352 EXPERIMENT STATION RECORD. 



on the same leaf but pass from one leaf to another and frequently fly from 

 tree to tree. Larvae from the egg clusters disperse to different leaves. Adults, 

 both male and female, feed continuously throughout the period of reproduction. 



The mango weevil, A. Rutherford (Trop. Agr. [Ceylon], 42 (1914), ^^o. 5, pp. 

 410, 411; ahs. in Rev. Appl. Ent., 2 {1914), Ser. A, No. 9, pp. 540, 541).— 

 Cryptorhynchus mungiferce is said to be widely distributed in India, Ceylon, the 

 Philippines, Madagascar, South Africa, and Hawaii. It is stated that in La- 

 buan, Straits Settlements, where this species seems to be spreading, only about 

 10 per cent of the mangoes are edible, probably because of this species. 



On some Curculionidae living in bamboo stems, A. da Costa Lima (Mem. 

 Inst. Oswaldo Cruz, 6 (1914), No. 2, pp. 117-123, pis. 2).— A small cultivated 

 bamboo, known in Brazil as Indian cane, frequently suffers from the attacks 

 of Ercthistes lateralis. As a result the stem breaks at the place of infestation 

 and drops to the ground. Its egg is parasitized by a chalcidid, here described 

 as Prodecatoma cruzi n. sp. Indian cane is also attacked by the tenebrionid 

 Acropteron ruflpes, which feeds on its shoots, and by a lamellicom beetle 

 (Bolax sp. ?), which consumes the leaves. 



The scent producing organ of the honeybee, N. E. McIndoo (Proc. Acad. 

 Nat. Sci. Phila., 66 (1914), Pt- 2, PP- 542-555, pis. 2, fig. jf).— This article deals 

 entirely with the morphology of the scent-producing organ, the work relating 

 to the odors produced by it being reserved for a separate paper. 



Beekeeping for the Oregon farmer, H. F. Wilson (Oreg. Agr. Col. Bui. 

 168 (1914), pp. SI, figs. 14)- — This furnishes practical information for those 

 engaged in beekeeping. 



Notes on the life history and ecology of Tiphia inomata, G. N. Wolcott 

 (Jour. Econ. Ent., 7 (1914), No. 5, pp. 382-389) .—The scoliid here discussed is 

 the most important parasite of Lachnostema larvae in this country. The ob- 

 servations reported were made in central and northern Illinois during 1912-13 

 while the author was engaged in collecting the parasite for introduction into the 

 sugar cane fields of Porto Rico. 



There appear to be two generations each year, the species hibernating either 

 as a larva, pupa, or adult inside the cocoon. Under favorable circumstances it 

 greatly reduces the numbers of grubs and in some cases practically extermi- 

 nates Lachnostema from limited areaa 



Of the several checks to its increase a fungus, thought to be a species of 

 Isaria, is said to be the most important. 



Preliminary observations upon the life histories of Zenillia pexops and 

 Hypamblys albopictus, R. A. Wardle (Jour. Econ. Biol., 9 (1914), No. 3, pp. 

 85-104, pis. 3, fig. 1). — ^This article relates to two parasites of the large larch 

 sawfly (Nematus erichsonii) which have not previously been recorded. 



It is stated that the decline in numbers of the parasite Mesoleius tenthredinis, 

 formerly quite abundant, was one of the features of the investigation of the 

 large larch sawfly in 1913. This decline is said to have been accompanied by 

 the appearance in comparatively large numbers of the two previously un- 

 recorded parasites that are here considered, namely, " H. albopictus, an ichneu- 

 mon closely related to Mesoleius, and having corresiwuding life history stages, 

 though emerging possibly a few days earlier (Hypamblys hibernates as a first 

 stage larva), and Z. pexops, a tachinid fly. probably the same parasite that has 

 previously been recorded at various times since 1910 as Exorista crinita, E. 

 alacris, and E. duhia. Zenillia is exceptional for a tachinid in hibernating as 

 a final stage larva. It pupates and forms its puparium within the cocoon of the 

 sawfly, and emerges about the same time as the host. As Zenillia appears to 

 predominate at the expense of the ichneumon parasites, It is important that 



