128 Ml . E. R. Parker on 



femur usually with three rows of bristles, those of inter- 

 mediate row few ill number and sometimes almost laeking ; 

 posterior face without lower row of bristles ; tibia straight ; 

 tarsus not shorter than tibia. Anterior and posterior ventral 

 row^s of bristles of middle femur present, former with only 

 scattered bristles proximally, latter present on distal half 

 only ; submesotibial bristle [)resent, anterior face of tibia with 

 but a single bristle close to median dorsal ridge. 



Clicetotaxy, — Anterior dorso-centrals about twice length of 

 vestiture ot prescutum ; acrostichals absent ; inner presuturals 

 present ; four or more pairs of posterior dorso-centrals, only 

 posterior two strong ; prescutellar acrostichals present ; scu- 

 tellar apicals })resent ; three sterno-pleurals ; lower sterno- 

 pleura with bristles only. 



Abdomen. — Clothed above with short reclinate bristles, 

 beneath with somewhat longer, almost erect hairs. Yestiture 

 of fourth ventral plate short and appressed. 



Ghcetotaxy.- — Second segment without dorsal marginal 

 bristles ; third with two dorsal marginals and usually with 

 two pairs of laterals. 



Genital Segments. — First segment dark, without marginal 

 bristles; second segment dull orange. Forceps (fig. 4,/.) 

 darker than second segment, in profile anterior and posterior 

 edges parallel on distal third, tip slightly curved forv/ard 

 with an angular tooth at extremity, prongs approximated for 

 slightly more than basal half. Structure of penis very similar 

 to that of S. fuscicaudaj Bottcher. 



Female. — Differs from male in following essential charac- 

 ters : — Breadth of front at narrowest part two-thirds eye- 

 width ; cheek-he'ght about one-fourth that of eye : at its 

 narrowest part frontal vitta scarcely wider than width of eacli 

 parafrontal; row of hairs on gena near eye extends up on to 

 parafrontal ; vestiture of abdomen of short reclinate bristles 

 except that that of ventral surface of fourth notuin is erect 

 and hairy ; fifth abdominal notum (first genital) of same 

 colour and pollinosity as those preceding ; third abdominal 

 notum dorsally and laterally with complete or nearly com- 

 plete row of marginal bristles. 



Described from six male and six female specimens. 



Ceylon : Peradenyia, 1. viii. 1919 {J. C. Hutsoii). South 

 India: Guindy, Madras, 18. iii. 1915 (C. K, S.), 



Nine of the twelve specimens were taken from Aristolochia 

 sp., at Peradenyia, Ceylon, and from the appearance of the 

 specimens they seem to have been reared (record no. 4426), 

 Two specimens from South India are labelled " Par. on 



