Petalocephala umbrosa Distant

Petalocephala umbrosa Distant Figs 10E–H, 19B. Petalocephala umbrosa Distant 1908: 165. Diagnosis. Female. Crown yellowish green with lateral margins narrowly carmine red as in P. viridula (see below). Sternite VII slightly posteriorly broadly produced medially with straight margin (Fig. 10G). Description. Distant (1908) adequately described the external features of this species. Additional features are as follows. Crown lateral margins in front of eyes converging anteriorly, apex angularly rounded, median longitudinal carina prominent; 0.82× as long as interocular distance; 1.07× as long as pronotum medially. Ocelli about as close to each as to adjacent eye. Pronotal lateral margins slightly divergent posteriorly, distance between posterolateral angles 1.14× as that between anterolateral angles; medially longitudinally finely carinae; 0.93× as long as mesonotum. Sternite VII slightly posteriorly broadly produced medially with straight margin (Fig. 10G). Material examined. INDIA: Assam: SYNTYPE ♀, “Margherita (Doherty)”, “ umbrosa Dist., type”, “Type”, “ Syntype ”, “Distant Coll. 1911-383”, “NHMUK 010592237”; SYNTYPES 3♀, “Nilgiri Hampson”, “Distant Coll. 191-383”, “ Syntype ”; 1♀, “Utakamund”, “Atkinson Coll. [18]92-6”, “ Syntype ” (all BMNH). Additional material. INDIA 5♀, Nilgiri Hills, Lovedale, of which 2♀ are T.V. Campbell, B.M. 1928-478 (all BMNH). Remarks. Distant (1908) described this species based on an unspecified number of female specimens (syntypic) with data “Nilgiri Hills (Hampson); Utakamund (Brit. Mus,); Bombay: Igatpuri (Lefroy); Assam; Margherita (Doherty)”. The crown of female P. bicolor, P. hearsayi, P. perductalis and P. umbrosa are similar in having angularly rounded apex, but they differ in their proportions and coloration. P. umbrasa has similar carmine red narrow marginal coloration of crown as in L. viridula, but the lateral margins of P. umbrosa are more or less straight, but those of L. viridula are more or less convex.