no 



cave ; angles rounded ; of female conical or triangular, com- 

 pressed or flat, more or less deeply incised, angles acute. Cerci 

 lanceolate, flat, acute, from one-half to twice the length of the 

 lamina. Subgenital lamina of male with slender, acute styles, 

 inserted at the apex of the keels, mostly produced. Valvules of 

 female conjoined, not or scarcely free, the suture indicated by 

 a furrow or keel separated by furrows from the adjoining mem- 

 brane. 



The genus differs from Flatyzosteria by the longer cerci of both 

 sexes, and the styles of the males ; from Periplaneta by the 

 lobiform elytra, pale margins, &c., and from all by the conjoined 

 valvules of the female. The species frequent woods, never 

 human habitations, unless carried there by accident. Their 

 habits appear to be more or less nocturnal, leaving their hiding- 

 places soon after sunset, or on cloudy days in the late after- 

 noon, when they run about actively on the surface or ascend 

 shrubs and trees in quest of their prey, viz., living insects of all 

 kinds ; and have therefore a claim, so far as ascertained, to rank 

 as highly beneficial generally. Most of them are readily dis- 

 tinguished by the pale margins of the thorax or all round the 

 body. 



Drymaplaneta communis, sjoec. not: 



Elongate oval, black (or lurid when young), smooth, shining. 

 Head and antenna? reddish, space at base of latter and mouth- 

 parts pale-yellowish. Pronotum mostly with a faint dark-red 

 median line, and a pale-yellow, cuneiform lateral stripe on each 

 side, narrow in front, broad behind, bordered outside narrowly 

 with black, and continued along the meso- and meta-notum, 

 occasionally extending to the basal part of the adjoining abdom- 

 inal segment, and sometimes reappearing in the form of round 

 dots on one or more of the following ones. Elytra rather broad, 

 inner part and apex black, not much exceeding the mesonotum. 

 Underside of body piceous, varied with red. Coxae broadly white- 

 bordered ; femora and tibiae paler or darker red ; tarsi pale- 

 reddish. Abdominal segments angular, angles much produced, 

 acute. Supra-anal lamina of male subangular, narrowed behind, 

 angularly and broadly emarginate, ciliate ; of female narrow, 

 triangular, deeply emarginate, apex of lobes rounded. Cerci 

 long. Subgenital lamina of male, like supra-anal, transverse, 

 emarginate, angles rounded ; styles long. Subgenital plate of 

 female subvalvular. 



Male. Female. 



Length of body ... 21-25 mm. 18-20 mm. 



Length of elytra ... 4 " 3 " 



Length of pronotum 6~ 7 " 5- 6 " 



Width of pronotum 9-10 " 7~ 8 " 



