DOWNESIA. 1()7 



Genus XXIX. DOWNESIA. Details, Tab. II. Fig. 9. 



Antennce (fig. 9 a) robiLstse, subincrassatae, articulis cluobiis basalibiis 

 brevibus, paullo incrassatis, tertio paiillo elongate, tribusproxi- 

 mis bre\ioribus, sequalibus, obconicis, cpiatuor sequentibus lon- 

 gioribus, incrassatis, sequalibiis, sxibcylindricis, ultimo adhuc 

 longiori, apice subacute. 



Lahram transversum. 



MaiuUbidcB (fig. 9 b) apice bidentata3. 



Pid])i maxillares (fig. 9 c) articulo primo parvo, subclavato, secundo 

 vix longiori, obovato, paullo incrassato, duobus sequentibus 

 longioribus, leniter compressis, illo obconico, hoc ovato ; luhiales 

 (fig. 9 d) articulo primo minuto, secundo obconico, ultimo 

 paullo elongate, ovato. 



Mentum (fig. 9 e) subpentagonum, ad apicem ampliatum ; lUjida 

 (fig. 9/) oblongo-quacbata. apice rotundata. 



Caput obtusum. 



Thorax subquadi'atus, parallelus, antice paullo productus, dorse 

 transversim convexus. 



Sciitellum oblonge-ovatum. 



Ehjtra clongata, convexa, apice rotundata, sutm-a sinuata. 



Pedes breves, robusti ; femoiibus incrassatis ; tarsis anticis (fig. 9 y) 

 articulo prime cseteris latiori, ungue elongate. 



Corpus elongatum, subcylindi'icum. 



I have named this singular genus after Ezra De^vnes, Esq., of 

 Bombay, a gentleman who for many years past has been an inde- 

 fatigable investigator of the habits and CEConemy of Indian insects. 



1. Downesia insignis, n. sp. Tab. YIII. Fig. 2. B.M. 



D. angustata, subcylindrica, nigra, nitida ; thoracis lateribus rectis ; 



elytris costatis, fortiter punctato-striatis. 

 Long. 2 lin. 



D. narrow, subcylindrical, shining black. Head smooth ; antennae 

 robust, subincrassate, equal in length to the head and thorax. 

 Thorax rather longer than broad ; sides perfectly straight and 

 jjarallcl, notched at the base, narrowly margined, anterior angles 

 nearly rectangular ; anterior margin produced, convex ; base mar- 

 gined ; above subconvex from side to side, siuiace covered ^\i\h. 

 small subremote punctiu'es. Scutellum smooth, impunctate. Ely- 

 tra rather broader than the thorax ; sides parallel, narrowly mar- 

 gined; apex rounded; above convex, each elytron impressed with 

 six or seven rows of deep ])unctures, outer striae sulcate, alter- 

 nate interstices costate ; beneath sliining black. 



Hah. Noi'thern India. 



British Museum, and collection of J. S. Baly. 



