9656 Insects. 



Lophyrus corpore elongate in tnare nigro, nitido, ventris apice, 

 pedibiisqne mfcscentibus, antennis 23-articulalis ; corpore in 

 femina crassiore rufo, antennis medio et apice uecuon abdo- 

 minis dorso fuscescenlibus. 



On the 8lh of June, 1859, I received from my friend Mr. E. A. de 

 Roo van Westmaas some Lophyrns larva;, which had been found at 

 Velp on the common fir{Priii/s sylresiris). The following description 

 was written at the lime : — Length of the larva from 20 to 24 milli-^ 

 metres; head entirely shining jtitchy black ; the first segment at the 

 neck reddish white ; of this colour were also a line along the back and 

 another on either side of the body above the legs, as also the abdominal 

 and anal legs and the ventral sinface. Between these obscure white 

 Jines the tint is reddish dark gray, close to the lines the colour is 

 darker, that bordering the lines on the sides being almost black. 

 Below these lateral lines and above the legs the lint again becomes 

 dark gray: the last segment is very dark on the back, approaching 

 black, without, or with only obscure, markings, and beset with little 

 spines. There were twenty-two legs in all, the six thoracic legs being 

 shining black, with the depressions of the joints pale gray (see figs. 

 1 and 2). Each segment oi the body is divided into five folds, which 

 are of unequal width (fig. 3) ; on the first, third and fifth are some 

 gpinose points, as also on the transverse folds above the legs; the 

 stigmata are black. 



These larvaj were extremely slow in their movements, and remained 

 the whole day in nearly the same position ; they appeared to me to 

 feed only during the night. At first I fed them on leaves of Pinus syl- 

 vestris, but as 1 found it difficult to supply them with that food I gava 

 them leaves of the V/eymouth pine {Piiius strobus), which they ate 

 readily ; Ratzeburg also slates that they eat other species of pine. 

 After the last moult they were of an uniform pale gray without longi- 

 tudinal marks, the head being dark gray as far as the eyes, pale gray 

 further on. They pupized very soon after having assumed this ap- 

 pearance, and for this purpose made cocoons of a silver-while colour, 

 among the leaves, as shown at fig. 4, somewhat magnified. 



On the 9lh of June of the following year 1 received from my friend 

 Dr. Wtlewaal a whole box full of similar larvae; these were, however, 

 somewhat differently and darker coloured; they were also much more 

 lively, striking out both head and tail on being touched. The following 

 description will apply to ihe greater number of these larvge:— Head 

 entirely shining black, as if varnished; a line along the back and 



