44 Mr. R. Shelford on some 
between the eyes; antenne testaceous. Prothorax trans- 
versely elliptical, margins hyaline; disk fusco-castaneous with 
the centre testaceous, on which are some fuscous markings. 
Tegmina hyaline with pale fuscous spots along the veins ; 
twelve costal veins, nine discoidal rami. Wings hyaline, 
veins fuscescent ; nine costal veins ; medio-discal area twice 
as broad as medio-ulnar, crossed by several irregular trans- 
verse bars; ulnar vein simple; first axillary vein biramose, 
upper branch irregularly bifurcate. Abdomen fuscous, with 
testaceous markings; cerci long, fuscous, with a broad 
testaceous band. Legs testaceous. 
Total length 8 mm.; length of tegmina 6°5 mm. 
Five males without ae tis (Oxford Museum). 
It is possible that this is the Blatta marcida of Erichson, 
a species placed by Brunner with some doubt in the genus 
Ectobia, Westw. 
Genus CHoRISONEURA, Br. 
Chorisoneura Brunneri, sp. u. 
?. Head fuscous, vertex rufo-castaneous ; antennz fuscous 
at base, the remainder testaceous. Prothorax transversely 
elliptic, disk fuscous, margins hyaline. Tegmina castaneous 
with hyaline costal margin and with fuscous humeral vitta, 
veins white ; sixteen costal veins, very irregular; median vein 
distinct, longitudinal, discoidal vein with four irregular 
branches ; the whole surface of the tegmina is much re- 
ticulated, and the veins are rather obscured thereby ; the 
part of the right tegmen covered by the left is infuscated. 
Wings fuscous, the edge of the marginal field yellowish ; 
eleven costal veins, their ends swollen, joined by transverse 
bars ; medio-discal field crossed by several transverse bars ; 
ulnar vein arcuate, simple; apical triangle unevenly divided, 
its base acutely angled, its apex subtruncate. Abdomen 
fulvous, legs testaceous. Cerci long, testaceous. 
Total length 8°5 mm.; length of tegmina 7°5 mm. 
Rio Grande do Sul. "Two examples labelled in Brunner 
v. Wattenwyl’s bandwriting “ Chorisoneura, sp. n.” (Oxford 
Museum). 
The species appears to be distinct from anything described ; 
perhaps it shows most affinity with C. anomala, Sauss. & 
Zebnt. 
Chorisoneura morosa, sp. 0. 
¢. Head rufo-fuscous, with a pale narrow transverse 
line between the eyes; antenne (mutilated) testaceous ; 
——" 
