by mixing two parts gasolene and one part carbolic acid with 

 plaster of paris. 



DvAR (H. G.). The Aedcs of the Mountains of California and Oregon. 



— ■ Insecutor Inscitiae Menstnius, Washington, B.C., viii, no. 

 10-12, October-December 1920, pp. 165-173. 



Further observations are given on the peculiar mosquito fauna 

 of the Calif ornian mountains. To the species already noticed [R. A.E., 

 B, V, 5 ; vi, 48] a new species or variety, Aedcs masamae, is added. 

 No males were obtained, so that its exact position cannot be stated. 



DvAR (H. G.). A new Cidex from Panama. — Insecutor Inscitiae 

 Menstruns, Washington, D.C., viii, no. 10-12, October-December 

 1920, pp. 173-174. 



Cidex (Choeroporpa) psathariis. sp. n., is described from two males 

 taken on screens at Colon. 



