TRTPOXYLON. 



^o: 



elevated carina just before the insertion of the antennae. Thorax 

 smooth and shining on the disc ; the sides of the metathorax wifh 

 silvery pubescence, and a smooth enclosed space at its base divided 

 by a central channel, beyond the enclosure it divides into a deep 

 and wide fossulet ; wings subhyaline, their apical margins clouded 

 and beautifully iridescent ; legs entirely black. Abdomen with a 

 long petiole, smooth and shining ; the second and third .segments 

 red, their apical margins more or less fuscous. 



" Hah. Mainpuri, North-West Provinces. 



"This species was bred from cells constructed by Pterochilus 

 ptdchellus." 



426. Trypoxylon bicolor. (PI. II, fig. 5.) 



Smith, Cat. iv, p. 377, 2; Kohl, Verh. zool.-bot. Ges. Wien, 1884, 

 p. 203 ; Cam. Meyn. Manch. L. Ph. Soc. (4) ii, 1889, p. 118. 

 Trv'poxylon accumulator, Smith, Trans. Ent. Soc. 1875, p. 38, 9- 

 Trvpoxvlon tinctipeunis, Cam. Mem. Manch. L. Ph. Soc. (4) ii, 1889, 

 pp. 119 & 121. 



2 S . Clvpeus, the front above the antennae, the emargination 

 of the eyes, the cheeks, the pronotum in front, the sides and 

 apex of the mesonotum, the sides of the median segment, and 

 the pleurae pubescent ; the pubescence or pile dense on the clypeus, 

 the cheeks, pleurae, and sides of the median segment; the front 

 and vertex of the head minutely and closely punctured, some\Ahat 

 opaque ; the antennal carina short, prominent : the front verticallv 

 furrowed; the pro- and mesonotum, scutelkim, postscutellum. and 

 median segment smooth and shining in the middle, the last with 

 a subinterrupted medial longitudinal furrow, broadening above 

 and below the posterior slope of the segment ; abdomen smooth 

 and shining, obscurely pilose. Black, the pubescence silvery : the 

 mandibles, the anterior tibiae in front, the tarsi, the base of the 

 intermediate and posterior tibiae and tarsi rufo-testaceous ; the 

 apex of the petiole and the 2nd and 3rd segments of the abdomen 

 ferruginous red ; wings hyaline and iridescent, the nervures and 

 tegulae testaceous. 



Hab. Sikhim ; Burma ; Tenasserim ; Singapore ; Ja\a. 5 d . 

 Lencjth 12-15 ; exp. 18-23 mm. 



427. Trypoxylon gracilescens, Smith, Jour. Linn. Soc. 1861, p. 85, 5 . 



2 . Clypeus, front to a little above the base of the antennae, 

 the sinus of the eyes, the inner narrowly and the outer orbits 

 broadly, a line on the pronotum, the sides and apex of the meso- 

 notum and of the median segment densely pilose, the rest of the 

 head and tliorax smooth and shining ; the front divided by a 

 vertical furrow, on each side of which the face is convexly raised ; 

 median segment with a medial longitudinal slight furrow from 

 base to verge of oblique portion of segment, thence to apex broadly 

 channelled ; abdomen smooth. Ilead. thorax, and petiole of 

 abdomen black ; the apex of the clypeus, the scape of the antennae, 



q2 



