Three new species of Ammonicera from the Eastern Pacific coast of North
America, with redescriptions and comments on other species of Omalogyridae (Gastropoda, Heterobranchia)

Two new species of dark Neoperla (Plecoptera: Perlidae) from Oriental Realm of China

A new species of Triepeolus (Hymenoptera: Apidae), with comments on
T. utahensis (Cockerell) and T. melanarius Rightmyer

A review of the genus Litinium Cobb, 1920 (Nematoda: Enoplida: Oxystominidae) with descriptions of four new species from two contrasting habitats

Redescription of Vertigo (Vertigo) nitidula (Mousson, 1876) (Gastropoda: Vertiginidae) from the Caucasus region

New record of the bush cricket, Zvenella yunnana Gorochov (Orthoptera: Gryllidae: Podoscirtinae) from India

Calyptraeotheres sp. nov. (Crustacea: Decapoda: Pinnotheridae), symbiont of the slipper shell Crepidula striolata Menke, 1851 (Mollusca: Gastropoda: Calyptraeidae) from the Gulf of California, Mexico

Gasteruption youngi sp. nov. (Hymenoptera: Evanioidea: Gasteruptiidae)
from South Australia; an unusual species with trichoid sensilla on the ovipositor sheaths