428 General Notes. [April, 
scribes the early stages of some Mexican Lepidoptera. We 
regret to notice that Mr. Edwards is unable to conduct this very 
successful journal, which will hereafter be published by Mr. E. 
M. Aaron, P. O. Box 2500, Philadelphia, Pa. -An elaborate 
essay on the thoracic muscles of insects, by C. Luke, appears in 
the Jena Zeitschrift, for Oct. 13,83. With the exception of the 
Thysanura (including the Collembola) insects of all orders have 
been examined. The Quarterly Journal of the Boston Zodlog- 
ical Society, for Jan., prints valuable notes on the habits and 
metamorphoses of Hydrocharis obtusatus and Magdalis olyra, by 
F. C. Bowditch—Dr. Hagen states in the Extomologist's Monthly 
Magazine, for Jan., that he saw at Wood's Holl Anax longipes 
preying upon Papilio asterias, catching them and settling on 4 
shrub to behead and devour them. This is a rare southern form. 
——A case of sex-dimorphism in the Psocidz is noticed by Ph. 
Bertkau (Archiv. fiir Natur., 183). In Z heteromorphus the 
; be. (Archiv. far 
Natur., 1883) characterizes forty-three species of Dytiscid@ per 
Madagascar, in the entomological museum of Berlin, aa si 
noses twenty other species found in Madagascar, aS well as 
found on the surrounding islands only. The usua 
gascar and the Oriental region than in Africa, = ion 
Species are nearer to those ot the Oriental and Australian | 
pone sr oe ae Ethiopian ; and, on the whole, th 
æ tha 
are nearer those of the two former faune that 
the greater part of which wi gued ties 
, e greater part of which will probably be Bee ; ry notices 4 
the latter’s notice it is stated that LeConte describe f the la 
500 genera and nearly 5000 species, three-fourths © notable f 
_ temaining valid; but, it is added, that his work was 
his breadth of view as well as analytical powers- 
