95 



DupoRT (L.). Rapport sur les Recherches poursuivies a la Station 

 Entomologique de Cho-Ganh. — Supplement to Bull. 128, Chambre 

 d'Agric. Tonkin and Nord-Annam, Hanoi, no. 9, May-August 

 1920, 7 pp. [Received 29th December 1920.] 



Investigations on the insect parasites of Xylotrechiis qtiadripes 

 (coffee borer) have been continued and show that the Braconid 

 parasite previously discussed [R.A.E., A, viii, 220] is the only species 

 sulficiently vigorous and prolific to be of any great value in combating 

 this beetle in the field. The Bethylid found attacking X. quadripes 

 has been identified as Sclerodermus castaneus, Kieff., and this parasite 

 has also been found in company with Chlorophorus annularis in dry 

 bamboo. 



Schumacher (F.). Beitrage zur Kenntnis der Hemipterenfauna 

 Mazedoniens. [Contributions to the Knowledge of the Hemiptcra 

 of Macedonia.] — Sitzungsbey. Ges. Naturforsch. Freunde, Berlin, 

 March- April and October 1918, nos. 3-4 and 8, 15th June and 

 10th December 1918, pp. 82-98 and 322-325. 



In all, 199 species of Rhynchota collected in Macedonia are recorded. 



They include : — a Reduviid, Ploiaria domestica, Scop., found chiefly 

 in houses, where it feeds on small flies, Culicids, etc. ; the Coccids, 

 Lencaspis riccae, Targ., and Lepidosaphes idmi, L. ; the gall-making 

 Aphids, Pemphigus utrictdarius. Pass., P. semilunarius , Pass., and 

 P. derbesi, Licht., on Pistacia terebinthus ; P. pallidus Hal., Eriosoma 

 (Schizonetira) lanuginosum, Hausm., Tetraneura ulmi, de G., and 

 T. rubra, Licht., on Ulmus sp. ; Myztis sp. on Prunus domestica ; a 

 Capsid, Poeciloscytus cognatus, Fieb., on Salsola kali; Lygus pratensis, 

 L. ; and a Cicadid, Tettigia orni, L., on plane trees. 



Schumacher (F.). Entomologisches aus dem Botanischen Garten zu 

 Berlin-Dahlem. i. Orthezia insignis, Douglas. — Sitzungsber. Ges. 

 Naturforsch. Freunde, Berlin, November-December 1918, no. 9-10, 

 28th February 1919, pp. 379-384. 



Orthezia insignis, Dougl., is recorded from 32 different plants in 

 greenhouses at the Botanical Gardens, Berlin. The danger of its further 

 spread and the necessity for strict vigilance against this scale are 

 emphasised. 0. insignis does not apparently occur in the open in 

 Germany owing to climatic conditions, but in greenhouses reproduction 

 continues uninterruptedly throughout the year. A powerful spray of 

 water or of petroleum emulsion is recommended against it. No parasites 

 of it have so far been discovered in Germany. Its occurrence in other 

 countries is reviewed. 



Schumacher (F.). Entomologisches aus dem Botanischen Garten 

 Berlin-Dahlem. iii. Gymnaspis aechmeae, Newst. — Sitzungsber. 



Ges. Naturforsch. Freunde, Berlin, May-June 1919, no. 5-6, 

 6th October 1919, pp. 250-254. 



Gymnaspis aechmeae, Newst., occurs abundantly on numerous plants 

 of the order of Bromcliaceae in the Botanical Gardens in Berhn. It 

 causes severe damage to pineapple plants. This scale has become 

 firmly established, and is also found in the orchid houses. Apparently 

 the only means of reducing its ravages is to transfer infested plants 

 into the open or into cooler houses, as it is only able to reproduce at a 

 high temperature. 



