AGEILUS. 77 



bluish-green, and the impressions are not so distinct as in the female. The thorax is 

 not much broader in front than behind ; the two, rather deep, discoidal impressions 

 are not completely separated and form a figure of 8 ; the posterior ridge is well 

 denned and smooth, somewhat swollen anteriorly. The elytra are a little more olive- 

 green than the rest of the surface ; the purple colour is confined to the extreme apex 

 in the male, but extends some distance along the sides in the female ; there is a spot 

 of yellowish pubescence in a deep round impression at the base just within the shoulder, 

 a slightly elongate one near the suture before the middle, and a very small one near the 

 side, scarcely behind the middle ; and the apical third of the sutural impression is 

 clothed with pale yellow pubescence. The abdomen has a spot of yellowish pubescence 

 on the upperside on the margin of the basal segment (visible above, particularly in the 

 female), and similar elongate spots on the third, fourth, and fifth segments. The pro- 

 sternal chin-piece is distinctly emarginate. The sides of the sterna, the posterior coxae, 

 and the outer half of the metathoracic episterna are clothed with fine yellowish-grey 

 pubescence. 



The pubescence is generally paler (almost white) in the male. The prosternum in 

 the male is densely punctured and finely pubescent ; in the female it is more coarsely 

 punctured, the punctures more separate from each other, and there is no pubescence. 



39. AgriluS SOCialis. (Tab. IV. figg. 20, 20 a, b.) 



Supra seneo-viridis, subtus seneus, nitidus ; capite cuprascente, creberrime punctato, longitudinaliter impresso; 



tboraee tenuiter punctulato, transversim leviter bi-irapresso ; elytris crebre punctatis, maculis parvis aureo- 



flavis ornatis, apice serratis. 

 Long. 6^ lin. 



Hab. Guatemala, Cerro Zunil 4000 to 5000 feet (Champion). 



The head has the punctuation rather strong, the punctures close together on the face, 

 slightly separated on the vertex ; the impression in front is oblong-ovate, moderately 

 deep but not very well limited. The thorax is polished, the punctuation very fine and 

 indistinct on the disc, rather more distinct towards the sides ; the disc is transversely 

 impressed in front and behind ; the posterior ridge is curved, thickened at the base ; 

 there are slight coppery shades in some parts. The elytra have the subcosta well 

 marked ; the sutural area is densely and rather roughly punctured, the subcosta is 

 nearly smooth, the surface near the shoulder and immediately outside the subcosta 

 finely and not very closely punctured, the punctuation becoming closer and stronger at 

 the sides and apex ; each elytron has a very small golden spot just before the middle 

 (close to the suture), a rather larger one considerably behind the middle, and a small 

 one close to the apex. The prosternal process is shining, with some rather strong 

 punctures which are not very close together. The metathoracic episterna are rather 

 closely and finely punctured. The abdomen is very finely punctured, the punctures not 

 very close together. 



