Linnaan Society. 381 
In the sexual variations detailed above, it is the male insect which 
varies most from the type, but the females of some species of Me- 
chanitis present a remarkable structure in the anterior portion of the 
wing, the costal nervure being united to the subcostal for the greater 
part of its course. 
An additional interest attaches to these peculiarities of the wings, 
from their being combined with the great peculiarities above referred 
to in the structure of the anterior feet. 
The writer then proceeded to point out some analogies in the struc- 
ture of the wings of the Ithomice and some Hymenoptera, especially 
as regards the inner margin of the anterior wings and the anterior 
margin of the posterior wings, and also with reference to a fringe of 
hairs on the latter, analogous to the hooks occupying the same po- 
sition in the Bees and other Hymenoptera. 
December 7. — E. Forster, Esq., V.P., in the Chair. 
Read a “ Description of a new genus of Lentihularice, with remarks 
on some Indian species of Utricularia.” By M. Pakenham Edge- 
worth, Esq., F.L.S. &c. 
Ge?i. Nov, Diurospermum. 
Calyx bilabiatus, labio superiore 2- (rarius 3-) deutato. Corolla bilabi- 
ata, tubo bvevi, labio superiore brevissimo truncato, inferiore 3-dentato. 
Stamina inclusa. Stylus brevis, stigmate dilatato. Capsula ovata, 
oligosperma; placenta central! libera conica in apicem producta. Se- 
mina pauca (prope 6), ovata, testa laxfv striato-rugosa, utrinqiie pilis 
paucis longis caudata. Nucula compressa, submarginata. Embryo ? 
— Herba acauUs, foliis radicalihus, radicibus utriculiferis. 
Diurospermum album. 
Hah. super rupes madidos, in Vishnugangetis valle, Himala; alt. 8000 
ped. 
This little plant, the author thinks, forms a link connecting Len- 
tibularice with Cyrtandraceee, to which order its tailed seeds show an 
approximation. Unfortunately he has not been able to separate the 
embryo so as to be satisfied with its nature and direction. In habit 
it resembles slightly some of the section Oligocista of Utricularia. 
Utricllaria (subgenus Oligocista) foveolata, radicibus fibrosis brevi- 
bus, scapo simplici apbyllo 2 — 6 floro racemoso sinistrorsum volubili, 
bracteis solitariis ovatis acutis basi-fixis pedicello vel longioribus vel 
multo brevioribus, lobis calycinis pedicello longioribus ovatis acutis 
corollam subsequantibus in fructu cum pedicello defracto valde auctis, 
corollae labio inferiore vix concavo margine 3-lobo superiore bifido : cal- 
care conico labii inferioris longitudine, capsula cernua calyce aucto 
obtecta, seminibus majusculis compresso-trapezoideis rugoso-foveolatis 
foveolis nitidis punctatis. 
Hub. in Bengalia, uliginosis, Januario. 
An U. uliginosa, DC., no. 66. vol. viii. p. 15? Flos purpureus, scapus ru- 
bescens. 
Utricularia polygaloides, radicibus fibrosis, scapo apbyllo erecto plus 
minus ramoso 2- v. multi-floro, squamis adpressis ovatis acutis, bracteis 
ternis exterioribus ovatis acutis interioribus subulatis pedicello com- 
presso aequalibus vel longioribus, lobis calycinis ovatis acuminatis sub- 
