Mr. R. Slielford's Studies of the Blattidie. 499 



Allied to E. saravacensis, Shelf. Testaceous ; the ground-colour 

 however obscured by a dense castaneous maculation and vermicula- 

 tion. Pronotum not covering vertex of head, not jaunctate, posterior 

 margin angulate, 9'5 mm. x 13 mm. Large ocelliform spots on 

 the distal halves of the tegmina ; mediastinal vein stout with three 

 short branches and one slender ramose branch, costals few but 

 highly ramose ; surface of tegmina not punctate. Wings with mar- 

 ginal field semi-coriaceous and suffused with castaneous, apex not 

 sinuate or angulate. Sub-genital lamina produced, trigonal. Front 

 femora beneath with eight spines on anterior margin, two on pos- 

 terior margin, no genicular spine ; formula of apical spines t, {, {. 



45. Epilampra plena, Wlk. 



Epilampra plena, Walker, 1. c. p. 211 (1868). 

 Epilampra fervida, Walker, 1. c. p. 211 (1868). 



$. Macassar, Gclehes (Wallace) [plena], 

 $. Macassar, Celebes (Wallace) [fervida], 



JE. plena, Wlk. ; E. ptuncticollis, Wlk. ; E. quadrinotata, 

 Wlk.; E. 11^1601118,388., a.nd E. jlavoinarginata, Shelf, form 

 a congeries of species that it is not easy to discriminate ; 

 the differences in coloration are slight, and it is almost 

 impossible to express them in writing. The species are 

 small, averaging 25 mm, in total length ; they are amber- 

 coloured or testaceous, the ground-colour however being 

 obscured by densely placed and minute castaneous or 

 fuscous maculae, and vermiculatious, so that the insects 

 appear to be of some shade of castaneous. The pronotum 

 does not cover the vertex of the head, its posterior margin 

 is obtusely angled and produced, its surface is quite 

 smooth. The posterior legs are long and slender, the meta- 

 tarsus particularly so, and the pulvilli are margined with 

 spines. The veins of the tegmina are strongly marked, 

 and between them at the base only of the tegmen appear 

 series of shallow ill-marked punctures. E. puncticollis, 

 Wlk,, from Borneo can be distinguished by two converging 

 impressions on the front part 'of the pronotum ; E. Imvicol- 

 lis, Sss., from Java is possibly synonymous ; E. quadrinotata, 

 Wlk., from Borneo is smaller (20 mm. total length), has 

 four fuscous maculae on the pronotum, and the supra-anal 

 lamina is notched deeply, not merely cleft; E. 2)lena,V\/\k., 

 from Celebes and New Guinea has no impressions on the 

 pronotum and is larger than quadrinotata, the form fervida 



TRANS. ENT. SOC. LOND. 1906, — PART IV. (jAN, 1907) 33 



