INSECUTOR INSCITI^ MENSTRUUS 115 



dorsal edge of caudal coxa at apex, same of hind femora for 

 nearly their entire length and the tarsi. Abdomen orange yellow 

 except at base above moderately narrowly, a narrow, dorsal 

 metallic cross-stripe over halfway to middle from this, a short 

 diamond-shaped spot at middle, a long-cuneate spot between 

 this and apex and covering the dorsum, and the apex rather 

 broadly. Propodeum orange yellow except the disk between 

 the spiracles obtusely triangularly nearly to apex. Postscutel- 

 lum and the scutellum lemon yellow but on the basal half of 

 the latter is a metallic triangle whose apex is a little beyond 

 the middle and whose base reaches from margin to margin at 

 base of the scutellum. Thorax just cephalad of the caudal 

 coxse, lateral aspect, also orange as well as the sclerite laterad 

 of the postscutellum. Scutellum with four large bristles, naked 

 otherwise. Tegulse lemon yellow. Black setse on hind tibiae 

 (dorsal aspect) arranged in three wavy parallel lines but near 

 apex, two come together. Fore wings subhyaline. Head with 

 the usual punctures. Mandibles 6- and 7-dentate. Funicle 1 

 over twice longer than wide, longer than the body of the scape, 

 3 twice longer than wide. Abdomen acuminate. 



One female reared from Lithocolletis guttifimitella, Dis- 

 trict of Columbia, August 28, 1898 (Aug. Busck). 



Type, Cat. No. 20469, U. S. Nat. Mus., the female on a tag, 

 a head on a slide. 



A second female had the marking on the scutellum less acute 

 at apex and the second marking on the abdomen absent. A 

 third female from grass, Glenn Dale, Maryland, September, 

 1916, and several more some days later in a like situation. A 

 common species, to all appearances. 



Gonatocerus marilandicus, new species. 



Female. — Of moderate size for the genus. Characterized 

 by having the normal abdomen pale yellow marked with four 

 distinct black cross-stripes above and a pair of dorsal dots near 

 apex, the first cross-stripe well out from base, 4 as far from 

 apex as 1 is from base, 3 and 4 closer together than 1 and 2 ; 

 venter of abdomen distad on each side of meson black as are 

 also the antennse, the long bulla paler. Legs black except 



