292 Philippine Journal of Science 1919 



full-grown larva. It is quite devoid of hairs, cilia, spines, or 

 roughened or chitinized areas of any kind. Its skin is micro- 

 scopically shagreened. 



ADULT 



The description of the adult is translated from Kerremans's 

 original. 



Endelus bakeri sp. nov. 



Of the group of E. weyersi Rits. and modiglianii Kerrem. related on 

 account of the head and prolongation of the ocular tubes [cones] to E. dia- 

 bolicus Kerrem., but diifering from that species by the elytral impressions 

 and by the general coloration. 



Short, pentagonal, entirely more or less bright bronze above; beneath 

 almost black. 



Head wide, deeply excavated; eyes protruding very much ectad, emerging 

 from short truncated tubes [cones] ; the surface almost glossy and very 

 lustrous. Pronotum very much wider than long, short and stout, truncated 

 cephalad with the anterior angles sharp and projecting, the sides widely 

 arched cephalad and sinuous caudad with the posterior angles obtuse; the 

 middle of the disc with two wide transverse carinae. Scutellum small, 

 triangular. Elytra short, stout, protruding at the shoulders, sinuous along 

 their sides, attenuated caudad, individually widely rounded at their apices 

 and minutely denticulated; the surface wavy and unequal, with wide 

 lateral and discal impressions which are rounded, except those along the 

 suture, on each side of the apex, which are elongated. Beneath smoother 

 and more shiny than the elytra. 



Length 3.5-4; width 1.25-1.5 mm. 



Luzon, Los Banos. 



These beautiful little purplish bronze beetles are especially 

 noticeable by reason of the prominent, almost stalked eyes and 

 the consequent excavation of the front of the head. The elytral 

 undulations add to the brilliancy of the metallic color of which 

 the legs, especially the femora, partake in a marked degree 

 (Plate II, figs. 1, 5, 7, 10). 



They remain for a certain period within the pupal skin after 

 having apparently acquired all adult characters, including 

 hardening and brilliancy of the integument, and for a some- 

 what shorter period in the mine. They fly rapidly, alighting 

 after brief flights and running quickly over the leaf. Their 

 copulation has not been observed nor has the egg-laying process 

 been noted. 



MINES 



The eggshell can always be found at the beginning of the 

 mine, which for a distance of 12 to 15 millimeters is narrow, 

 usually not over 2 millimeters in width, and follows the leaf 

 veins. It may then turn at an obtuse angle, continue for 15 



