1877.] MR. A. H. GARROD ON THINOCORUS AND ATTAGIS. 413 



and tarsi yellow. Abdomen ferruginous and shining ; the ovipositor 

 obscurely ferruginous, with the sheaths black and pubescent. 



Hab. Amazon valley. 



Collected by Mr. Henry Walter Bates. 



Bracon penetrator. (Plate XLIV. fig. 1.) 



Rufous, with the antennae, three basal segments of the abdomen 

 above, the posterior legs, and the sheaths of the ovipositor black ; 

 wings iiavo-hyaline, each having four black spots ; the head, thorax, 

 legs, and the apex of the abdomen pubescent. The head smooth 

 and shining ; the face with long thin fulvous pubescence ; the ante- 

 rior margin of the clypeus narrowly, and the tips of the mandibles, 

 black ; a small circular cavity on the vertex between the eyes, in 

 which the ocelli are placed, black. Thorax smooth, shining, and 

 impunctate ; the wings have a pale fuscous band on their apical 

 margins ; two blackish-brown spots at the anterior margin of the 

 fore wings, the first somewhat oblong-quadrate, covering the apex 

 of the externb-median and the base of the second discoidal cell ; the 

 second spot is quadrate and occupies the base of tlie marginal cell 

 and the apex of the stigma ; a third spot, irregular in shape, is 

 placed in the first discoidal cell; a fourth, larger, ovate spot is situ- 

 ated in the middle of the posterior wings ; the anterior wings have 

 also three minute paler spots, one in the second discoidal cell, a 

 second beneath the second submarginal, and a third in the second 

 submarginal cell ; the articulations of the joints of the posterior legs 

 are more or less rufo-piceous. Abdomen^ — the lateral margins of 

 the basal segment arc deeply longitudinally sulcate ; the middle of 

 the segment rufo-piceous ; the lateral raised margins of the two basal 

 segments are reddish-yellow ; the basal margin of the fourth segment 

 narrowly black ; the apical margins of the third and fourth segments 

 and the fifth and following segments rufous. Length of the body 

 9 lines, of the ovipositor 7 inches. (The figure is slightly enlarged.) 



Hab. Yokohama (Japan). 



Collected by Mr. Jonas. 



EXPLANATION OF PLATE XLIV. 



Fig. 1. Bracon penetrator J, p. 413. 

 2. BolichomituB longicattda J , 



p. 412. 

 2 a. Abdomen of Dolichomitiis. 



Fig. 3. Perissocerus plumicornis 5 > P. 

 412. 



3 a. Antenna of Perissocerus, mag- 

 nified. 



4. Mefo2nus sinensis 2, p. 411. 



5. Notes on the Anatomy and Systematic Position of the 

 Genera Thinocorus and Attagis. By A. H. Garrod, 

 M.A., F.R.S., Prosector to the Society. 



[Eeceived April 17, 1877.] 



Through the kindness of Mr. Edward Gerrard 1 have become 

 possessed of an adult specimen of Thinocorus runiicivorus, and of a 



