Mr. A. Gr. Butler on new Species of Sesia. 365 



narrowly black or piceous at the apex ; fourth, basal third, 

 except a narrow black ring at the base, yellow or yellowish 

 white, apical two thirds black. Eyes reddish or chestnut. 

 Ocelli red. Rostrum yellow, apex black, beneath finely punc- 

 tured, with a longitudinal black central line, and a short one 

 of the same colour on either side of it at the base. 



Thorax. — Pronotum, lateral margins and the apical two thirds 

 of the disk very delicately black-punctured; posterior angles ele- 

 vated into a callus, which is piceous ; down the centre a slightly 

 elevated unpunctured yellowish line ; at its termination before 

 reaching the anterior margin two (sometimes four) minute 

 black spots. Scutellum finely black-punctured. Elytra more 

 coarsely and sparingly punctured than the previous portions : 

 clavus with a row of fine, more or less black, punctures next, 

 the suture, and another along the inner margin ; disk irregu- 

 larly and very sparingly punctured : corium, first nerve on 

 both sides and the inner nerve on the inside with a row of fine 

 black punctures ; disk more sparingly and coarsely punctured ; 

 apex, and generally the inner posterior angle, piceous or black. 

 Membrane pale, between the nerves pale piceous. Sternum 

 fulvous or grey-yellowish, punctured on the sides ; the punc- 

 tures sometimes blackish ; down the centre broadly black. 

 Mesosternum with a deep longitudinal channel, widest poste- 

 riorly ; adjoining the base of the first and second pair of legs 

 is a black spot. Legs fulvous or yellowish : coxai anteriorly 

 with a piceous spot at the base : thighs finely black-punctured, 

 the punctures somewhat disposed in longitudinal rows ; tibice 

 sparingly and finely black-punctured ; tarsi yellowish, apex 

 of the first, second, and third joints black. 



Abdomen above black, with a broad yellowish streak down 

 the centre, widened at the posterior margin of each segment, 

 so that on each segment the streak appears I-shaped ; beneath 

 fulvous or grey-yellowish, with a longitudinal black central 

 line, and another on either side, composed of black punctures. 

 Connexivum above yellow ; posterior margin of the three or 

 four terminal segments narrowly black. 



Length 6-6| lines. 



[To be continued.] 



XLVI. — Descriptions of new Species 0/ Sesia in the Collection 

 of the British Museum. By ARTHUR GARDINER BUTLER, 

 F.L.S., F.Z.S., &c. 



Sesia Grotei, n. sp. 



Wings above hyaline, veins black ; primaries with costa 

 black ; outer margin broadlv chocolate-brown, broad on costa 

 Ann. & Mag. N. Hist. Ser. 4. Vol. xiv. 2(3 



