380 ICHXKL'.MOMD.K. 



narrow keels; the centre beyond t hese bordered by a much stouter 

 keel ; the central bordered area has, :it the top, two or three stout 

 transverse keels ; the apex is smooth ; " pro- and meso-pleurae 

 pilose and trans-aciculate, with the apical sulcus of the latter crenu- 

 late and its apex obscurely striate below ; metapleurae sinuately 

 carinate centrally and more strongly below, with tho intervening 

 space stoutly and subobliqnely striate. Scutellum basally closely 

 and finely punctate, longitudinally aciculate and densely pilose; 

 transcarinate before the darker and closely aciculate apex ; basal 

 fovea broad and deeply impressed, bordered by an elongately 

 pilose carina ; postscutellum indistinct, and stoutly carinate 

 laterally. Abdomen fulvous, with the third segment (except at 

 its lower third), and the remainder or three apical ones entirely, 

 black ; fourth rarely paler than first. Leys unicolorous fulvous 

 and densely pilose. Wings hyaline, with a single circular or 

 interiorly abruptly dilated corneous spot in the glabrous area ; 

 nervures and stigma black ; basal abscissa of the radius thickened. 



Length 30-32 millim. 



ASSAM: Khasi Hills (Rothney, type), Sylhet ; CEYLON (Dr. 

 Ttiwaites Oxford Mus). 



Type in the Oxford Museum. 



In the specimens I have examined the radius is distinctly 

 infumate basally, and the- region of the black ocelli is not 

 blackish. 



Genus HENICOSPILUS, Steph. 



Enicospilus, Stephens, 111. Mandib. vii, 183o, p. 126. 



Allocamptus, Ftirster (nee Thomson), Verb. pr. Rheiul. 1868, p. 150. 



This genus differs from Ophlon solely in the presence of corneous 

 marks upon Hie glabrous disc of the first cubital cell, which will 

 at once distinguish it from the whole remainder of the ICH^EC- 

 MONID^E, excepting only Orientospihis, and the radial nervure 

 appears to be constantly thickened basally. The former is, as 

 Bridgman and Fitch have remarked (Entom. 1884, p. 177), "a 

 very unstable character, and not of generic value, although in- 

 cluded as only a convenient division of the species of Ophion." 



For long the genus had a most precarious existence and was 

 not recognised by Holmgren, Desvignes, Kirchner, or the older 

 Continental authors ; but it was accepted by Marshall in both 

 his catalogues, by Thomson in 1888, and subsequent authors 

 have usually admitted it to generic rank, more often without the 

 necessary aspirate, conclusively accorded it by Marshall (Ent. 

 Annual, 1874, p. 129), though still denied by Schmiedeknecht 

 (Opusc. Ichn.). 



In describing Indian species of this genus, Cameron remarks 

 (Manch. Mem. 1897, p. 24), " Enicospilus, or Jlenicospilus as the 

 purists would have it, differs from Ophion proper in the fore wings 

 having a clear space, which usually contains one or more horny 



