58 ILLINOIS BIOLOGICAL MONOGRAPHS {376 



wide, slightly pointed at dorsal apex; mouth directed slightly ventro-caudad; 

 antennae with four or five segments, slender, elongate, conical, or sub- 

 conical; mouth-parts normal in form; spiracles with or without wings; 

 ventral glands wanting; prothoracic glands sometimes present; glandubae 

 present, conical, tuberculate or sessile; cuticle usually microscopically 

 verrucose; larvae in life sometimes distinctly slimy; subgregarious; leaf- 

 skeletonizers. 



GENERA OF PHYLLOTOMINI 



Body without minute tubercles, tadpole-like, slimy; glandubae sessile Caliroa Costa. 



Body with minute tubercles, not tadpole-like, not slimy; glandubae conical, tuberculate. 



Endelomyia Ashmead, 



Endelomyia Ashmead 



Larvae small, length less than 15 mm., greenish yellow; body sub- 

 cylindrical, apparently almost glabrous, not tadpole-like, thorax 

 thickened, tapering caudad; third abdominal segment with six annulets, 

 annulets 2 and 4 tuberculate; tenth abdominal tergum with eight to ten 

 conical tubercles arranged approximately in three transverse rows; suranal 

 and subanal lobes with several rather long stiff setae; thoracic legs with 

 distinct tarsal claws; larvapods on ultimate segment normal in form, 

 separated; antennae with five segments, slender, elongate-conical; mandi- 

 bles with dentes; spiracles not winged; spiracles on sublateral lines; pro- 

 thoracic glands wanting; glandubae conical, tuberculate; body not slimy. 



Endelomyia aethiops Fabricius. — Length, 13 mm, ; width of head, 1.2 mm. ; 

 head light brown; mouth-part's, labrum, and tarsal claws deep brown; body 

 greenish yellow to yellowish white; tubercles concolorous with body; 

 typical tubercular formula on prothorax: 3-6 on first annulet, 2-3 on pro- 

 subspiracular lobe, 2-5 on annulet 2; third abdominal segment with 2 and 

 3 tubercles on annulets 2 and 4 respectively, 1 on annulet 3 near the spiracle, 

 1 each on subspiracular and surpedal lobe; annulation, 1, 2, 3, 4, (5, 6); 

 antennae, 1, (2, 3, 4), 5; maxillary palpi, (1, 2, 3), 4; labial palpi, 1, 2, or 

 (1,2); subgregarious; on Rosa; Y-2, M-127. 



Caliroa Costa 



Larvae small, length 6-12 mm., whitish; body distinctly tadpole-like; 

 thorax conspicuously swollen, rounded on dorsum and flattened on venter; 

 tapering distinctly caudad; third abdominal segment with six indistinct 

 annulets, annulets 2 and 4 with a few glandubae; tenth abdominal tergum 

 without tubercles; suranal and subanal lobes often with a number of stiff 

 rather long setae; thoracic legs with distinct tarsal claws; larvapods on 

 ultimate segment obsolete, their position indicated by a small median 

 swelling; antennae with four segments, rather thick, elongate, distal 

 segment microscopic; mandibles with dentes; spiracles usually winged; 



