380 ICIINKI MKMK.i:. 



narrow keels; the centre l)f\(iii(l I lie.se bordered by a Jiuieli stouter 

 heel ; the central bordei'ed area lias, at the top, two or three stout 

 transverse keels ; the ajiex is smooth ; " pro- and nieso-pleunc 

 l)ilose and trans-acicuhile, w ith 1 he apical sulcus of the latter crenu- 

 iate and its apex obscurely striate below; metapleura? sinuately 

 carinate centrally and more strongly below, with thy intervening 

 space stoutly and subobliquely striate. Scutelhtm basally closely 

 and iinely 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 ; postscutelluni indistinct, and stoutly carinate 

 laterally. Abdomen fulvous, with the third segment (excej^t at 

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

 black ; fourth rarely })aler than h^>t. J^''gs xniicolorous fulvous 

 and densely pilose. Wiiujs 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. 



Letujth 30-32 millim. 



Assam: Khasi Hills {Bothnei/, type), Sylhet ; Cj:yLO>" (Dr. 

 TJiwaites — Oxford M us). 



Type in the Oxford Museum. 



In the specimens I have examined the radius is distinctly 

 infumate basall}', and the region of the black ocelli is not 

 blackish. 



Genus HENICOSPILUS, Steph. 



Enicospilas, Steplieus, 111. jNIaudib. vli, 183o, p. 126. 



Allocamptus, Fiirster {nee Thomson), Verb. pr. Kheiul. 1868, p. 1-jO. 



This genus differs from Ojjliion solely in the presence of corneous 

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

 at once distinguish it from the whole remainder of the IcnNEU- 

 moniDyE, excepting only Orieutospilns, and the radial nervure 

 appears to be constantly thickened basaUy, The former is, as 

 Bridgman and l^itch have remarked (Entom. IS84, 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 caialogues, by Thomson in 1888, and subsequent authors 

 have usually admitted it to generic rank, more often Avithout the 

 necessary aspirate, conclusively accoi'ded it by Marshall (Ent. 

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

 (0|)usc. Ichn.). 



In describing Indian species of this genus, Cameron remarks 

 (JManch. Mem. 1897, p. 24), " Eaicospiltis, or Jlenicospilas as the 

 purists A^ould have it, differs from Ojihion ])roper in the fore wings 

 having a clear s|)ace, which usually contains one or more horny 



