August 1899.] 



PSYCHE. 



395 



oi-ifice. Around the lateral margin there is 

 a row of about 32 sharp sword-like hairs. 

 A long seta is situated on each side of the 

 orifice, and on the ventral surface, near the 

 posterior end there are a pair of short setae. 

 The remains of the legs and antennae can 

 be seen on the ventral surface. 



Adult 5- — Brown; eyes large, black; 

 length 1.63 mm. Antennae of seven joints; 



oint 2 large, club-shaped ; joint 3 very long ; 



oints 4-6 short, cylindrical, equal in length ; 



oint 7 about half the length of joint 3. 

 Wings large with the basal half and portions 

 of the rest of the wing smoky. 



Hab. On the underside of leaves of 

 grass growing on swampy ground, S. Paulo, 

 Brazil. It is also accompanied by a species 

 of ant (Camponotus). 



Aleurodes parvus n. sp. — Pupa-case. — 

 Small, flat, black, oval; .94 mm. long; 

 usually enveloped in a mass of white felt- 



like hairy secretion. Dorsum with a longi- 

 tudinal median ridge, and several transverse 

 furrows. Marginal edge thickened, with a 

 double row of crenulations. Vasiform ori- 

 fice hemispherical. Operculum small, hemi- 

 spherical, not filling the orifice. A long 

 seta is situated on each side of the orifice. 

 A pair of short setae extend caudad from 

 the posterior part of the body ; and another 

 pair are situated on the ventral surface just 

 cephalad of the middle. 



Adult $. — Body very light yellow, eyes 

 black; length .90 mm. Wings transparent, 

 dusted with a white powder. Antennae 

 short, slender, of seven joints. Joint 2 

 large club-shaped; joints 3-7 small cylin- 

 drical. 



Hab. — On the under side of leaves of 

 Maytenus sp. S. Paulo, Brazil. 



S. Paulo, Brazil, May 15, 1896. 



LIFE HISTORIES OF NORTH AMERICAN GEOMETRIDAE. — III. 



BY HARRISON G. DYAR, WASHINGTON, D. C. 



Rutrapela {Seletiia) alcipheraria Walk. 

 — The eggs were kindly sent me by Miss 

 Caroline G. Soule from Woodstock, Ver- 

 mont. The moth which I bred was deter- 

 mined b3' Dr. Hulst. The larva is not pre- 

 viously described to my knowledge. 



Rgg- Regularly elliptical from top view, 

 the surface flattened, but obliquely; outline 

 somewhat wedge-shaped from the side, the 

 top slightly hollowed. Surface shagreened 

 not reticulated, shining. Dimensions .4x1 

 mm. Green when laid, dark red when re- 

 ceived and finally blackjust before hatching. 



Stage I. Thick and stout black Geomet- 

 rids, the abdominal feet normal. Head bi- 

 lobed, brown-black with pale setae; width 

 about .5 mm. Body all dark velvety brown, 

 the abdominal and anal leg plates bright red, 

 contrasting; four tiny yellow dorsal dots 

 (paired oval light areas on the posterior 



edges of segments 5 and 7 which are not 

 tubercles). Tubercles conic, distinct, but 

 concolorous; setae short, dark, normal, 

 with slightly swollen tips. Anterior edge of 

 cervical shield and mouth reddish. The 

 larvae drop by a thread on being disturbed 

 and twist up into a knot. 



Stage II. Head about .8 mm wide; all 

 dark vinous black as before, but the little 

 bright paired dots are supplemented by a 

 fainter pair on joint 8 and tubercle i of joints 



5 to 9 is produced into a rounded prominence. 

 Head rounded, clypeus pale. 



Stage III. Head rounded, brown with a 

 short and thick black band on each lobe; 

 width 1.2 mm. Tubercle i on joints 5 to 9 is 

 high and subpapillose; white dots on joints 



6 and 7 anteriorly. Body still largely brown, 

 but diversified with gray in dorsal and sub- 

 dorsal diffuse and dotted bands on joints 5 to 



