38 THE ENTOMOLOGIST. 



ON THE VARIETIES OF PYRRHOSOMA TENELLUM 

 AND P. NYMPHULA. 



By Kenneth J, Morton, F.E.S. 



As is well known, the female of Pi/rrhosoma tenelliim, De 

 Villers, assumes two strongly marked deviations from the 

 normal form, namely, one which has the abdomen black-bronze, 

 and the other which has the abdomen crimson like that of the 

 male. Mr. Lucas (Entom. 1901, p. 68) names these forms 

 ceneatiiiii and ruhratum respectively. He remarks that Dale took 

 the former in Dorset, and he mentions De Selys' references in 

 the 'Revue,' p. 181, to both forms. De Selys there gave no 

 names. Subsequently, however, in the * Synopsis des Agrionines,' 

 5me legion : Agrion, pp. 185-6 (separate), the bronzed female is 

 named melanogastrum (from Dorset, Syracuse, and Algeria), 

 while the crimson female is named erythrogastrum. The inter- 

 mediate form to which Mr. Lucas also alludes is called by 

 De Selys intermedium. 



And BO, too, with Pi/rrhosoma nymphula, Sulzer. The dark 

 form {cBneatnm, Lucas) with yellow instea^d of crimson markings 

 is named by De Selys {I. c. p. 188) melanotiun, the localities 

 stated being Madrid, Dorset, and Corfu. I possess it from the 

 Sierra Albarracin, Spain (Miss Fountaine). 



The Selysian names must naturally have priority. 



13, Blackford Eoad, Edinburgh : January, 1908. 



A NEW PSEUDAGENIA FROM SIKKIM. 

 By p. Cameron. 



Pseudagenia hidens, sp. nov. 



Black ; pruinose, wings hyaline, a cloud along the transverse 

 median and transverse basal nervures, the cloud narrow in front, 

 becoming gradually widened behind ; a wider cloud commencing 

 shortly behind the first transverse cubital nervure and extending to 

 the second recurrent nervure ; the nervures and stigma black, Apex 

 of clypeus rounded, its middle with two distinctly separated, stout 

 teeth, bluntly rounded at the apex. $ . Length, 9 mm. 



Eyes converging above ; the ocelli in a triangle, the hinder 

 separated from each other by a less distance than tbey are from the 

 eyes. Apex of mandibles brown ; the palpi black, tinged with fuscous 

 and covered with white pubescence. Tliorax long; the apex of pro- 

 notum broadly rounded. Post-scutellum finely, irregularly striated in 

 the middle. Apical slope of metanotum with a shallow finely irregu- 

 larly striated furrow down the middle. The upper part of metapleurfe 

 is separated from the lower by a distinct furrow, w)]ich has a few 



