358 KHOPALOCEEA. 



The genitalia of the male have a simple tegumen, ending in a single pointed rod, 

 bent into a hook at the end. The harpes are not symmetrical ; both are cleft horizon- 

 tally, each portion being drawn into a curved rod : in the right harpe the lower rod is 

 much the longer of the two and is bent upwards, the short upper rod straighter, 

 lmost crossing it ; in the left harpe the upper rod is the longer and is more curved, 

 the lower much shorter and straighter. (See Tab. LXXXII. fig. 1.) 



PYTHONIDES. 



Pythonides, Hiibner, Verz. bek. Schm. p. 110 (1816); Wats. P. Z. S. 1893, p. 51 (partim). 



Mr. Watson divides this genus into two sections, in one of which he states that the 

 species have two pairs of spurs on the hind tibiae and no tibial tuft ; in the other only 

 the terminal pair of spurs is found, and there is a long tuft of hair from the proximal 

 end of the hind tibiae. In reality there are three sections of Pythonides as under- 

 stood by Mr. Watson, for besides the two noticed by him there is a third, of which 

 P. loxus is typical, in which both pairs of spurs are present, besides the tibial tuft. 



On looking further into the question we find that the first of these sections, con- 

 taining the typical species P. cerialis, is separable from the others, on the character of 

 the antennae, which have a club and hook agreeing with other genera of this division. 

 We therefore use the name Pythonides in this restricted sense, and place the other 

 divisions elsewhere. 



The antennae have a small swollen club, and end in a short hook as in all the 

 members of this division. The palpi are porrect, the terminal joint short and obtusely 

 conical. The primaries are somewhat elongated, the inner margin rather longer than 

 the outer, and slightly concave near the anal angle ; no costal fold ; the cell is less than 

 two-thirds the length of the wing ; the discocellulars nearly transverse, the lower and 

 middle subequal; the third median segment about one-third the second segment. 

 Secondaries slightly produced at the anal angle ; discocellulars feeble, the lower longer 

 than the upper; the radial just visible; third median segment very short, the second 

 subcostal segment considerably shorter than the second median segment; no sexual 

 patch or tuft of hairs nor swollen nervures. The hind legs have two pairs of spurs to 

 the tibiae, but no tibial tuft. The harpes of the male genitalia are symmetrical. 



The range of Pythonides extends over nearly the whole of tropical South America, 

 eleven species occurring within our borders. 



l. Pythonides cerialis. (Tab. LXXXII. fig. 2 j .) 



Papilio cerialis, Cr. Pap. Ex. t. 392. ff. N, O 2 ; Stoll, Suppl. Cr. t. 10. ft. 1 A-C 2 . 

 Pythonides cerialis, Plotz, Jahrb. Nass. Ver. xxxvii. p. 7 (1884) 3 ; Wats. P. Z. S. 1893, p. 51 4 . 



Alis fuscis ; anticis fascia submarginali pallida ad anguluin apicalem et ad angulum analem squamis paucis 

 glaucis notata, maculis q uinque, venis bene divisis plagam medianam f ormantibus, macula in cellula extrorsum 

 profunde sinuata, punctis qnatuor in paribus ad angulum apicalem ; posticis fasciis duabus indistinctis 



