A. A. GIRAULT, 49 



There is no sexual color dimorphism ; the coloration of the speci- 

 mens is fuscous or brown, the legs, antennae and venation being some- 

 what clearer, the tibiae and tarsi usually pallid but not abruptly so, 

 there being no marked contrast in colors ; the fore wings are slightly 

 infuscated at their proximal halves as in niiniituni and tljiey bear about 

 the same number of longitudinal lines of discal cilia as in that species, 

 and about the same number of discal cilia in the oblique line running 

 back from the stigmal vein, namely, usually 5, but ranging from 4 to 

 6* ; the venation of the fore wing is not different from that in the 

 type species nor is the marginal ciliation, though usually here the 

 fringes are somewhat longer and less abruptly, more gradually change 

 in length from the cephalo-distal margin to the caudo-distal margin ; 

 but in niinuttirn also this change is gradual but, in general, less so than 

 in this species. The discal ciliation of the posterior wing differs from 

 that of niinutmn but very slightly, the cephalic and posterior longitu- 

 dinal lines having a tendency to be longer by one cilium but this is 

 not a reliable differentiating character. The antennae of the female 

 are similar to those of niinutum as are those of the winged male similar 

 to those of the male of miniituni, but those of the wingless male are 

 quite different from any known male antenna of the genus being very 

 similar to those of the female but the club-joint has parallel sides and 

 is relatively longer, not obliquely truncate along one side of the apex 

 as in the female. The tibial spurs are single, apparently absent on the 

 cephalic legs and inconspicuous on the intermediate legs; the tarsal 

 joints of the wingless males are noticeably different from those in the 

 winged forms, both males and females, being much shorter especially 

 in the cephalic and intermediate legs. The mandibles are tridentate. 

 The figures of the species given by Aurivillius are as correct as draw- 

 ings will allow, with the exception noted above. 



These descriptive notes were taken from the specimens 

 before mentioned on two slides labelled in the handwriting of 

 Aurivillius as follows : " Oophthora semblidis Auriv. Blido, 

 1896." and consisted respectively of 3 apterous males, 1 

 alate male, 15 females and 3 apterous males, 1 alate male 

 and 14 females. They were obtained through the ready 

 kindness of Dr. L. O. Howard to whom they were sent by 

 Aurivillius. I have found other specimens on a slide also 

 obtained from the collections of the National Bureau of En- 

 tomology through Doctor Howard and labelled " Tricho- 

 granima minuhim Riley. Egg-parasite of Chauliodes. July 



* In the right fore wing of one specimen I have seen as many as 7, 

 which number was sufl&cient for the line to reach the discal ciliation ; 

 the left wing had but five. 



TRANS. AM. KNT. SOC. , XXXVII. (7) 



