286 RUTELINiE. 



Key io the Species. 



Pronotum lightlv imnctured (J) or scarcely punc- 

 tured ( 5 ) . . .' rv(jrpennis. Oh. 



Pronotum densely punctured ( J ) or well punc- 

 tured ( 5 ) . . . .' frontidm, Burm, 



The features by which Dr. Ohaus has distinguished the species 

 of this genus are variable and of little value, but his excellent 

 figures of the aedeagi of the males render exact identification of 

 that sex possible, and I think the cliaracters stated above will 

 enable both sexes to be recognised without much difficulty. 



307. Pachyrrhinadoretus rugipennis. (Plate Y, iigs. 4-10.) 



Pachyrrhinitdoyftiis riic/ipennis, Ohaus, Deutsche Ent. Zeits. 1912, 



p. 511. 

 Fachyryhinadoretus deccaiius, Ohaus, 1. c. p. 512. 

 Pachijrrhinadoretris monticoht. Ohaus, 1. c. 



Orange-yellow, with the foreliead dark and (in the S) usually 

 the pronotum also and frequently the elytra, except tlie outer 

 margins. The body is clothed, abo^•e and beneath, \\ith very 

 fine grey pubescence, which is moderately close in the male, 

 sparser in the female. 



It is extremely similar in shape and general appearance to 

 P. frontahis, Burm. The head is rugosely punctured, but not 

 very finely or closely, and the clypeus ratlier sparingly. The 

 pronotum is fairly closely punctured in the male, very sparsely at 

 the sides in the female, and almost devoid of punctures in the 

 middle. In other respects it agrees with P. froniatiis, Burm. 



The sexes differ as in P.frontatus, but the pronotum of the female 

 is still more smooth. The female is generally entirely pale, except 

 the head, but the middle of the pronotum may also be dark. In 

 one specimen in tlie British Museum the pronotum is pale and 

 the elytra are dark (except the outer margins). 



Length, 9-5-11 mm. ; breadth, 5-6 mm. 



Bengal: Palamow (Nov.), Chapra, Kurnul ; Bombay: Ahme- 

 dabad, Prantig (Nov.), Belgaum {H. E. Andrewes), Dharwar, 

 Kanara {T. li. D. Bell); Madkas : Madura ( C. Somers-iSmith). 



Although the collector's name is not given, it is evident from 

 the localities enumerated by Dr. Ohaus (Belgaum, Kanara, 

 Madura) that P. deccanus was described from specin)ens obtained 

 by Mr. H. E. Andrewes from those localities. These were sent 

 to Berhn, and a set was retained by Dr. Kraatz. I have examined 

 and dissected series from each of these localities and have been sur- 

 prised to find that, although externally they are practically alike, 1 he 

 tedeagi show a remarkable range of variation. In examples from 

 Madura the organ (Plate V, fig. 9) is as represented by Dr.^Ohaus, 

 but those from Kanara and Belgaum hare a greater resemblance 

 to, and indeed form a chain of connecting links with, the rugi- 

 jjemiis form. There is some variation in specimens from the same 

 locality, but more marked differences distinguish specimens from- 



