CHALCIDID.E OF THE ISLAKD OF GRENADA. 141 



than one-tliird. longer than scape ; first funicle-joint closely 

 joined to pedicel ; club as long as three preceding fa aide-joints 

 together. Pro- and mesonotum smooth, sliiuing ; scutelluni with 

 no transverse row of punctures ; metauotum finely punctate at 

 border, disc with a double row of punctures confluent behind. 

 Petiole a little longer than hind coxae, longitudinally aciculate. 

 Colour black ; tarsi whitish. 



One female, Balthazar, March 5, 250 feet. Closely related to 

 iS. drosophila, Ashm., from Florida. 



Subfamily Pteromalin"^. 



Tribe Ghiropachides. 



AcEOCORMUS, Foerster. 



ACEOCOEMTJS ME&ASTIGMTJS. 



Acrocormus megastigmus, Ashmeacl, Linn. Journ., Zool, xxv. p. 155 

 (St. Vincent). 



One female, March 31 (Grand Etang), 1900 feet, on foliage 

 near the ground, near water, damp. 



Tribe Sphegigastrides. 

 SxNTOMOPUS, Walker. 



Stntomopits iiiTcisoiDEUS, n. sp. 



5 . Length 2*2 mm. ; expanse 3'6 mm. Head broader than 

 thorax, oval from front, narrowly ellipsoidal from above ; face 

 plainly carinate below insertion of antennae ; ocelli forming a 

 very obtuse-angled triangle, the lateral ones dividing the space 

 between eyes into three equal parts ; genal sulcus faintly indi- 

 cated at border of eye. Antennae inserted somewhat below 

 middle of face, short; scape slender, not reaching to middle 

 ocellus ; funicle-joints transverse, except first, which is somewhat 

 longer than broad ; flagellum as a whole subclavate, club obtusely 

 rounded. Thorax rather flattened above ; metanotum with a 

 complete central longitudinal carina, lateral carinas distinct; 

 petiole with two delicate longitudinal carinae ; abdomen behind 

 petiole with a strong, large, oval depression. Head and thorax, 

 including metanotum, all pleura, bases of coxae, and petiole of 

 abdomen closely punctate ; abdomen smooth, shining. General 

 colour metallic green, somewhat aeneous on mesoscutum and 

 scutellum, bluish on pleura and petiole ; antennal scape brown, 



