154 Eev. T. A. Marshall's monograph of 



Shorter and stouter than Euhadizon. Labial palpi triarticulate. 

 Abdomen oblong or ovate, not longer than the thorax ; usually 

 only 3 segments visible above in the $ , the rest retracted or very 

 short ; suturiform articulation obsolete, so that segments 2 — 3 

 appear as one elongate segment ; in the $ the 4th and following 

 are less completely concealed ; 1st segment broad, conical, trun- 

 cate, not or hardly longer than its aj)ical breadth ; tubercles 

 medial. Legs shorter than in Euhadizon, the hind pair incrassated. 

 Terebra exserted. 



Head broader than the thorax, not much narrowed behind the 

 eyes ; vertex transverse ; occiput distinctly margined ; maxillary 

 palpi 6-jointed, the 4th joint longest ; labial palpi consisting of 

 3 equal joints. Mesothorax elevated, gibbous, its sutures distinct. 

 Abdomen, 2 , appearing biarticulate ; segment 1 rimulose ; 2 — 3 

 connate, and concealing the rest, not margined, smoothly reflexed, 

 so as to cover the sides and unite in a carina in the middle of the 

 belly ; the truncate extremity of the 3d leaves a large posterior 

 cavity within which the remaining segments are withdi'awn ; from 

 the centre of this cavity proceeds the terebra of the J , and the 

 apex of the sexual organ of the (^ ; in the latter the posterior 

 segments are visible above in the form of 2 or 3 narrow rings 

 beyond the edge of the 3d segment ; rarely this is also the case in 

 the 5 . Only the 1st segment of the $ is margined at the sides 

 beneath ; in the ^ sometimes the base of the 2d is also margined. 

 For the distinction between this genus and Sigalphus, see Trans. 

 Ent. Soc. Lond., 1885, p. 104. 



Of the Braconids described by Nees v. Esenbeck, only 

 Sigalphus fasciatus (Mon,, i., 269) and perhaps Euha- 

 dizon macrocephaliis (Mon., i., 234) belong to this genus. 

 Haliday first established Caliiptus with 3 species, in- 

 cluding Sigalphus fasciatus. In the same year appeared 

 Wesmael's Brachistes with 4 species, one of which is 

 identical with a species of Haliday ; a 5th species 

 was added in 1838 by Wesmael in his Supplement. 

 Eatzeburg, in the Ichn. d. Forst. (1844 — 52), increased 

 the number of species to 14, one of which is identical 

 with a species of Haliday, and another, Brachistes fagi, 

 Eatz., belongs to the genus Sigalphus. Eeinhard 

 informs us that Euthe almost completed a MS. mono- 

 graph of these insects ; it has never been published 

 in extenso, but a synoptical table by Eeinhard, with 

 diagnoses of some new species, appeared in the Berl. 

 ent. Zeit., 1867, pp. 369—374. 



