IN THE BELGIAN CONGO. 117 



Family Lamiidae. 

 By C. J. Gahan, M.A., D.Sc. 



Tragocephala maynei, sp. nov. 



T. nobili (Fab.) affinis, sed differt capitis medio haud vittato, elytris prope basin non 

 transversim fasciatis. Capite inter antennas sat lato fere piano, margine antica 

 frontis genarumque et macula pone oculum coeruleis ; prothorace utrinque ante 

 tuberculum lateralem ochreo-fulvo fasciato, basi lateraliter coerulescente ; elytris 

 nigro-velutinis, utrisque maculis quatuor ochreo-fulvis notatis : macula prima ad latus 

 paullo pone humerum, secunda transversa et tertia parva rotunda obliquiter positis 

 pone medium, quarta transversa paullo ante apicem ; macula infra humerum, 

 puncta postero-laterali, et macula minuta ad suturam vix ante apicem coerules- 

 centibus ; corpore inf eriore pedibusque coerulescentibus, nigro fasciatis et maculatis ; 

 antennis ( $) paullo pone medium elytrorum transeuntibus, scapo ad apicem angustim 

 cicatricoso ; prosterno sat lato, antice verticali et transversim truncato, mesosterno 

 antice late rotundato ; f emoribus brevibus subclavatim incrassatis. 



Long., 20 ; lat., 7 mm. 



This species is nearly related to Tragocephala nobilis, Fab., with which it agrees in 

 general form and structure, the only difference noticeable in this respect being the 

 somewhat broader intercoxal process of the prosternum in the present species. It 

 differs however in markings ; the head is without a median band, the genae and front 

 are bordered below with greyish blue pubescence and there is a patch of the same 

 colour behind each eye ; the prothorax is banded at the sides as in T. nobilis, but 

 with the band in front of the lateral tubercle more ochreous or brownish in colour ; 

 the elytra are marked each with four ochreous tawny spots — one at the side a little 

 behind the shoulder, two placed obliquely a little behind the middle, and the fourth 

 transversely a little before the apex ; each has, in addition, a bluish spot below the 

 shoulder, a blue lateral speck at about one-fourth from the apex, and a speck on the 

 suture just before the apex. Body beneath and legs glaucous blue, banded with 

 black. 



Exocentrus ortmansi, sp. nov. 



Niger sat dense griseo-pubescens, antennis dense setosis quam corpore paullo 

 longioribus, articulis ab 3° cinereo anguste annulatis ; prothorace transverso, spinis 

 lateralibus pone medium positis, retro directis ; elytris nigro-setosis, setis in seriebus 

 octo utrinque ordinatis, interstitiis bi- aut uni-seriatim sed haud regulariter punctatis, 

 punctis post medium evanescentibus. 



Long., 6 ; lat., 2 5 mm. 



Black, with a rather dense covering of grey pubescence. Antennae a little longer 

 than the body, black with a rather dense fringe of black setae beneath, the joints from 

 the 3rd narrowly ringed with grey at the base. Prothorax with a few scattered black 

 setae, lateral spine placed behind the middle, and directed towards the shoulder of 

 the elytron. The elytra, seen in certain lights, exhibit a faint brownish band behind 

 the middle ; each has eight longitudinal series of black setae, and on the basal half the 

 intervals between the rows of setae are punctured in rather irregular rows, the rows 

 in some parts being double and in others, especially farther back from the base, single. 



