First New World Record for \u3ci\u3eBadonnelia Titei\u3c/i\u3e (Insecta: Psocoptera: Sphaeropsocidae)

Badonnelia titei Pearman (Psocoptera: Sphaeropsocidae) was found in a laboratory building at Soldotna, Kenai Peninsula, Alaska. This is the first Western Hemisphere record of this domestic (i.e. dwelling in human habitations) species. The history of knowledge of this species is reviewed

Comment: Causal Inference in the Medical Area

Comment on Causal Inference in the Medical Area [math.ST/0612783]Comment: Published at http://dx.doi.org/10.1214/088342306000000286 in the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org

Generic definitions and species assignments in the family Epipsocidae (Psocoptera)

The family Epipsocidae is defined, with the addition of one character not previously used. The genus Dimidistriata Li and Mockford is removed from Epipsocidae and tentatively placed in the family Dolabellopsocidae. The genus Parepipsocus Badonnel remains unplaceable to family. Eleven genera are recognized within Epipsocidae. Bertkauia Kolbe, which had been synonymized with Epipsocus, is recognized as a valid genus. Definitions of genera based on the type species and seemingly close relatives result in 38 new combinations. Epipsocus Hagen, which previously held most of the species, now serves a dual function, with 15 species in the strict sense and 15 species 'incertae sedis' retained in it, pending further investigation. Goja Navas, previously with 2 species, now contains 10, with 8 transferred from Epipsoc us. Mesepipsocus Badonnel, previously with 5 species, receives 24 more from Epipsocus and 1 from Dicropsocus. Eight species are transferred from Epipsocus to Epipsocopsis Badonnel. Notable consistency in geographic distributions of genera results from these transfers. Some evolutionary trends within the family are discussed. Epipsocus delicatus (Hagen) and E. completus Banks, which had been assigned by recent authors to the genus Pseudocaecilius Enderlein (Family Pseudocaeciliidae), are returned to the Epipsocidae and assigned to Epipsocopsis. A lectotype is designated for E. delicatus