i- I ill 



372. 



^TROCHILIUM BEMBECIFORME. 



The lunar Hornet-moth. 



**TROCHILIUM APIFORME. 

 The Hornet-moth. 



Order Lepidoptera. Fam. Sphingidse. 



Type of the Genus, Sphinx apiformis Linn. 



Trochilium Scop., Curt. Guide, Gen. 789. — iEgeria Fab., Sam. — Sesia 

 Och., Goda. — Sphinx Linn., Hub., Haw. 



AntenneE inserted close to the eyes, on each side of the head, 

 rather short and thick, slender at the base, rather abruptly point- 

 ed at the apex ; more robust and developed in the male, being 

 strongly pectinated on the inside ; composed of numerous trans- 

 verse joints, clothed w'ith scales above, terminal joint small, 

 slender and subovate, producing several long bristles (l,the api- 

 cal portion). 



MaxillcB composed of 2 flat lobes, not longer than the Palpi (3). 

 Labial palpi long, curved upward obliquely, densely clothed with 

 scales, especially on the underside, the terminal joint being di- 

 stinct (4)3 triarticulate, basal joint short and robust, 2nd very 

 long, 3rd slender, as long as the 1st, subovate at the apex (4 a). 

 Male smaller than the female. Head small and short, the crown tufted. 

 Eyes long and oval. Ocelli 2. Thorax large and smooth. Wings 

 transparent rounded, distinctly ciliated. Abdomen long, robust, cy- 

 lindric and conical, slightly tufted at the apex in the males. Legs 

 stout. Thighs short. Tibiae ; anterior very short, posterior long, 

 densely clothed with hairy scales, spurred at and above the apex. 

 Tarsi 5 -jointed, basal joint long. Claws minute. 

 Larvae Jieshy, depressed, whitish, with a brown head and slightly 

 pubescent, with 6 pectoral, 8 abdominal, and 2 anal feet. 

 Pupae ivith the segments serrated, enclosed in a cocoonformed of wood. 



The genus Trochilium is well distinguished from j^geria 

 (pi. 53) by the shortness of the maxillae, and the males only 

 have a small tuft at the apex of the abdomen. An excellent 

 paper on these insects was published in 1797 in the Linnaean 

 Transactions, yet many authors have since confounded the 

 two species, or have overlooked one of them, and consequently 

 great confusion has been caused by the misapplication of the 

 names : with a view of preventing further mistakes, I have 

 figured, and shall now describe both the species. 



