THE GENUS PISSODES. 55 



SECTION a2. 



Subsections b3 and b4. 

 (Species Nos. 15 and IG.) 



Adults. — Elytra with a transverse band of white and yellow scales 

 instead of a distinct spot near the vertex of the declivity; beak 

 shorter than the prothorax. Species 15 has a broad pronotum with 

 the posterior angles acute, while in species 16 the pronotum is narrow 

 and the angles subrectangular. 



Sexes. — Apical margin of seventh abdominal sternite of males not 

 sinuate; beak slightly longer and more slender in the females than in 

 the males. 



Pvpse. — Abdominal tergites without distinct small spines alter- 

 nating with the longer ones. Species 15 has distinct epipleural 

 spines, while species 16 does not. 



Larvse. — Eye spots distinct; apical tooth of mandible obtuse in 

 species 15 and acute in species 16. 



Hosts. — Species 15, Pinus; species 16, Pseudotsuga. 



Distribution. — Species 15, coast of California and Washington; 

 species 16, northern California into British Columbia. 



16. Pissod.es radiatae n. sp. 



(Platein, flg. 15.) 



The type specimen is labeled "Type No. 7435, U. S. N. M. ; name; 

 Pinus; Del Monte, Cal., Sept. 4, '02; A. D. Hopkins, collector; $4; 

 Ilopk. U. S. lOSOb." It was reared from a small branch of a trans- 

 planted small sapling of Pinus sylvestris, collected September 4, 1902, 

 in the grounds of the Del Monte Hotel at Del Monte, Cal. ; it was also 

 found in Pinus i^adiata, for wliich the species is named. 



Distinctive cliaracters. — This is a very distinct species, separated 

 from all other North American species by the acute posterior angles 

 of the pronotum. It comes nearer to P. notatus of Europe than to 

 any other foreign species, but from this s]:)ecies it is at once dis- 

 tinguished by the strongly elevated third and fifth elytral interspaces. 



Variations. — There is considerable variation in size, the length being 

 from 5.1 to 7.4 mm., but not much in color, markings, etc., of the 

 specimens from Monterey and Palo Alto, but the single specimen 

 from Easton, Wash., is small, dark brown, the punctures of the 

 elytra coarser, and the posterior angles of the i)ronotum very acute. 

 Further s])ecimens from this northern locality and more information 

 relating to their habit and host may show that the northern indi- 

 viduals represent a distinct species. More than 90 specimens have 

 been examined, including all stages and work. 



