Rhyacophila bifurcata sp. nov. is described from males collected in Olympic National Park, Washington. The new species is most similar to R. milnei Ross, 1950. A diagnosis and discussion of the R. vagrita group are given.

The goals of this study were to 1) determine the field survival rate of single and multiple U. crassicornis females tending their offspring, 2) determine if a female will adopt an egg mass or nyphal aggregation that has lost its parental female as is seen in other treehoppers, 3)determine the physical characteristics of the sites selected by female U. crassicornis for oviposition and 4) show how these data interrelate and explain the pattern of U. crassicornis egg mass deposition within and among the host plants. An average of 27.9% of the female U. crassicornis survived until their offspring reached maturity. Having two or more females at a site doubles the probability of at least one surviving until the offspring reach maturity. An egg mass or nymphal aggregation without a guarding female may be adopted by another female. Females need four to seven cm of plant tissue 2.5 to 3.5 mm in diameter that they can encircle with their mesothoracic legs in which to oviposit. The females do not aggregate their egg masses but rather randomly distributed them among sites with the proper physical characteristics. The random distribution of egg masses provides a bridge between maximizing offspring survival and fecundity of the daughters.

One new state record and two range extensions are documented in California for three species of adventive European carabid species: Harpalus affinis (Schrank, 1781) and Amara apricaria (Paykull, 1790) and Agonum muelleri (Herbst, 1784), respectively.

Collections of the Charles Darwin Research Station, Royal Belgian Institute of Natural Sciences, as well as new field samples obtained from several islands on Galapagos yielded new records of nine ant species for the archipelago: Tapinoma sp. HH07, Nylanderia steinheili (Forel, 1893), Crematogaster sp. JTL-022, Pheidole sp. HH01, Tetramorium lucayanum Wheeler, 1905, Strumigenys eggersi (Emery, 1890), Solenopsis sp. HH06, Hypoponera opacior (Forel, 1893), Odontomachus ruginodis Smith, 1937. Currently, the known number of ant species in the Galapagos is 51, 36 of which are thought to be introduced. Reasons for this recent increase of records of introduced ant species are discussed.

New distribution and host records are provided for four whiteflies intercepted at U.S. ports of entry on propagative material of Magnolia from Asia. Aleuroclava latus (Takahashi, 1934), Aleuroclava nitidus (Singh, 1932), and Cockerelliella meghalayensis Sundararaj & David, 1992 were intercepted on the leaves of Magnolia spp. (Magnoliaceae) from Thailand. Cockerelliella indica Sundararaj & David, 1932 was intercepted on the leaves of Magnolia yunnanensis (Hu) Nooteboom from China. An identification key to the puparia of the whiteflies found on Magnolia species is included along with revised descriptions and illustrations of all the species based on the specimens intercepted at U.S. ports of entry.

The subgenus, Rheocricotopus (s. str.) Brundin, 1956 from China is reviewed. Rheocricotopus (Rheocricotopus) heterochros sp. nov. is described from an adult male. Rheocricotopus (R.) inaxeyeus Sasa, Kitami & Suzuki, 2001 and R. (R.) pauciseta Sæther, 1969 are recorded from China for the first time. The diagnosis for the subgenus is emended, and a key to adult males of the subgenus in China is presented.