CLEAR-WING MOTHS OF FAMILY AEGERIIDAE 7 



24. Labial palpus with a short, nearly smooth brush. 



Carmenta H}'. Edwards (in part) 

 Labial palpus with a strong, uneven brush Ramosia, new genus 



25. Forewing with veins 7 and 8 stalked, 1 dorsal vein absent Bembecia Hubner 



Forewing with veins 7 and 8 separate ; all veins present. 



Zenodoxus Grote and Robinson 



THE SYNANTHEDON GROUP 



Male and female genitalia. — Uncus, large flaring lobes more or less 

 turned backward over the termen, thickly clothed with characteristically 

 long, thick spines with shortly bifurcated tips and blackened in the cleft. 

 Gnathos broadly emitted from tegumen, weakly sclerotized, cup-shaped; 

 from it a long, thin, wirelike, undulating, ventral plate, supporting the 

 underside of the bulgy alimentary canal. Anellus a small triangular or 

 quadrangular plate with two lateral processes, supporting the retractable 

 tube surrounding the aedeagus. Aedeagus long, slender, often with bulbous 

 base and with short spines on or near the tip, which in some forms is 

 furcate. Cornuti normally short, often paired thorns, but in some genera 

 merely represented as fine granulation. Vinculum long or short, strongly 

 sclerotized, sometimes broadened or slightly furcate at tip. Harpe elongate 

 ovate, apex sometimes bluntly pointed ; costal and terminal half thickly 

 covered with characteristic biforked spines, similar to those on uncus ; 

 sacculus with a more or less naked basal area, bordered costally by a ridge, 

 the "sacculus ridge" with prominent scales or spines of diverse form ; the 

 modifications of this armature constant within the species and, therefore, 

 furnishing excellent specific characters. Female genitalia with simple, 

 cup-shaped ostium, ductus short, in some genera sclerotized on terminal 

 part ; bursa simple, oval, thin-walled, without signum. 



Genus SANNINA Walker 



Sannina Walker, List of the specimens of lepidopterous insects in the collection of 



the British Museum, pt. 8, p. 63, 1856. — Beutenmuller, Mem. Amer. Mus. Nat. 



Hist., vol. 1, pt. 6, p. 242, 1901. (Genotype, Sannina iiroceriformis Walker.) 

 Saunina Boisduval, Histoire naturelle des insectes : Species general des lepidopteres 



heteroceres, vol. 1, p. 465, 1874. (Misspelling.) 

 Sospita Hy. Edwards, Papilio, vol. 2, p. 56, 1882. (Genotype, Aegeria quinquecau- 



dala Ridings.) 

 Phemonoe Hy. Edwards, Papilio, vol. 2, p. 97, 1882. (New name for Sospita Hy. 



Edwards, preoccupied.) 



Tongue well developed, spiraled. Antenna a little more than half the 

 length of the forewing, slender, moderately dilated toward the tip, tufted 

 at tip ; in male shortly and finely bipectinate ; in female simple. Labial 

 palpus upwardly curved, reaching the top of the head ; second joint thick- 

 ened with appressed, nearly smooth scaling; third joint shorter than 

 second, bluntly pointed. Hindtibia and first tarsal joint thickened with 

 rough scales above. Anal tuft of the male consisting of five long hair 



