72 Mr. R. E. Turner's Notes on the Thi/nnirlK, 



segiuenl, a transverse spot on each side of segments 2-4 above and 

 below and a small spot on each side of the fifth segment, the coxre 

 beneath and a line beneath the femora yellow. Wings hyaline, very 

 slightly tinted with yellow, iridescent, with a faint fuscous cloud in 

 the radial cell, nervures black, stigma and costa ferruginous. 

 Length 17 mm., exp. 29 mm. 



Hah. Caracas, Venezuela. Type in Oxford Uni- 

 versity Museum. 



Pscndelaphroiotera rollci, n. sp. 



^ . Clypeus moderately produced, narrowed to the apex, where it 

 is very feebly emarginate and produced into a minute tooth at each 

 of the apical angles ; a depressed longitudinal sulca from the base 

 almost reaching the apex. Antenna? inserted far apart, nearly half 

 as far again from each other as from the eyes, as long as the head and 

 thorax, not including the median segment, the second joint of the 

 flagellum a little shorter than the third. Head closely punctured, 

 with thin grey pubescence on the clypeus and the front, a very deli- 

 cate longitudinal carina between the antennte continued very faintly 

 to the anterior ocellus. Mandibles bidentate at the apex, not 

 elbowed, the outer tooth longer than the inner. Pronotum almost as 

 broad as the head, slightly and broadly emarginate anteriorly, the 

 anterior margin feebly raised. Thorax punctured, closely on the 

 sides of the mesonotum and between the two longitudinal lateral 

 sulcae, elsewhere sparsely. INIedian segment broad, a little shorter 

 than the mesothorax, finely and rather irregularly transversely 

 striated. Abdomen as long as the head, thorax and median segment 

 combined, nearly as broad as the thorax and tapering very slightly 

 at the extremities, deeply and rather sparsely punctured. Hypo- 

 pygium rather broad, produced slightly beyond the epipygiura, 

 subtruncate at the apex witli a strong, acute apical spine. 



Black ; the base of the mandildes, the clypeus, the pronotum 

 except a black triangular mark on each side, a large spot on the 

 mesonotum, the tegulfc, a large irregular spot on the mesopleuraj, 

 a large spot on the scutellum and a spot on each side at its basal 

 angles, a transverse line on the postscutellnm with a spot on each 

 side, two oblique bands on the median segment diverging from the 

 base, a broad band on each of the dorsal segments of the abdomen 

 interrupted in the middle, except the seventh segment, which is 

 wholly black, a small spot on each side of the first ventral segment 

 and an interrupted band on segments 2-5, the anterior and posterior 

 coxai beneath and a line on the anterior and intermediate femor ; 



