642 C. B. HARDENBEUG. 



habit of the young larva of carrying its abdomen elevated at 

 nearly right angles, the point of flexion being at the juncture 

 of the third thoracic and first abdominal segments. Owiug 

 to the light ground colour of the body, the chitinised seti- 

 ferous plates on the abdominal segmeuts stand out clearly 

 and sharply defined. 



Durino-the first instar the head and thorax are of a uniform 

 colour without the distinctive pattern which is acquired in 

 the third and fourth instars. 



Head. — Width of headcase 0*45 mm. Adfrontals not 

 separated from parietals (text-fig. 1, b), front reaching to 

 two-thirds the distance to the vertex. Frontal punctures 

 high up, close together. Frontal setse placed above the 

 punctures, far apart and half-way up the front. Lower 

 adfrontal setre opposite frontal setse, upper adfrontals near 

 apex of front, adfrontal puncture near lower sette. Setse 

 1 and 3 of parietals rudimentary or absent, 2 below and 

 laterad of upper adfrontals. 



Antennae. — Second joint short, only slightly longer than 

 the third and fourth combined (text-fig. 1, c). 



Clypeus. — Not diiferentiated from the front (b), the setee 

 1 and 2 as usual near the distal edge, distance between them 

 about half of that between 1 of right and left side. 



Mandibles. — Short, sub-quadrate, with broad base, the 

 outer edge slightly concave and sub-parallel to the median 

 edge (e). Cutting edge armed with five teeth, the inner 

 three blunt, the others acute, the second tooth (from the out- 

 side) the largest and Avith a step on its outer surface. 

 Mandibular setas 1 and 2 close together and situated on 

 basal fourth of the mandible. 



Labrum. — Outer angles broadly rouuded, median notch 

 about one-third of the total height, tip of indentation acute 

 (i)). Setse 1, 2 and 3 in a line directed latero-cephalad, 4 

 and 5 sub-marginal, 6 not marginal but has moved up 

 towards 1 and is situated about in line with 1 and 5. 



Maxillae. — Cardo very small, triangular; stipes broad, 

 massive, the inner edge where it joins the mentum elongated 



