36 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Gynandromorphism in Hilara wheeleri sp. n.* — A. L. Melander 

 describes in this new species a rather rare anomaly, viz. antero-posterior 

 or " tandem " hermaphroditism. The front part of the body resembled 

 the normal male, while the abdomen was exactly like that of the female. 



Spermatogenesis in Cybister rosselii. - ] - — D. N. Voinov describes 

 two different modes of spermatogenesis in this insect. They give rise 

 to two kinds of spermatozoa, different in structure, and perhaps dif- 

 ferent otherwise. The two processes occur at different times of year, 

 but among the elements of one kind there are abortive representatives 

 of the other. Dimorphism of spermatozoa has been noted in some 

 other insects, in Pygccra tricephala by Meves, and in Staphylinus by 

 Holmgren ; it also occurs in Paludina and elsewhere. 



Malayan Phasmidse and a Flower-like Beetle Larva.J — Nelson 

 Annandale describes the appearance and habits of Lonchodes sp., a 

 Malayan Phasmid, which he invariably found standing upon the upper 

 surface of broad leaves, especially on those of the wild Banana (Musd), 

 exposed to the full blaze of the mid-day sun. " The insects did not 

 lie along the midrib of the leaf in the characteristic Phasmid attitude 

 of rest, but stood upright, the body being supported on the bent limbs 

 at the height of about an inch above the surface of their resting-place. 

 In this position the red coloration of the insect made it very con- 

 spicuous from above, against the pale green of its support ; while even 

 from below, its shadow was perfectly visible through the translucent 

 tissues of the leaf." 



The author also describes the peculiar larva of a beetle, apparently 

 one of the Endomychidge, which is covered with white filaments, appa- 

 rently of a waxy nature, rising from minute papillse on the dorsal 

 surface of the flat and broad body. " Seen in profile, the larva bore a 

 ludicrous resemblance to a miniature hedgehog, an animal which was 

 also suggested by its gait." It also resembled the head of a species of 

 groundsel, but it was never found associated with this plant. 



Berlese's Bursa in Acanthia lectularia L.§ — D. Carazzi gives a 

 description of the " bursa " which Berlese found in the bed-bug, and 

 interpreted as a spermatophagous organ for destroying surplus sperma- 

 tozoa. Carazzi has not confirmed the interpretation, but he has added 

 to our knowledge of this puzzling structure. 



Larva of Giant Crane Fly.|| — V. L. Kellogg publishes as one of 

 a series of " studies for students " notes on the structure of the larva of 

 the largest kno^n Dipteron — Holorusia rubiginosa, whose life-history 

 has not been previously described. It does not occur except on the 

 Pacific Coast, but the account will be found to answer as a guide to the 

 dissection of any other Tipulid larva. 



Cricket of Aquatic Habits. IF — L. C. Miall and G. Gilson describe 

 Hydropedeticus vitiensis g. et sp. n., a cricket found by Gilson in a clear 



* Psyche, ix. (1901) pp. 213-5 (2 figs.). 



t Comptes Renrius, cxxxv. (1902) pp. 201-3. 



% Proc. R. Phys. Soc. Edinburgh, xiv. Session 1900-1901 (1902) pp. 439-44. 



§ Internat. Monatschr. Anat. Physiol., xix. (1902) pp. 337-48 (1 pi. and 1 fig.). 



|| Psyche, ix. (1901) pp. 207-13 (2 figs.). 



<j[ Trans. EDtom. Soc, part iii. (1902) pp. 281-5 (2 pis.). 



