52 



destructive to the young growth. The hirvae make a small mine 

 between the veins of the young leaves and then fold the tip or the sides 

 of the leaf downwards. The cocoon is spun in a fold on the leaf. 

 This species resembles G. violacella, Clem., and G. burserella, Busck, 

 but differs in the characters of the male genitalia. 



Stuckey (H. p.) & HiGGiNS (B. B.). Spraying Peaches. — Georgia 



Expt. Sta., Experiment, Bull. 135, December 1919, pp. 91-101. 



LReceived 1st December 1920.] 



Formulae and directions for the best sprays to use under Georgia 



conditions on peach-trees against both fungus diseases and insect 



pests are given. For the peach-tree borer [Aegeria exitiosa] the soil 



is raked awa}- from the trees to the depth of an inch or two 



during the latter half of July ; asphaltum is then applied to the base 



of the trees, extending six or eight inches above the ground. The soil 



is then replaced. This prevents oviposition, which normally occurs 



during August and early September. If any infestation follows this 



treatment, the larvae should be extracted in November. 



A schedule isgiven for summer spraying of peaches, and the necessary 

 equipment is described, 



KiRBY (A. H.). Plant Pathology. — Nigeria : Ann. Rept. Dept. Agric, 

 Southern Provinces for 1919, Lagos, 1920, pp. 17-18. [Received 

 2nd December 1920.] 



As a result of a severe infestation of maize by Calatidra oryzae, 

 Tribolium castanenm and Tenehroides mauretanicus, experiments with 

 carbon bisulphide as a fumigant were made. After fumigating shelled 

 maize for 24 hours with 5 lb. of fumigant to 1,000 cu. ft., all the 

 beetles were dead. The maize was then stored in sacks in native 

 pots with well-fitting wooden covers, a layer of wood ash being 

 placed on the maize before adjusting the co\^ers. The pots were then 

 sealed with mud from termite nests. Maize thus stored proved insect- 

 free when inspected after one month. 



The difficulty experienced in estabhshing the native indigo is due to 

 continued insect attack. The pests involved include :■ — the large 

 grasshopper Zonocerns variegatus, leaf-eating beetles belonging chiefly 

 to the genera Syagrns and Crioceris, and Arctiid caterpillars. 



Watson (J. R.). New Thysanoptera from Florida, vii.^ — Florida 

 Entom., Gainesville, iv, no. 2, September 1920, pp. 18-23, 27-30. 

 [Received 6th December 1920.] 



The new species described include : — Haplothrips gracilis, onironweed 

 (Vernonia) ; Hoplandrothrips quercitspiimilae, and Myrmecothrips 

 querci, gen. ct sp. n., on Querctis pwnila ; Chirothrips floridenis, on 

 Bermuda grass ; Haplothrips cassiac, on blossoms of Cassia ; H. fiinki, 

 on Qtiercus falcata ; H. querci, on scrub oak ; and H. tiliae, on 

 basswood [Tilia americana). 



Keys are given to the North American species of Hoplandrothrips 

 and Chirothrips and also to the characters of the genera Cephalothrips, 

 Dolichothrips and Myrmecothrips. 



Wilson (H. F.) & \'ickery (R. A). A Species List of the Aphididae 



of the World and their recorded Food Plants. — Trans. Wisconsin 



Acad. Sci. Arts and Letters, Madison, xix, pt. 1, November 1918, 



pp. 22-355. [Received 7th December 1920.] 



This work is divided into two parts, the first being a species list of 



the Aphididae of the world with their recorded food-plants, the second 



