377] LARVAE OF THE TENTHREDINOIDEA—YUASA 59 



spiracular line abnormally low in position, coinciding with latero-ventral 

 line; prothoracic glands present, large, triangular, fleshy, attached cephalo- 

 mesad of prothoracic legs; glandubae sessile; 



SPECIES OF CALIROA 



1(2) Anal setae not all of same type and length, longer ones arising from minute but 

 distinct tubercles, brown, apparently barbed, curved at tips, as long as labrum, 

 ten to twelve in number, arranged in a transverse row on suranal and subanal lobe; 

 spiracles distinctly winged, brown; clypeus light brown; head deep brown; thoracic 

 legs and antennae deep brown; smaller setae on anal area normal in form, much 

 shorter than the long barbed ones, scattered beyond the transverse rows; lengths of 

 front, clypeus, labrum, and width of labrum to each other as 23, 10, 8 and 12 respec- 

 tively; length of body, 11 mm.; width of head, 1 mm.; on cherry, plum, Crataegus; 

 Y-209, M-260,-249,-115, C-551,-552 cerasi Linnaeus. 



2(1) Anal setae all of same type and length, none arising from distinct tubercles and 

 barbed, all of normal type, much shorter than labrum; spiracles usually not winged . 3. 



3(8) Head blackish, deep brown, or brownish; legs brownish in part, not concolorous with 

 body 4. 



4(7) Head blackish or dark brownish 5. 



5(6) Head black or dark brownish black; anal setae scattered, pale, subequal in length, 

 about three-fifths as long as labrum; prothoracic legs distinctly lighter in color than 

 other legs, which are brownish; spiracles of cephalic segments faintly winged ; clypeus 

 whitish; lengths of front, clypeus, labrum, and width of labrum to each other as 

 22, 9, 8, and 11, respectively; length of body, 10.5 mm.; width of head, 1 mm.; on 

 oak; M-157,-200,-245, G-553c, Y-mck Caliroa sp. 1. 



6(5) Head deep brown; anal setae scattered, subequal in length; prothoracic legs higher in 

 color than other legs; spiracles never winged; anal setae about one-third as long as 

 labrum; clypeus pale brown; lengths of front, clypeus, labrum, and width of labrum 

 to each other as 18, 10, 8, and 11 respectively; length of body 6 mm.; width of head, 

 .9 mm. ; on wild cherry; C obsoleta Norton. 



7(4) Head brownish or light brown; all legs pale brownish; anal setae scattered, subequal 

 in length, about one-third as long as labrum; clypeus pale brown; lengths of front, 

 clypeus, labrum, and width of labrum to each other as 10, 9 ,7, and 11, respectively; 

 length of body, 8 mm.; width of head 1 mm.; on white oak and Crataegus; C-7, 

 M-230 quercus-alba Norton. 



8(3) Head pale brown or whitish; legs whitish, concolorous with body; spiracles not 

 winged; anal setae scattered, subequal in length, about three-fifths as long as labrum; 

 lengths of front, clypeus, labrum, and width of labrum to each other as 21, 9, 7, and 

 10, respectively; length of body, 10.5 mm.; width of head, 1 mm.; Y-121, G-553c, 

 M-143,-201,-231,-236-242 quercus-coccinea Dyar. 



Tribe Phlebatrophini 



Body viewed from the side distinctly depressed, venter flattened, 

 thorax thickened, broadest on mesothorax, prothorax declivous cephalad, 

 caudal segments distinctly tapering; segmentation and annulation distinct; 

 third abdominal segment with two annulets, annulet 2 sparsely and incon- 

 spicuously setiferous; tenth abdominal tergum without tubercles; tenth 

 sternum small; thoracic legs modified, fleshy, indistinctly four-segmented, 



