C8 i\ev. T. A, Marshall's monograph oj 



testaceous ; mesothoracic sutures obsolete in the middle of the 

 disk, being merged in a punctulate, obscure space before the 

 scutelluui ; metathorax and abdomen smooth, the latter sub- 

 compressed, convex above, as long as the head and thorax; 2d 

 segment short, i as long as the 1st, with two lateral impressed 

 lines, curved forwards and uniting to enclose a semicircular space ; 

 od longest, the rest decreasing in length to the apex ; articulations 

 of the legs subferruginous. 



The ^ is similar ; antenna; 40 — 47-jointed, testaceous at the base 

 beneath ; the black facial spot often reduced to a narrow line ; 

 sometimes there is a black hne on the occiput ; prothorax naore or 

 less testaceous at the sides ; fore coxje and femora, and articulations 

 of the tarsi, more or less testaceous ; apical segments of the 

 abdomen often infuscated ; wings paler than those of the J . 



Described from three mutilated specimens, a male and 

 three females, given to me long ago, which agree well 

 with Wesmael's description taken from 16 females and 

 18 males, except that he considers black to be the pre- 

 dominant colour of the head, while in the British 

 examples testaceous is more prevalent. 



Probably this is the species which Curtis (Guide, 2d 

 ed., column 115) referred to Bracon initiator, Fab., and 

 of which a pair exists in the Stephensian collection 

 in the British Museum. The true initiator is similar, 

 but more than twice as large, with darker wings, and 

 49 — 54-jointed antennae, a parasite of Ehagiuni indagator, 

 Fab., and Astynoinus cedilis, Lin. If British, it is most 

 likely to be found in Scotland. 



C. scolgticida is a parasite of Scolytus destructor, 01., 

 and has been reared abundantly by Eadzay and Wiss- 

 mann, according to Eatzeburg. See Wesm., Bull. Ac. 

 Brux., 1838, p. 220, and Guerin-Meneville, Bull. S. E. F., 

 1846, p. Ixxviii., on the services rendered by this insect 

 in keeping down the numbers of the Scoli/tus, and 

 Giraud (Bull. S. E. F., 1872, p. x.) on the ju-obable 

 parasitism of this or an allied species on Bostri/cJius 

 tiipographus, L. The " i>. initiator," bred by Ferris 

 from Pissodes notatiis, Fab., is doubtless referable to 

 this species. 



2. Cceloides melanotus, Wesm. 



Ca'loidcs melanotus, Wesm., Nouv. Mem. Ac. Brux., 



1838, p. 61, <? ? ; Eatz., Ichn. d. Forst., iii., 40, <? . 



Testaceous, smooth and shining; antenna) black, except at the 



base; head, thorax, and abdomen black above; wings subl'uscous, 



