70 Rev. T. A. Marshall's monograph of 



wings. The name Heterospilus must therefore be elimi- 

 nated from every work on European insects where it 

 occurs, and Doryctes substituted instead, according to 

 the author's intention. At the same page 46, for Sp. 4. 

 H. D. striatcUus, and Sp. 5. H. D. Imperator, read R. D. 

 strintellus, and li. D. Imperator. In Fdrster's Synopsis 

 (Verb. pr. Rheinl., 1862, p. 239) all that relates to 

 Heterospil'us, " $ H. Fl'dgel mit einem Randmal," &c., 

 must be struck out. 



Eeinhard has described 13 species of Doryctes, para- 

 sites of the CeranihycidcB, Buprestida, Anohiidce, and 

 Curcidionid(E. The four British species are very rare. 



(2) 1. Second abdominal segment smooth . . 1. imperator, Hal. 

 (1) 2, Second abdominal segment striolated. 



(4) 3. Abdomen (excejjt the first segment) bright 



testaceous . . . . . . . . 2. Hcydenii, Eeinh. 



(3) 4. Abdomen fuscous or piceous. 



(6) 5. Vertex and thorax granulated, obscure, 



with fulvous pubescence .. ..3. siMthiiformis, Ratz. 



(5) 6. Vertex and thorax mostly shining, with 



very few hairs . . . . . . . . 4. striatellus, Nees. 



1. Doryctes imperator, Hal. 



Doryctes imperator, Hal., Ent., Mag., iv., 46, ? . 



Ischiogonus zonatiis, Wesm., Nouv. Mem. Ac. Brux., 

 1838, p. 127, ? . 



Bracon prcecisus, Eatz., Ichn. d. Forst., iii., 36, ? . 



Doryctes imperator, Eeinh., Berl. ent. Zeit., 1865, 

 p. 247, <? ? . 



Pitchy-black ; antenuse at the base, mouth, and legs, rufo-testa- 

 ceous ; tibiae at the base, and palpi, pale ; 2d abdominal segment 

 of the ? piceo-rufous ; wings subhyaline ; vertex smooth and 

 shining : sides of the mesothorax smooth, with an elongate crenate 

 impression ; 1st abdominal segment striolated, the rest smooth ; 

 terebra $ as long as, or longer than, the body. $ J . Length, 

 2^: — ^\ lines; wings, 4^ — 6| lin. 



Var. 1,5. Abdomen entirely rufous or rufo-testaceous. 



Var. 2, $ . Head and abdomen piceo-rufous. 



Var. 8, ? . Piceo-testaceous, the head piceo-rufous. 



Head rugulose in front, vertex convex, smooth, and shining; 

 antennae as long as the body, in one 5 29-jointed ; mesothorax 

 finely granulated, with rugulose sutures, somewhat shining ; meta- 

 thorax elongate, with five areas, the two anterior granulated, almost 

 obscure, the medial area narrow, rectangularly produced in front, 



