178 



C. B. HAHDENBERG. 



o. 2 between the two posterior ocelli ; seta o. 1 at about the 

 centre of the triangle formed by the o. 1, 5, and 6. 0. 5 

 crowded out behind o. 1 and 6. 



(i) Gular Region. — Grular puncture g. la and seta g. 1 

 situated straight behind o. la. 



Mandibles. — Mandibles rather large, projecting far 

 beyond the labrum, subquadrate, 5-toothed, the three first 

 teeth sharp, the second one the longest (without step, as in 

 A. junodi); the inner two small and blunt. Mandibular 

 setas md. 1 and 2 close together at end of lower fourth of 

 mandible (text-fig. 12, f). 



Antennae. — Short and thick, second joint about as broad 

 as long, third and fourth together shorter than the second. 

 No seta 1 on second joint could be found (text-fig. 12, i). 



Maxilla. — Maxillary lobes unequal; the median longer 

 than the lateral and curved laterally. First joint of palpus 

 with conspicuous sense-organ at base. Cardo large and long, 

 extending beyond the submentals (text-fig. 12, d). 



Labium. — With large acute triangular mentum. Sub- 

 mentum narrow, with cephalic angle very acute and caudal 

 margin short (text-fig. 12, c). 



Thorax and Abdominal Segments. — The arrange- 

 ment of the body setas corresponds with that described for the 

 first instar larva of Acanthopsyche junodi. Abdominal 

 and anal jDrolegs with sharply pointed hooklets, of half the 



