This paper presents a preliminary checklist of butterfly species (Class Insecta: Order Lepidoptera) recorded from the island of Pulau Tioman (Malaysia) from 25 to 28 June 1996, and from 24 to 27 June 1997. Our survey yielded 78 species belonging to 57 genera and 5 families. Of these species, 25 are possibly new records for the island.

Larvae of 12 New World species of Passalidae are described and 7 species redescribed, bringing the total number of species described to 134 worldwide. A key is provided for all New World genera. Basic setal pattern differences differentiate New World Passalini from Proculini, with the latter tribe showing 2 basic groups of genera. Some exceptions to these basic patterns suggest possible nomencl...

The notion of the genus of a quadratic form is generalized to vertex operator algebras. We define it as the modular braided tensor category associated to a suitable vertex operator algebra together with the central charge. Statements similar as known for quadratic forms are formulated. We further explain how extension problems for vertex operator algebras can be described in terms of the associ...

In this paper we prove an equivariant version of the McKay correspondence for the elliptic genus on open varieties with a torus action. As a consequence, we will prove the equivariant DMVV formula for the Hilbert scheme of points on C.

The sting apparatus anatomy is described and compared for 24 species in six of the 9 extant genera of Ectatommini: Paraponera, Acanthoponera, Gnamptogenys, Ectatomma, Proceratium, and Discothyrea. Phylogenetic analysis sorts 15 species of Gnamptogenys into four species groups. Phylogenetic analyses on the six ectatommine genera suggest that: 1) Gnamptogenys and Ectatomma are sister genera, 2) P...

We tested 388 strains of anaerobes from 17 genera for the production of phenylacetic acid. The compound was found in only two genera (Bacteroides and Clostridium) but not within all the species of these genera.

AS e 5m_2(S), AE e O5m-2(E) and (As)r = (AE)r; thus A -* AS + AE iS a linear mapping of Om -2(9ON) into (M. It follows from the proposition (II) that, for every element a, + a2 of 5, there exists one and only one element A Of O5m-2() with AE = a2. This element A satisfies (a, As)r= a2r (AE)r = 0, while r = ES is a hyperplane section of S. Hence, by the proposition (I), we get AS = a,. Thus we s...

Microcomplement fixation was employed to compare the immunological differences that occur between purified inhibitor I from potato tubers, the four purified protomers that comprise it, and inhibitor I from tuber and leaf extracts. Total inhibitors of chymotrypsin and trypsin in leaves of seven genera of the Solanaceae were identified by enzymatic assay. In leaves of three genera, Solanum, Lycop...

Thirteen species in five genera of the Libellulidae family were collected in a survey of dragonflies (Odonata) of Shiraz and its vicinity, involving 19 locations, The presented records of the libellulid dragonflies taken from the Fars province comprise a first time collection of two genera, Sympetrum and Pantala, and seven species, Orthetrum anceps Schnider, Orthetrum taeniolatum Schneider, Ort...