174 DE. Ii. O. HOWARD ON THE 



clavate ; scape nearly as hairy as flagellum ; pedicel long, slender, 

 three times as long as first funicle-joint ; funicle-joints subequal 

 in length, increasing slightly in breadth ; club ovate, wider than 

 terminal funicle-joint and nearly as long as two preceding 

 funicle-joints together ; thorax with sparse stiff black bristles. 

 General colour black, shining ; thorax above dark brown ; pro- 

 notum darkest, metanotuin lightest ; petiole light brown ; all 

 legs including coxae pallid, femora and tibiae a little darker in 

 the middle ; scape and pedicel pallid ; f unicle-joiuts darker, club 

 lighter; fore wings dusky, especially towards centre. 



One male, Balthazar, March 5, 250 feet. Probably generically 

 separated from Tetrastichus, but in the absence of the female it 

 is thought best not to erect a new genus. 



Gyeolasia, Foerster. 



GrTROLASIA CILIATA. 



Gyrolasia ciliata, Ashmead, Linn. Journ., Zool. xxv. p. 180. St. Vin- 

 cent. 



Three females, Balthazar, March 31, April 15, two at 300 feet 

 and one at 1900 feet. 



GyEOLASIA METALI/ICA. 



Gyrolasia metallica, Ashmead, Linn. Journ., Zool. xxv. p. 181. St. 

 Vincent. 



One female, Mirabeau estate, April 5, 400 feet, from herbage 

 about cocoa orchard. 



Gteolasia bicoloe. 



Gyrolasia bicolor, Ashmead, Linn. Journ., Zool. xxv. p. 180. St. 

 Vincent. 



Numerous male and female specimens, Chantilly estate, and 

 Balthazar, March and April, under varying conditions. 



Gteolasia elava, sp. n. 



2 . Length 9-5 mm. ; expanse l'7mm. Scape slender, pedicel 

 very short : funicle-joint 1 three times as long as pedicel, joints 

 2 and 3 subequal to 1 \ club attenuate ; thorax faintly shagreened; 

 abdomen long, pointed, as long as head and thorax together. 

 General colour bright yellow ; funicle-joints 1, 3, and club black ; 

 the six principal pilif erous spots also black (four on mesoscutum 

 and two on scutellum) ; abdomen dark yellow, segments with 

 brown borders, pygidium black; all legs honey-yellow; wing- 

 veius dark brown ; eyes dark red. 



