Q7 



PHILIP P- CALVERT. »' 



Contrada and coarctata were described by Ra.nbur from he col- 

 lection of Marchal, now in the Hope Collection, University Museiun, 

 Oxford Encdand. The type of coatractuvi is a male from Maurice, 

 marked " la°tete est fausse", which is correct, as the head is not that 

 of an Orthetrum. On the reverse side of the label is written " Li- 

 bellula iM-achialis Maurice" and some words in French that I could 

 not decipher.! The following notes were made Sept. 3, 1896 : 



Eambur's type of Lib. contracta at Oxford [only] differs from n,y description of 

 br^aalu [Proc U. S. Nat. Mas. I. c] in having the anterior lau^ina more pron.- 

 nent than any other part. 



The costal vein like all others, includino: the antenodals, is black sh. The 

 coloring at the base of hind wings is restricted to the merest trac^e of Y"^"";^;" 

 yellow in the submedian space and alongside the base of the membranule. but i 

 does not reach as far as one cell in the area below the postcostal vein Two rows 

 of cells between the subnodal sector and the next supplementary sector belo.^- 

 at the level of half-wav between nodus and pterostigma. Sectors of the tnangle 

 united at origin. Arculus of all wings beyond the second antenodal. ^_ 



Abdomen 31.5 mm., front wing 35, hind wing 'not entire), pterostigma 3..o. 

 This is surely the same species as that which I have described as brachiahs 

 Beauv. 



The type of coarctata is a female from Ile-de-France ; the last six 

 abdominal segments are wanting. These notes were also made Sept. 

 3, 1896 : 



Eambur's type of Lib. coarctata at Oxford differs from my description of brncln- 

 alis 9 [Proc.'u. S. Nat. Mus. 1. c] in that the light colors of the abdomen are 

 yellow rather than brown. ... • , i- ^ o„,i 



Pterostigma luteous, membranule cinereous; reticulation, including costa and 

 cross-veins, blackish. Sectors of the triangle of the hind wings un.ted at ongin. 

 Two rows of cells between the subnodal sector and the next supplementary sector 

 below. Arculus of all wings beyond the second antenodal. 



Fn.nt wing 38 mm., hind wing 36..5, pterostigma 4.5. 

 o Ortlietrum steinmale Burmeister. 



~' libel s Burm. Hdb. ii, p. 857, 1839.-Mauritius. See page 82, ante, for descrip- 

 tion of L type, and Proc. Acad. Nat. Sciences, Philadelphia, 1898 p. 145. for the 

 trilling differences between it and 0. Wrightn Selys, of the Seychelles. 



3. Orthetrum brachiale Beauvois. , o «„ o isn=^ 



UbelMn b. Beauv. Ins. recueil. Afr. Amer. p. 17 . Neur. pi. 2, fig. 3 180o. 



Rambur, Ins. Nevr. p. 62, 1842. Selys. Ann. Soc. Lnt. Belg. xxx.. p. 21, 188<. 



Not of Calvert 1892, 1895, nor Forster. 1898. 



1 1 studied the types of Rambur, at Oxford, on July f /89o ^d S pt_ 3 

 1896 On my first visit, there was no guide to their typical character othe. than 

 the peculiar style of label bearing the name of the locality and a blue-line border 

 lalidng 7 X 9i mm. On my second visit. I found these marked w, h a spe- 

 ITly^ ted label indicating them as types. See I.nt. News vii p. 66 foot^n^e. 

 Mardi! 1896, and Ninth Annual Report of the Delegates of the University Mu- 

 seum [Oxford] (for 1896), page 34. 



^^„ n-^t SEPTEMBER, 1898. 



TKANS. AM. ENT. SOC. XXV. U-^' 



