NATURAL SCIENCES OP PHILADELPHIA. 169 



Botalis Treitschke. 



B. f u scic om e 11a. Head, face, labial palpi and thorax, yellowish, fus- 

 cous, antennae purplish fuscous. Fore wings purplish fuscous, tinted some- 

 what with yellowish ; cilia purplish fuscous. Hind wings dark fuscous. 



Taken on wing in June. The egg is ellipsoidal ; dirty white; investing 

 membrane thin and covered with punctures, variolate. 



Fore icings loith three subcosto marginal-branches, the apical simple; apex pointed. 



B. flavifrontella. Head and face pale brownish ochreous. Labia' 

 palpi dark fuscous. Thorax and antenna? purplish fuscous. Fore wings pur- 

 plish fuscous, with a yellow basal streak from the base to the middle of the 

 wing, sometimes almost wanting, and the tip of the wing of the same hue. 

 Hind wings dark fuscous. 



Fore ivings with three nervules beneath the apical. 

 B. matutella. Head, face, thorax, and antenna? dark brownish with a 

 purple hue. Fore wings reddish fuscous, with a brassy lustre ; a pale green- 

 ish white spot rather obliquely placed near the middle of the wiug and one 

 of the same hue on the inner margin, near the apex. Hind wings dark fuscous, 

 cilia the same. 



Anaesia ? Zeller. 



Fore wings ovate-lanceolate ; with an opaque space on the costa, towards the 

 end of the costal nervure and the first subcosto-marginal branch. Discoidal 

 cell rather narrow, closed by a short nervure. The subcostal sends four 

 branches to the costa, the first from a point rather behind the middle of the 

 wing, much separated from the second, and the last furcate on the costa be- 

 fore the tip, and a simple branch beneath the latter to inner margin just be- 

 neath the tip of the wing. The median subdivides into four branches, rather 

 approximated at their origins, the medio-posterior branch being nearly opposite 

 to the second marginal. Subcostal furcate at the base. Hind wings trapezoidal, 

 costa refuse, slightly emarginate beneath the tip, hind margin obliquely 

 rounded ; broader than the fore wings. Subcostal nervure rather attenuated 

 toward the base, with a faintly formed intercostal cell, furcate. Discoidal cell 

 broad, closed, with a nervule given off to the hind margin. Median three- 

 branched, medio-posterior branch distant from the others. 



Head smooth, covered thickly with decumbent scales. Forehead broad, al- 

 most spherical ; face rather narrow beneath. Ocelli none. Eyes rounded, 

 moderately prominent. Labial palpi, second joint thick, with a very abundant 

 tuft of hairs beneath prolonged in front ; third joint smooth, slender and pointed, 

 as long as the second. Maxillary palpi, short and distinct. Antenna? simple, 

 scarcely more than one half so long as the fore wings, slightly denticulated, 

 basal joint smooth. Tongue scaled at the base, about as long as the labial 

 palpi. 



I have three specimens of the insect belonging to this genus, but none of 

 them show the peculiar structure of the palpi of the European male. Whe- 

 ther mine are all females or whether the individuals are generically distinct from 

 the European, as the details of some parts of their structure seems to indicate, 

 must be left for future determination. 



A. ? p r u n i e 1 1 a . Head and face pale gray ; thorax dark gray. Labial pal- 

 pi dark fuscous externally and pale gray at the end ; terminal joint gray, 

 dusted with dark fuscous. Antennas grayish, annulated with dark brown. 

 Fore wings gray, dusted with blackish brown, with a few blackish brown spots 

 along the costa, the largest in the middle, and short blackish-brown streaks 

 on the median nervure, subcostal, in the fold and one or two at the tip of the 

 wing ; cilia fuscous gray. Hind wings fuscous gray ; cilia gray, tinted with 

 yellowish. 



I860.] 



