BY AMBROSE QUAIL, F.E.S. (lONDOn). 91 



a slightly upward inclination. About half an inch from the 

 entrance was another bore, downwards, and again at the end of 

 the entrance burrow was another bore, downwards. These two 

 bores were 2^ inches long, and from the entrance to extremity of 

 the upward burrow Ih inches, altogether 6 inches of boring ^ 

 inch in diameter. The larva was situated in the second bore at the 

 extremity of the entrance burrow, and fitted tightly into the 

 caviiy. 



Turning now to the subject matter of this paper, the larval 

 structure. Larva half-grown length IJ inches, shape, tolerably 

 uniform, slightly tapering at anus, and two preceeding segments. 

 Colour, very like a strip of raw meat ; head very dark brown, 

 roughly striated ; pro-thorax dark red ; meso-thorax, red ; seg- 

 mental swollen areas pale flesh colour ; segmental incisions 

 deeply incised, composed of several small sub-segments, pinkish 

 red in colour ; tubercles pale brown, scarcely distinguishable 

 from the fleshy swellings apon which they are situated ; 

 spiracles, black rimmed ; hairs, dark brown ; legs, brown ;. 

 prolegs, pinkish. 



The head is flatter in front than the Porinas, more striated, 

 and has several fine hairs, the segments much more swollen 

 areas, especially dorsally. The positions of the spiracles, of the 

 tubercles, and the number of hairs upon them are the important 

 features in the larval structure for the purpose of classification. 

 Number of segments, 14, including the head. Lateral aspect 

 under 1 inch objective. 



Pro-thorax, dorsal plate {scutellum) scarcely distinguishable 

 from the fleshy segment. It has three single hairs on the anterior 

 edge, and in the middle of the lateral area of the plate is a 

 black concavity from within which rises a single hair. Below this 

 concavity is a single hair. The lateral edge curves upwards at the 

 posterior corner, and the spiracle is situate on the posterior area 

 of the segment within the curve of the dorsal plate. A large 

 anterior swelling above the leg has two hairs. The legs have 

 five hairs at, or above, the joints. 



Meso-thorax consists mainly of two large sub-segments 

 (and several small situate in the incision), each bearing one hair 

 on the dorso-anterior edge. On the posterior sub-segment is 

 another hair below, the middle of the ventral area is swollen 

 and has two remote hairs. Below is a large fleshy swellings 



