342 ENTOMOLOGICAL NEWS. [Oct., IQI1 



volver should be part of the collector's paraphernalia, as the 

 little hydrophobia skunk seems to be particularly partial to ento- 

 mologists and his visits are largely nocturnal. Tin boxes 

 should be used in packing specimens, as they not only safe- 

 guard the contents from the ravages of ants, but also to a con- 

 siderable degree are mouldproof. For night collecting, an 

 acetylene lamp is quite indispensable. Sugaring I have found 

 to be highly unproductive. 



Notes on a few Nymphs of Agrioninae (Order 

 Odonata) of the Hagen Collection. 



By JAMES G. NEEDHAM, Cornell University, Ithaca, N. Y. 



(Plate XI.) 



Supplemental to the descriptions and figures of nymphs of 

 Calopteryginae that were published in ENTOMOLOGICAL NEWS 

 for March, 1911, I present herewith some descriptive notes 

 and drawings of three nymphs of Agrioninae. The species 

 are <from India. The specimens are in the Museum of Com- 

 parative Zoology, where I studied them in 1905. Although 

 long in Dr. Hagen's possession they were not described by 

 him. They present some peculiarities of structure that will 

 be of special interest and value when the primary subdivisions 

 of the subfamilies of Zygoptera shall come to be accurately 

 defined. 



Legion Podagrion s. lat. gen. ? sp. ? (Plate XI, figs. 1-4). 



A few poorly preserved specimens of this species bear the 

 M. C. Z. number 334. 



A well-grown nymph measures; in length, 28 mm.; gills, / mm. ad- 

 ditional ; abdomen, 21 mm. ; hind femur, 5 mm. Width of head, 5 mm. ; 

 of abdomen, 3.5 mm. 



A smooth and rather slender species with long abdomen and 

 rather short legs. Head widest across the middle of the large, 

 laterally prominent eyes, which cover two-thirds of its side margins. 

 Hind angles low, broadly rounded, subspinulose ; between them the 

 hind margin is deeply notched. Ocelli large, close together. Antennae 

 about as long as the head is wide, the length of the several seg- 

 ments from the base outward is as I : 1.3: 2.1 : 1.7 : 1.3 : i : .6. 

 Labium elongate slender, the hinge reaching porteriorly to the 



