99 



corpuscles, including gametes, be retained in the stomach, the number 

 of gametes available for infecting the mosquito is smaller when the 

 stomach is only just filled, and greater when the feeding is kept up 

 for some time, owing to the resultant concentration of the blood. 

 Until recently, A. ludlowi in the Dutch East Indies was only known 

 as a coast species inhabiting the sea and brackish-water zone. It has 

 since been found in numbers in valleys in the interior of Sumatra, 

 at altitudes ranging from about 700 feet upwards. For breeding 

 places on the coast A. ludlowi requires water containing salt, even 

 if it be present in such small quantity as to be imperceptible to the 

 taste. On steep coasts the breeding-places are therefore near the 

 shore. In the interior of Sumatra the fish-ponds are almost the only 

 breeding-places. These ponds are usually 3-4 feet in depth. If 

 deprived of these, it might adapt itself to rice-fields, where breeding 

 does occasionally take place at present. The development of the 

 larvae of A. ludlowi is almost entirely confined to waters containing 

 algae. On the east coast of Sumatra the littoral zone is infested 

 with A. ludlowi, but the interior is free. In the course of an examina- 

 tion of seven fish-ponds in the interior only A. rossi indefinitus was 

 found. The absence of algae in these ponds may be due to their non- 

 introduction or to the conditions being unsuitable. In the latter 

 case malaria, so far as it is transmitted by A. ludlowi, would remain 

 absent from such districts. 



ViLLENEUVE (J.). Deuxi'eme Note sur les N^matoceres vuln^rants 

 (Dipt.) (Especes francaises). [Second Note on some Biting 

 Nematocera (Dipt.) (French Species).] — Bull. Soc. Entom. France, 

 Paris, 1919, no. 2, 22nd January 1919, pp. 54-60. 



In continuation of a previous list [see this Review, Ser. B, vi, p. 113] 

 the following mosquitos, etc., are recorded from France : Theobaldia 

 (Culex) annulata, Schr., T. longiareolata, Macq. (C spathipalpis, Rond.), 

 a Mediterranean species, Taeniorhynchus {C .) ricliiardii, Fie, Theobaldia 

 {C.) morsitans, Theo., Cidex hortensis, Fie, found in houses through- 

 out France until December and also occurring in Algeria, C. pyreruiicus, 

 Brolemann, C. pipiens, L., very common both in France and Algeria, 

 Ochlerotatus maculatus, Meig. {C. cantans, Meig.), 0. (C) vexans, Meig., 

 C. punctntus, Meig., generally occurring in salt marshes, C. albopunc- 

 tatus, Rond., C. quadrimaadatus, Macq., 0. (C.) nemorosus, Meig., 

 and nemorosus var. dorsovittatus, n., C. jugorum, sp. n., which 

 is described, and has been found as yet only at high altitudes, Aedes 

 cinereus, Meig., Anopheles maculipennis, Meig., A. bifurcatus, L., and 

 A. plumbeus, Hal. {nigripes, Staeg.), and the Psychodid, Phlebotomus 

 papatasii, Scop. 



Archibald (R. G ) & King (H. H.). A Note on the Occurrence of a 

 Coleopterous Larva in the Urinary Tract of Man in the Anglo- 

 Egyptian Sudan.- -Bull. Enlom. Research, London, ix, no. 3, March 

 1919, pp. 255-256, 2 figs. 



The case described in this paper is the first on record of a Coleop- 

 terous larva parasitic in the urinary tract of man. The history of 

 the case is given. A specimen of urine under the microscope showed 

 the presence of ova of Schistosonium haematobium. The case was 



