1!)1 ll Mexamlcr — .Ycic or I.Mc-kiioun .Wolropical Ilexaiomini iJO 



browu, basally, (larkoniii^' to brownish-black on the knob. Legs: coxie ami Iro- 

 chanlcrs dark brown: femora dnil brownish-yellow, lip broadly dark brown, an 

 indistinct broad (hirkcr median band; tibia; and tarsi brown, the former lighter 

 colored basally. 



Wings: pale light yellow; a broad brown basal band filling in the sjiace from 

 slightly beyond cross-vein b to beyond the origin of ft,; a second brown band filling 

 in the space frt)m the cord to the tip of III, down to the end of Cui. \"enation (see 

 fig. 8): Sc rather short, ending opposite cross-vein r-m before the middle of Ri- j; 

 cross-vein r about equal to that portion of th pro.ximad of it; /?a long. 



.'Vbdoniinal tergites reddish-brown, segments C-7 rather darker, brown; segments 

 8-9, reddish. Sternites reddish-brown. 



Holotype, Savannah, North Hrazil. August ii, 1!)11. (Cramptou.) Type 

 in .American Museum of Xatiiral History. 



Eriocera longistyla .\lex. 

 1805. Tipida erythroccphala I'abricius; .Syst. .\ntliar.; p. 31 {non T. crythro- 



cephala DeGcer. 1776). 

 18^1. Limnobia eryllirocepliata Wiedemann; Dipt. Kxot.; vol. 1, p. IT. 

 18:J8. Limnobia enjthrocephala Wiedemann; Aussereur. zweifl. Ins.; vol. I, p. 30. 

 1838. Cylindrotoma erythroccphala Macquart; Dipt. Kxot.; vol. 1, pt. I., p. 67. 

 1866. Eriocera erythroccphala Schiner; \erh. Zool. bot. Ges. Wien.; vol. 16, p. 



9i9. 



1868. Eriocera erythroeepkala SchineT; Xovara Reise; Dipt.; p. U. 



1869. Eriocera erythroccphala Osten Sacken; Monographs Dipt. -\. .Vni.; vol. 4; 



p. 248. 

 .As I have shown elsewhere, the Tipiila erythroccphala of labricius is honionynious 

 with DeGeer's species and I have renamed it as above. 



I have before me five specimens of this handsome little form, as follows: 

 (1) d', Waratuk, Upper Potaro R.; July l.>, 1911. (Crampton.) 



(4) (f. Upper Potaro R.; July 17, 1911. (Crampton.) 



(3) cT 9, Tukeit, Upper Potaro R.; July 24, 1911. (Lutz.) (in cop.) 



(5) 9, Tukeit, Upper Potaro R.; July 24. 1911. (Lutz.) 



I am including a few additional details in regard to measurements and coloration : 

 cf. Length, 9.1-10.3 mm.; wing, 9.9-10.4 mm, 

 9 . Length, 10.8-11 mm." wing, 10.3-10.9 mm. 



First and second anteunal segments of the same bright orange color as the dorsum 

 of the head; flagellum of antenna; and the palpi dark brown. 



Mesonotid prse.scutum dark brown covered with a thick yellowish bloom which is 

 less intense on the cephalic margin of the sclerite; three broad dorsal stripes, very 

 indistinct. The thoracic dorsum, viewed with the naked eye, appears pearly- 

 yellow; scutum anil scutellum similar to the praescutum; postnotum darker brown, 

 less pruinose. Wing shown in fig. 6. 



Abdominal tergites, segment 1 very dark brown, only the extreme margin orange; 

 segment 2 light orange-yellow, with a dark brown poslmedian band; segment 3 

 orange, more yellowish on the anterior and posterior margins; segment 4, dark 

 brownish-black, anterior (|uarter orange; segments 5-1 deep black, 8 and hyiKipy- 

 gium orange, ^^ternites at)out as in the tergites; ths lateral line dark on 2nd and 



