365] LARVAE OF THE TENTHREDINOIDEA—YUASA 47 



and a few setae; larvapods well developed, distal surface incurved mesad, 

 rather dilated, not pointed, distance between the pair at the base less 

 than the length of larvapod, venter with four annulets; tenth abdominal 

 tergum gradually convex, with glandubae; anal setae numerous, small; 

 spiracles elongate and oblong. 



SPECIES OF NEODIPRION 



1(10) Head black, light grayish or brownish, never uniformly reddish brown or orange; 

 body longitudinally striped or spotted 2. 



2(3) Body with four longitudinal rows of black spots along subdorsal and supraspiracular 

 lines; tenth abdominal tergum with cephalic two-thirds entirely black; spots on each 

 side of dorso-meson elongate, wider at cephalic end; spots on supraspiracular line 

 large, subquadrate; spots onprothorax obsolete; body yellowish white; length, 22 mm. ; 

 on Pinus; Y-221, G-573, C-l, 1-4101 abbotii Leach. 



3(2) Body without four longitudinal rows of black spots along the subdorsal and supra- 

 spiracular lines, but with longitudinal colored bands along each side of the dorso- 

 meson; latus with longitudinal row of independent segmentally arranged blackish 

 or brownish spots or with continuous brownish bands 4. 



4(5) Body with a row of brownish spots along supraspiracular lines, spots segmentally 

 arranged, one on each segment, often those on middle segments obsolete, sometimes 

 all spots obsolete; tenth abdominal tergum with a pair of large blackish or brownish 

 spots which are all sometimes contiguous on meson; subdorsal bands narrower than 

 the distance between them; larvapods marked faintly along pedal line when supraspir- 

 acular spots are distinct; head black; length, 23 mm.; G-1686-2, -5. Neodiprion sp. 1. 



5(4) Body with broad longitudinal bands along supraspiracular lines, instead of rows of 

 segmentarly arranged spots 6. 



6(7) Subspiracular lines with broad brownish bands; head black; pedal lines also marked 

 brown; tenth abdominal tergum faintly marked; subdorsal bands much wider than 

 the distance between them; these bands much lighter in color than those on latus; 

 body dull greenish; length, 21 mm.; on spruce; G-791 abietis Harris. 



7(6) Subspiracular lines without brownish bands; head light brown, brown, or pale 

 creamy yellow; subdorsal bands very narrow or very wide; pedal lines with or 

 without bands 8. 



8(9) Pedal lines with distinct brownish bands; tenth abdominal tergum unmarked except 

 along caudal margin; subdorsal bands very much wider than the distance between 

 them, lighter in color; head blackish or brownish with brown marks on vertex and 

 front or pale brown; length, 19 mm.; G-156 Neodiprion, sp. 2. 



9(8) Pedal lines without distinct brownish bands; tenth abdominal tergum marked, 

 entirely concolorous with head; subdorsal bands very narrow, usually narrower than 

 the distance between them; head light brown or pale creamy white with vertex 



shaded grayish; length, 19 mm.; G-1686-3, -6, -7 Neodiprion sp. 3. 



10(1) Head reddish brown or orange; body spotted; subdorsal and supraspiracular lines 



with black spots 11. 



11(12) Subspiracular and pedal lines with black spots; spots on subdorsal lines tapering 

 caudad, partly broken between annulets; spots along supraspiracular lines large, 

 subquadrate; spots on subspiracular lines smaller, sometimes very small but never 

 obsolete; spots on pedal lines very small, sometimes obsolete; tenth abdominal 

 tergum with a pair of large black spots which sometimes fuse on the meson; length, 

 25-28 mm.; G-1554, -1686-8, -593, C-cue-315, C-Young-37 lecontei Fitch. 



