536 
ZOOLOGICAL LITERATURE. 
Besides some forms of Diptera, the author, in this valuable 
memoir, describes the embryology of Corixa (pp. 422-436, 
Taf. 26 & 27 a) , and the development of the viviparous Aphides 
(pp. 437-467, Taf. 28-31) and the embryology of Aspidiotus 
neriij with comparative remarks on the phenomena presented by 
other llhynchota, especially Coccus, Aphis, and Psylla (pp. 468- 
478, Taf. 32). 
Marshall (Ent. M. Mag. iii. p. 92) notices some of the species of this 
order, taken by him at Freshwater Bay, Pembrokeshire. Marshall also (7. c. 
pp. 118-119) notices the species taken by him at Loch Rannoch, Perthshire. 
Heteroptera. 
Douglas (Ent. M. Mag. ii. pp. 270-272) notices the occurrence of some 
malformations in the antennoo of species of this suborder, one of the antenna) 
being shorter than the other, and consisting of one joint less. The author 
mentions numerous species of Lygceidce m this peculiarity is often met 
with, and also a few Scutata and Supericornia. One or two special modes of 
aberration are also noticed by Douglas, and the whole are probably due to 
injury sustained by the organ in its preparatory states. The Recorder has 
figured one of these malformations occurring in Poacilotoma grandicornis 
(Erichs.) in Brit. Mus. Cat. Hem. part i. pi. 6. fig. 2 c (1851). 
Scutata. 
Mulsant & Rey, in the second part of their ^ Histoire 
Naturelle des Punaises de France' (Ann. Soc. Linn. Lyon, xiii. 
p. 292), propose the following division of their tribe of Penta- 
tomides into families : — 
I. Tibiae spinous j pronotum not foliaceous at the sides ; scutellum laterally 
sinuated beyond the middle 1. Cydniens. 
II. Tibiae usually unarmed, sometimes spinulose, but then the scutellum 
sinuated before the middle. 
A. Mesosternum channelled. 
1. Pronotum foliaceous at the sides 2. Sciocoriens. 
2. Pronotum not foliaceous ; anterior margins of antepectus produced to 
the eyes 3. JEliem. 
B. Mesosternum with a raised line ; posterior margin of pronotym not 
wider than base of scutellum. 
1. Abdomen not armed with a spine advancing to intermediate 
coxae. 
a. Scutellum sinuated at about two-fifths of its sides. 
' 4. JEysarcoriens. 
h. Scutellum usually sinuated at or beyond the middle of its sides. 
6. Pentatomiens. 
2. Abdomen armed with a spine reaching at least the intermediate 
coxae 6. Acanthosomiens. 
C. Mesosternum with a raised line ; posterior margin of pronotum usually 
wider than base of scutellum, or rostrum not received in a channel 
beneath head 7. Asopiens. 
