Ins. 1 
INSECTA. 
By D. Sharf. 
The number of titles is this year 927, as against 949 in 1889* 
The classification of the Coleopterous family Pselaphidce has beeil 
remodelled by It affray (631), who finds that we are acquainted at 
present with about 274 genera ; 43 only being the number comprised in 
the Munich Catalogue of the year 1868. Ragonot (634) has commenced 
the publication of a similar work on the Pyralidai^ a group of Lepido- 
ptera , in which the increase of genera .will apparently be equally great* 
Beauregard has produced a comprehensive work on the ( Jantharidce 
(37), treating of the anatomy* biology, and taxonomy of the group, and 
in fact wanting only the characters of the species to be a monograph of 
the family. In Diptera , the work of Brauer & Bergenstamm (82) is 
noteworthy ; in it some 50 families and about 130 new genera are 
proposed for a portion of the Muscidce acalyptratcc, and these chiefly 
European ; tbe work being confined to the species extant in the Museum 
at Vienna* 
We are indebted to the regretted E. T. Atkinson for a complete 
catalogue (19) of the Capsidce of the world, and to Kirby (428) for a 
similar useful list of the Odonata. 
Moschler (558) has published a descriptive list of the Lepidoptera of 
the Island of PortOrico ; a large proportion of the 622 species it includes 
being considered new* 
Skuse has not only continued the publication of his “ Diptera of 
Australia” (791), but has also found a supplement (792) to the parts 
published during the last two or three years necessary. The Insecta in 
Godman & Salvin's Biologia Centrali- Americana (317) have made tbe 
usual amount of progress. Oudemans (586) has given us one of our 
first glimpses of the Thysanura of the tropics. 
Meinert (521) has described an apterous Dipteron , and Leon (481) an 
insect that he considers intermediate between Diptera and Hemiptera. 
Lowne has commenced the publication of his monographic work (492) on 
Calliphora erythrocephaluf and Graber (321) has continued his researches 
in Insect embryology. 
Another of the important volumes issued by the United States Ento- 
mological Commission has appeared during 1890 ; it is by Packard (588), 
1890. [VOL. XXVII.] F 1 
