PROCEEDINGS OF THE NATIONAL MUSEUM. 125 



Genus AM PH I BOLI PS, Rheinhardt. 



21. AMPHIBOLIPS TINCTORI.(E, new species. 



(rail. — A coiiipiessed ovate, brownish yall, the 0])posite sides of whicli 

 are keeled; tlie shell is moderately thick, and internally there is a 

 central kernel held in place by fibrous filaments. Length, 2 cm,, 

 diameter less than 1 cm. 



Gdllf}}/. — Female. Length, 4.0 to 5 mm. Black, the antenme and 

 abdomen beneath dark brown, apex of the sec()n<l segment and a[)ices 

 of the short segments brown ; legs reddish yellow. 



Antenme 13-jointed; head rugose; thorax striate- rugose, in one speci- 

 men distinctly longitudinally striated; in the other the striie are often 

 obli(i[ae and irregular; parapsidal grooves obliterated by the rugosities, 

 or only slightly indicated anteriorly; scutellum coarsely rugose, with 

 two large deep fovea? at base, separated by a carina. Mesopleura 

 lugose, usually hairy, one specimen with a rased smooth s])ot. Wings 

 hyaline, veins distinct, dark brown, the areolet large, the cubital cell 

 closed, the vein at base of radial cell angulated and inclosed in a brown 

 blotch. 



Type.— 30Hy, U.S.N.M. 



Two specimens, reared October !(>, 1871. Locality unknown. The 

 Note Book says : 



Found in November, 1870, by L. G. Suffer, under Qiiercus coccinea var. trincforia, a 

 curious gall of same structure as 415, but with two cariuated sides and with thicker 

 Avails. 



This species approaches nearest to A. spongifiea., Osten-Sacken, but 

 the peculiar striated rugose thorax readily distinguishes it from that 

 si)ecies and all others in the genus, except the dimorphic form .1. avicu- 

 lata, Osten-Sacken. 



22. AMPHIBOLIPS TRIZONATA. new species. 



(hill. — A large, globular gall, from an inch to an inch and a quarter 

 in diameter, externally resembling A.coccinea', Osten-Sacken, but inter- 

 nally of a, white, pithy, cellular structure. 



Galljly. — Male and female. Length, 5 to G mm. Entirely black, 

 antenna?, face, tibia% and tarsi dark brown; ocelli red. 



Head and thorax coarsely rugose. Antenna^, in female, short, 13- 

 ointed; in male, longer, 15-jointed. Eyes prominent. Parapsidal 

 grooves entirely wanting, except the two short anterior median grooves 

 and the groove on the shoulders. Scutellum very coarsely rugose, the 

 fovea? at base large, distinct, and confluent, separated only by a slight 

 carina. Abdomen globose, polished, the apical portion of the second 

 and following segments finely punctate. 



Wings hyaline, with three transverse, smoky bands, the one at the 

 base not as distinct as the one across the middle and the one at the 



