114 JOURNAL OF ENTOMOLOGY AND ZOOLOGY 



of ("jicli tcrgitc sulTusc.l \vi!li l.rdwii. In old and fully ,-(.lci-c(l 

 pupa', the hascs of the dorsal spines arc hrown, tlic lii)s paler; 

 the head and thorax with appenda-es hrown. sometimes very 

 dark :alM|(, men yellowish. 



Mair liases ,,f the antennae approximated on either side of 

 the mid. lie line uf the venter lyin- hetweeii the eephalie half of 

 the coinponnd eyes; antenna; rather enlarged, directed eei)lialad, 

 liendin- around tlie anterior margin of tlie eye and theneo 

 directed ean.lad; the anteinia ends between the foi'e tihia' and 

 femora Just heyond the Joint, the tip ali.nit on a level witii tlie 

 lolies of the lahium; in older ])npa' the peculiar nodose segments 

 of the imaiio show through the sheath. Eyes rather large; 

 lal.rum elongate, slender. Cephalic jiortion of the head very 

 Hat and broad without spim's;a small blunt tubercle between the 

 antennal bases. 



Pronotal bi'eathing horns large, conspicuous, directed dorsad 

 and laterad. the apical lialf bent rather smldeiily c.'plialad. 

 Mesonotuni feebl\- wi-inkled. .Metanotum with two long >lcn(lci' 

 spines arising beyond midlengtii of the segment, directed caudad 

 and scarcely dor.sad, their tips parallel or slightly con\-ergent. 

 The fore femur is long, ending on a level with the caudal portion 

 of the eye; the fore tarsi are shoi'test, the hind tarsi longest, 

 this relation holding for all the tarsal segments throughout; the 

 tip of the hind legs is Just before the caudal margin of the third 

 abdomiiud segment. Wings broad, reaching the caudal margin 

 of the second abdominal segment. 



Abdomen, viewed from above, with the tirst segment about 

 one-half as long as the s.'cond; segments 11 to \'Il sul)e(|ual in 

 length. Tergites 1 to \l 1 bear a long slender spinous projection 

 from either side of the median line, shortest on the anterior 

 segments, longest on the se\-enth segment. These projections 

 arise from near the caudal mai'giu, those on the anterior seg- 

 ments more parallel, those on the rear segments becoming diver- 

 gent; these projections are direc1e<l caudail and dorsad, those 

 behind being almost |ierpendiiMilar to the body. Segments II 

 to \'ll have the lateral mar-ins produced intothrci' sliarj) spin.'s. 

 these spines being near tlu' base, middle and caudal jiortioii uf 



