138 >n-. K. I. Pocock on the 



I have fjrcat |ilcasure in dedicating this interesting n;;\v' 

 species to Dr. John Murray. 



Spirobolus monilicornis, Porath. 



Spirohohis mnniliror>ii.f, Porath, Rih. Sv. Vet.-Akad Ilandl. iv. no. 7, 



p. 31 (187r.). 

 SpirolMihis Hiilprini, Bollman, Proc. Ac. Philad. 1H80, p. 127. 

 ? Spirobolus virescem, Dadav, Term, fiizetek, xiv. p. 140, pi. vii. 



figs. 8-10. 



Loc. Bermuda. 



This species occurs commonly in many of the We.st-Indiun 

 Ishinds and also abundantly in Demerara. Dr. Porath'.s 

 exam]>les were ticketed Brazil. S. Ileilprini was describ -d 

 from Bermuda, and virescens, which appears to be the same 

 species, from Trinidad. 



Spirobolus digrammus, sp. n. 

 (PI. IX. figs. 9-9 6.) 



? Spirobolus (essellafus, Porath, op. cit. p. 21 (in part onlv, i. v. tlie 

 example from the Cape). 



Colour. — Head fuscous above, flavous below the eyes ; legs 

 and antennje bright red, concolorousj first tergite black, 

 with its anterior border blood-red, the rest of the segments 

 blood-red in their lower half, black in the u[)per, with two 

 complete parallel blood-red bands running from the posterior 

 margin of the Hrst tergite to the anal somite ; anal valves red. 



Head punctulate, with a median sulcus above and below, 

 with four labral ])ores. Eyes sej)arated by a distance about 

 equal to twice a diameter, subcircular, each composed of 

 about 44 ocelli. 



First tergite punctulate or striolate, the lateral portion 

 narrowed to an angle, with only an anterior marginal sulcus. 

 The rest of the tergites punctulate and striolate throughout, 

 longitudinally striate laterally behind the transver.se sulcus, 

 but the stricc not extending as high as the pore ; the trans- 

 verse sulcus nearly obsolete above. The pores large, above 

 the middle of the side, the anterior the lowest, close to each 

 is a posterior longitudinal stria ; scohina present in most of 

 the somites, but small. 



Anal somite punctulate, the tergite with a somewhat sharp 

 but short median posterior angle ; valves convex, with margins 

 neither sulcate nor compressed ; stcrnite posteriorly angled. 



Legs short, with a single seta above the claw and each 

 segment furnished distally beneath with one seta ; the male 

 with the distal segment padded beneath. 



