110 [May, 



The number of species of Zygoptera occurring-, or probably occurring, in 

 the State of Illinois is stated to be forty-two, which corresponds exactly wilh 

 the total number of Odonata of both suborders known from the British Isle?, 



Numerous details of nymphal and iraaginal structure are illustrated by 

 means of 228 figures, arranged in 16 plates. A high standard of excellence ia 

 maintained throughout the series, but the explanations of the plates stand in 

 need of a little revision. The inclusion of the numbers 217, 222, and 228, 

 belonging to pi. Ixxiii, in the references to pi, Ixxii, is unfortunate and con- 

 fusing. The figures on pis. Ixviii and Ixxi, described as "anal appendages of 

 adults," represent anal appendages of the male sex alone. Fig, 205, how- 

 ever, must have been included among these structures by mistake, as it is 

 evidently intended to correspond with tigs. 118, 121, 147, 165, 171, 172, 

 and 183, which show the paired plates on the ninth abdominal segment of 

 the male. The same error in designation has found its way into the text 

 (p, 530), and the number 205 is omitted from the list of references on 

 p. 436, to which it rightly belongs. These figures of male gonapophyses, 

 here termed " parameres," claim attention from another point of view, inas- 

 much as they reveal wide differences in the form of structures which have 

 never been employed at all extensively as diagnostic characters. Equally 

 interesting and little-used characters are found in the female sex. These are 

 the thoracic structures known as the mesostigmal ( = mesostigmatic) plates, 

 and an entire plate is devoted to their representation, in addition to several 

 other figures included in pis. Ixix and Ixx. Among the plates referring to the 

 nymphal stages, special mention should be made of the fine series of figures of 

 caudal gills, reproduced in pis. Ixii-lxiv. 



The hope may be expressed that a similar treatise, dealing with the 

 Anisoptera of Illinois, is in contemplation by the same author, and likewise 

 that the same eminently satisfactory mode of publication may again become 

 available to him. — IIeebert Campion. 



The South London Entomological and Natural History Socikty : 

 Februmy 13th, 1919. — Mr. Stanley Edwards, F,L,S., F.E.S,, President, in 

 the Chair. 



Mr. Ashdown exhibited some of the Coleoptera referred to in " Ent. 

 Record," Dec. 1918, viz. Mordella uculeata and Agrilus sirmatus, species new 

 to Surrey, and the rare streaked ab. hebraea of Anatis ocellata. Mr. Tatchell, 

 Vanessa io, with aberrant ocelli on hind wings, Aglais nrticae ab. coimexa, a 

 large A. iirticae ab. versicolor, and the beautifnl parasitic Hymenopteron 

 3Iutilla europaea. Mr. Turner, a long series of Loiveia {Chrysoi)hanu$) aid- 

 phron from various localities, including (1) type from Bueta, (2) gorclms 

 from the Alps, (3) grenadensis from Spain, (4) ab. intermedia from Italy, 

 (5) ab. viduata, (6) meliboeus from Bosnia, (7) ab. siibfa&ciata, and (8) ab. m- 

 fulvata 5 . Mr. R. Adkin, captured and bred specimens of Dioryctriu abietella 

 from Forres, and read notes on the species, asking for information on details 

 of its life-history. Mr. A, W. Buckstone, bred series of Vanessa io from 



