106 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.39. 



at the apex; head somewhat broader behind the eyes; ocellar basin 

 poorly defined, the lateral walls subparallel; an elongate fovea in 

 front of the anterior ocellus; middle fovea not sharply defined, 

 spreading over the antennae; frontal crest unbroken; postocellar 

 furrow drawn down by the furrow from the anterior ocellus ; antennae 

 not quite as long as the insect, the third and fourth joints equal: 

 thorax shining, almost impunctate; suture in front of the scutelhun 

 deep and well defined, sharply angled; stigma hardly twice as long 

 as wide at the base, tapering to the apex; sides of the third cubital 

 cell parallel; hypopygidium of the short type, rounded at the apex. 

 Black; antennae beneath rufoferruginous ; tegulae pale brown; legs 

 below the trochanters except the darkened apices of hind tibiae and 

 tarsi ferruginous. Wings hyaline, iridescent; venation black, stigma 

 brownish-yellow. 



The posterior tibiae are sometimes pallid, and there is sometimes a 

 pale brown spot at the apex of the hypopygidium. 



Type-locality. — Konosu, Saitama, Japan. Four males collected 

 April 18, 1909, on foliage of Almis by Mr. T. Fukai. 



Type.— Cat. No. 13320, U.S.N.M. 



PRISTIPHORA INSULARIS, new species. 



Related to P. alnivora Hartig, but differs in a number of ways 

 from that species. 



Female. — Length 5.5 mm. Head rather closely granular all over; 

 antenna! foveae small; antennal furrows wanting; middle fovea 

 rather poorly defined, elongate; ocellar basin wanting; postocellar 

 area poorly defined laterally, about four times as wide as the ceplial- 

 caudad width; postocellar furrow well defined; postocellar line 

 longer than the ocellorbital line; third antennal joint slightly longer 

 than the fourth; dorsulum shining with poorly defined, scattered 

 punctures; stigma robust, widest at the base; third cubital cell but 

 little wider at apex; upper discal cell exceeding the lower on the 

 outer margin; sheath robust, obtusely pointed, the lower margin 

 emarginate; saw with rather small, regular, obtusely pointed teeth. 

 Black; labrum, mandibles (apices piceous), angles of pronotum, 

 tegulae, legs below middle of coxae, except the apices of femora tibiae 

 and tarsi which are dusky, yellowish; wings hyaline, iridescent; 

 venation brown. 



Type-locality. — Japan. One female. Collector unknown. 



Tyj)e.— Cat. No. 13321, U.S.N.M. 



NESOTOMOSTETHUS, new genus. 



Type of genus. — Blennocampa religiosa Marlatt. 



Robust species. Malar space very narrow, almost wanting; clypeus 

 nearly truncate; posterior orbits broad; lateral ocelli on the supra- 

 orbital line; antennae not hairy, of the normal Blennocampine type, 



