328 BHOPALOCEKA. 



the first segment ; the third subcostal segment is more than the second and fourth 

 together ; the discocellulars of the secondaries are slender, and the second median 

 branch starts from close to the end of the cell ; these wings are rounded and have no 

 tail. The hind tibiae have two pairs of spurs and a prominent dorsal crest. 



The genus is allied with those which follow rather than the preceding. In outward 

 appearance all the species have similar coloration, viz. a distinct semidiaphanous 

 white or yellowish band crosses the primaries, and generally there are subapical spots ; 

 the secondaries are plain, but beneath they are crossed by two obscure dark bands. 



1. Cecropterus neis. (Tab. LXXX. fig. 2c?.) 



Papilio bipunctatus, Gmel. Syst. Nat. i. p. 2360, ex Zschach?? 1 . 



Cecrops neis, Geyer in Hiibxi. Zutr. ex. Schmett. iv. p. 10, ff. 619, 620 (1832) 2 . 



Cecropterus neis, Plotz, Berl. ent. Zeitschr. 1882_, p. 261 3 . 



Alis fuscis, ciliis concoloribus ; anticis ad basin pallidioribus griseo atomatis, fascia mediana venis quadripartita a 

 costa ad angulum analem, macula parva ultra earn infra venam medianam maculisque tribus subapicalibus 

 semihyalinis : subtus pallidioribus ; anticis, maculis et fascia ut supra ; posticis ad basin griseo atomatis, 

 fasciis duabus obscuris transnotatis ; capite summo et prothorace viridi lavatis. 



Had. Mexico, Sierra Madre de Tepic (Bichardaon), Atoyac (H. H. Smith), Jalapa, 

 Coatepec, Einconada (W. Schema), Orizaba (F. D. G.), Tierra Colorada, Teapa (H. H. 

 Smith), Valladolid in Yucatan (Gaumer) ; Guatemala, Volcan de Santa Maria 

 (Bichardaon), Zapote (Champion) ; Nicakagua, Chontales (Belt) ; Costa Rica, Cache 

 (Bog era) ; Panama, Lion Hill (M'Leannan). — South Ameeica from Colombia to 

 Brazil 2 . 



This species has frequently been called P. Upunctatua, Zschach 1 , but in view of the 

 great difficulty in discriminating these closely allied forms and the impossibility of 

 accurately identifying the description with any one of them, we think it better to use 

 Hubner's title, as has already been done by Plotz 3 . 



Compared with C. annua, the general resemblance of C. neia is great, but the trans- 

 verse band of the primaries has more undulating margins, and not unfrequently the 

 portion between the median nervure and its second branch is separated as an isolated 

 or semi-isolated spot ; the subapical spots also are well defined and generally three in 

 number ; the crown and prothorax as well as the tegulse and thorax are more or less 

 tinged with dark green. It is not, however, with C. annua that its real relationship 

 lies. In the male genitalia the outer portion of the harpes resembles that of C. cinctus 

 in having a truncated extremity and a fissure near the end. In C. annua the harpes 

 have a long pointed extremity and the fissure is on the dorsal edge. 



The range of C. neia is very extended ; it is common in Mexico, chiefly on the eastern 

 side of the mountains, thence it spreads southwards throughout Central America and 

 over the greater part of tropical South America. 



The male genitalia have a deeply cleft tegumen ; the scaphium is well developed ; 



