122 INSECUTOR INSCITlit MENSTRUUS 



Lobopterom^ia Venitalis is the true producer. The larva described as 

 that of the last-named species may belong to this form. The gall is 

 locally very abundant at Nassau. 



Gall : Length, 1 .5 cm. Greenish white, hollow, pouch-like vein 

 swelling the size of a buckshot and on the underside of Crat&gus leaves. 



Female: Length, 2 mm. Antennae nearly as long as the body, 

 sparsely haired, probably light brown ; 1 4 segments, the fifth v\dth a stem 

 three-fourths the length of the cylindric basal enlargement, which latter 

 has a length thrice its diameter and sparse basal and subapical whorls of 

 long, stout setae ; terminal segment slightly produced, the basal enlarge- 

 ment with a length over three times its diameter and apically a stout, 

 setose, fingerlike process. Palpi : First segment short, irregular, the sec- 

 ond with a length four times its diameter, the third a little longer than the 

 second, the fourth one-half longer than the third. Mesonotum probably 

 dark brown, the submedian lines yellowish. Scutellum and postscutellum 

 probably yellowish, the abdomen presumably a light fuscous yellowish. 

 Wings hyaline. Halteres, coxae, and legs pale straw ; claws slender, 

 strongly curved, unidentate, the pulvilli rudimentary. Ovipositor nearly 

 one-half the length of the abdomen, the terminal lobes narrowly fusiform, 

 with a length over three times the diameter and sparsely setose. Type 

 Cecid a I 128. 



Diadiplosis buscki, new species. 



The species described below was assembled under a lot labeled 

 " Diplosis coccidarum Ckll., Porto Rico, August Busck, 339.^"'* and 

 evidently had been reared from some scale insect. This species is quite 

 different from D, cocci Felt. 



Male : Length, 1 .5 mm. Antennae probably longer than the body, 

 sparsely haired, light brown ; 1 4 segments, the fifth having the stems 

 with a length one-third and one-half their diameters, respectively, the 

 distal enlargement one-fourth greater than its diameter, and a distinct 

 constriction at the basal third ; circumfili short, heavy, each filum having 

 approximately 1 5 loops. Palpi : First segment short, irregular, the sec- 

 ond with a length three times its diameter, the third a little longer, the 

 second more slender. Mesonotum reddish brown. Scutellum a little 

 lighter, postscutellum yellowish. Abdomen dark brown, a variable yel- 

 lowish basally and apically. Halteres yellowish basally, fuscous apically. 

 Wings hyaline. Legs a variable fuscous straw, the tarsi darker. Claws 



