JRcport npoii Aculeate Hymeiioptcra. 251 



South Florida, but its much larger size, darker coloured 

 thorax, legs and abdomen, stouter antennoe, and perpen- 

 dicular radius, sufficiently differentiate the two. 



134. Blastophaga msularis, n. sp. 



$ . Length 1 mm. Polished black; head anteriorly and beneath, 

 the long facial impression, thorax at sides and beneath, the legs, and 

 the abdomen, except dorsally from the second segment, pale brownish- 

 yellow or honey-yellow. It also agrees with B. schtixn'zii in general 

 appearance, but besides its paler colour, it can be readily distin- 

 guished from it and from B. 'piceipcs by the following antennal 

 differences : The scape is strongly dilated and subtriangularly pro- 

 duced at the middle beneath ; the fourth joint and not the third is 

 produced outwardly at apex into a spine-like process, the four fol- 

 lowing joints being slender, cylindrical, while the last four are 

 enlarged and form a club, the joints of which are wider than long, 

 and beset with stiff bristles. 



St. Vincent. Described from sixteen ^ specimens, col- 

 lected by Herbert PI. Smith ; $ unknown. 



Genus Tetrapus, Mayr. 

 185. Tctrajius antillamm, n. sp. 



$. Length 25 mm.; ovipositor about the length of the abdomen. 

 Polished black, impunctate ; head beneath the eyes and anteriorly 

 beyond the insertion of the antenna, but not above the antenna; and 

 beneath wholly, flavo-testaceous ; scape, pedicel and ring-joint, the 

 tegulte, the pro- and meso-notum, metapleura, legs and venter 

 brownish-yellow ; flagellum brown, scarcely longer than the scape 

 pedicel and ring-joint nnited, subcompressed, tapering off at apex, 

 the joints a little wider than long. Scutellum dark rufopiceous. 

 Mandibular saws armed with a double row of teeth, the outer row 

 having about nine distinct teeth. 



St. Vincent. Described from one !^ specimen. 



Comes very close to 2\ amcricanvs, Mayr, specimens of 

 which are in my collection, through the kindness of Dr. 

 Mayr, but it is slightly larger and differently coloured, 

 with the teeth in the mandibular appendages less 

 numerous. 



