DEYINUS. 445 



metanotum coarsely longitudinally striolated, the striae almost running into reticula- 

 tions ; metapleurae punctured, the punctures running into striations. Abdomen 

 smooth, shining, shorter than the thorax. Wings as in B. maculicornis. 



Apart from the difference in the coloration of the legs and antenna?, D. alticola is 

 separated from D. maculicornis by the vertex being scarcely depressed, and the 

 prothorax above distinctly separated into a lower anterior and a raised posterior part ; 

 and also by the longer metathorax and the stouter antennae. 



The group of D. kuficeps. 

 Vertex slightly depressed; occiput almost transverse; anterior ocellus considerably 

 in front of the posterior ; eyes converging in front ; third joint of the antennae 

 more than double the length of the first, the latter a little longer than the fourth ; 

 third joint of the anterior tarsi longer than the fourth ; prothorax bluntly keeled in 

 the centre above ; parapsidal furrows obsolete. 



3. Dryinus ruficeps. (Tab. XIX. fig. 7.) 



Rufus, medio antennarum, meso-, metathorace coxisque posticis nigris. 

 Long. 7 millim. 



Hab. Panama, Bugaba (Champion). 



Antennae inserted in the lower third of the head ; the joints becoming slightly 

 thickened from the fifth ; the third joint as long as the following three joints together ; 

 the fourth joint a little longer than the fifth, the latter being longer than the sixth ; 

 the apical joint one half longer than the preceding. Head longitudinally striated ; 

 behind it is but slightly convex ; front excavated ; eyes converging anteriorly ; the 

 orbits of the eyes with short pale hair ; the two posterior ocelli situated at the extreme 

 rear, the front ocellus larger and placed at a considerable distance from them. Prothorax 

 half the length of the mesothorax, bluntly and roundly ridged in the back and with a 

 fine keel in the centre ; the back transversely striated, the sides obscurely rugose ; its 

 apical margin is whitish-yellow. Mesothorax coarsely rugose ; in front is a smooth, 

 impunctate part, narrower and flatter than the rest and separated from it by a ridge ; 

 scutellum raised, separated from the scutum by a wide, nearly straight, groove ; pleurae 

 densely covered with long white pubescence. Metanotum separated from the meso- 

 notum by a slightly curved furrow ; behind this furrow is a more distinctly curved and 

 deeper one ; the metathorax is rugosely reticulated, and behind it is closely covered 

 with white pubescence which hides the reticulations. Wings : there is a rather long 

 mark at the base of the costal cellule, a narrower one at the end of the discoidal cellule 

 (stretching nearly across the wing), and a broad one at the stigma. 



An example probably referable to the same species has the tibiae inclined to white in 

 front and lined with black behind, and the abdomen with three broad black bands. 



