3SH 
Mi^'laude Morley o??. the 
lower ; lower basal cell with an elongate, free anti simple nervure. 
Lower wing with the neuration of Ichneuraonidae excepting an 
elongate and basally pellucid additional nervure, between the median 
and radial; nervellus straight, opposite and not intercepted, with 
the wing margin cleft to near its junction with the posterior nervure 
and another very distinct incision at the humeral nervure, rendering 
the anal angle entirely lobate. Length, 10 mm. ^ $. 
A single example of each sex is all I have seen of this 
remarkable insect. The ^ (type) is in my collection, and 
was most kindly given me by Mr. O. S. Wickwar, of 
Colombo, who took it at Mankulam, in Northern Ceylon, 
during November 1908. The $ is in the Calcutta Museum, 
under Dr. Annandale’s care; it was captured at that city 
on August 9, 1907. 
My insect differs to an appreciable extent from the only 
previously described species of theRhopalosomidae R. poeyi, 
which was brought forward by Cresson (loc. cit. p. 59) in 
his paper “ On the Hymenoptera of Cuba,” and three years 
later by Westwood under the synonymous name 8 . aenig- 
matica in his paper {Joe. cit.) “Descriptions of New Genera 
and Species of Exotic Hymenoptera.” Therefrom the male 
of B. dbnen'mis differs in its posterior tarsi which bear no 
combing apparatus, and in having the calcaria equally long 
in both ; the hypopygium is retracted, and does not entirely 
conceal the base of the non-exserted valvulae, as is the case 
in the female R. poeyi, which also has the terebra slightly 
exserted, the spicula reflexed and exceeding the valvulae 
in length ; the basal segment is less elongate in B. ahnormis 
with the second not abruptly constricted and arcuate, 
though similarly (as in Tiphia) trans-strigose, basally ; 
the discal segments are equally emarginate, and the 
conformation of the metathoracic spiracles is alike in 
both, but I fail to discover any trace of distinct petiolar 
spiracles in R. poeyi. 
These points of divergence are drawn from the three 
female specimens of Cresson’s species in the British 
Museum, two of which were captured in St. Domingo by 
Mr. Tweedie (not Tweedy, as given by Westwood) and 
acquired in 1855 ; and the third, from Jamaica, ex coll. 
Gosse, was obtained in 1847 ; it is also known to occur in 
Hayti. The localities of the new species are consequently 
of great interest and show it to be widely distributed in the 
Oriental region. 
