224 
REPORT ON ZOOLOGY, MDCCCXLII : 
Westwood (Arcana Entom. i. p. 66, t. 17) lias figured a gigantic new 
species of Opsomala, 0. gigantea, from Sierra Leone [0. gladiator ? 
Westwood has published no insect under the name of 0. gigantea, and 
0. glad, is on the same plate with Bactrophora\ with a new genus, Bac- 
trophora, which has a short obtuse tooth on the prosternum, a large head 
with a strong statf-like process on the forehead, twenty-four- jointed an- 
tennas a little compressed and articulated to the base of the process of 
the forehead, between and near the large projecting eyes, short fore-legs ; 
B. dominans, long ; native country unknown. 
Westwood (ibid. p. 99, t. 26) has given a monograph on the genus 
Mastax, Perty, which approaches Proscopia by its ascending head, and 
the fewer (perhaps only thirteen) jointed antennas. To the South American 
species, made known by Perty and Serville, he adds three East Indian : 
— M. apicalis, from Sumatra ; M. vitrea, from Java ; M. guttata, from 
Sumatra and the Philippine Islands. 
Among the numerous Acridice described by De Haan (1. c. s.) are 
the following new species : — Truxalis psittacina, from Java. Opsomala 
hicolor, from Java and Japan ; tceniata, from Java. Pyrgomorpha chlo- 
ropus, and hcematoptera, from Java ; novce-guinece, from New Guinea 
and Borneo ; hrachypjtera, from New Guinea. Trigonopteryx punctata, 
from the Cape of Good Hope. Acridium consanguineum, from Macas- 
sar; Hagenbachii, from Java. Oxya ohtusa, from Java; infuscata, from 
the Sunda Islands ; dimidiata, from Amboyna ; ajinis, from Sumatra ; 
microptera, from Java; unistrigata, from New Guinea. Acridium ma- 
cula-lutea, from Sumatra, forms a pecular type between Oxya and (Edi~ 
poda, with a horned prosternum. (Edipoda suhfasciata, from the Island 
of Samu, near Timor ; caliginosa, from the Cape of Good Hope ; vul- 
nerata, from Java ; A-maculata, from the Cape. Mastax agrionoides, 
from Borneo and Sumatra ; cycloptera, from Java ; crenata, from Borneo. 
Hymenotes arcuattis, from New Guinea. Tetrix cornuta, phyllocera, 
and hexodon, from Java ; cephalica, from Sumatra ; gracilis and dila- 
tata, from Java ; gibbosa, from Japan ; brevis and emarginata, from New 
Guinea. 
Of the reporter’s five species from Van Diemen’s Land (Arch, 1842, i. 
p. 250), Truxalis viatica and Mesops pedestris are completely apterous ; 
Acridium ambulans has stumps of tegmina but no wdngs ; Calliptamus 
bajulus and Tetrix argillacea, have the wings perfect but rather short. 
Harris (Ins. of Massachus. p. 132-155) has added many new species 
of this family : — Acridium alutaceum is dark yellowish-brown, with a 
pale yellow dorsal line upon head and prothorax ; a slightly elevated 
keel ; tegmina semitransparent and with irregular brown patches ; wings 
transparent and colourless, but with a network of dark yellow ; the 
abdomen has transverse rows of small blackish patches ; the posterior 
tibiaB reddish, with yellowish white spines having black points ; If" long. 
268 
