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MORPHOLOGY AND TAXONOMY OF ADULT MALES 



width, varying from 17 to 25 (x ; with 22-25 (average 24), 22-30 (average 25), 22-34 (average 

 28), 20-28 (average 24), 17-27 (average 21) and 15-21 (average 17) f.s., respectively, and 

 occasionally each with one or two h.s. ; antennal bristles on segments VIII-IX distinctly 

 thicker than f.s. Segment X : terminal part not constricted ; 76-97 (average 90) [i. long and 

 42-46 (average 43) \x wide ; carrying 9-16 (average 13) f.s., 2 capitate subapical setae and 5 

 antennal bristles of which the 3 long ones are less than half as long as the segment and the 2 

 shorter ones not distinctly different from the f.s. ; with 2 sensilla basiconica ventrally, one near 

 apex and the other more proximal. 



Thorax 562-635 (average 600) \i long. 



Prothorax. Pronotal ridge strong, but medially interrupted by weak sclerotization. Lateral 

 pronotal sclerites small, without setae. Medial pronotal setae : occasionally one or two h.s. 

 Post-tergites very small, without striations and without setae. Pleural structures typical of the 

 family. Sternum with transverse ridge strong, median ridge reduced to a short basal stalk and 

 triangular sclerite bearing numerous small projections. A nteprosternal setae absent ; prosternal 

 setae : 5-1 1 (average 7-8) f.s. and 0-2 (average 0-9) h.s., the setae not occurring in front of 

 spiracles. 



Mesothorax. Mesoprephragma with shallow emargination. Prescutum about twice as wide 

 as long (average 171 and 90 jx respectively) ; anterior margin almost straight ; laterally bounded 

 by the prescutal ridges and posteriorly by the prescutal suture ; slightly more heavily sclerotized 

 medially but not reticulated. Scutum. Median membranous area subrectangular ; 61-80 

 (average 70) y. long and 2-10-2-88 (average 2-51) times as wide (width 156-179, average 171 (z) ; 

 with 3-15 (average 6-6) f.s. and 7-15 (average 12) h.s. Scutellum 53-80 (average 70) (x long 

 and 144-175 (average 163) jx wide, the ratio being 1 : 2-1-2-9 (average 24) ; not tubular. 

 Postnotum with anterior margin irregular and usually partly overlapped by metathoracic fold ; 

 postnotal apophysis and postalare well developed, the latter densely reticulated distally. Meso- 

 postphragma with deep emargination. Mesopleuron. Mesopleural ridge strong, not interrupted 

 above coxal articulation ; pleural apophysis and pleural wing process well developed, the latter 

 connected with episternum by a narrow basalare. Subalare small. Episternum not reticulated; 

 subepisternal ridge well developed, but below membranous cleft indistinct and only marked by 

 a band of dark sclerotization. Epimeron small. Lateropleurite partly bound anteriorly by 

 an extension from marginal ridge. Basisternum large, about 253 u. wide and 162 u. long, i.e. 

 2-00-2-63 (average 2-33) times longer than membranous area of scutum ; median ridge almost 

 completely absent, represented by somewhat darker sclerotization medially which sometimes 

 appears ridge-like over short distances ; bounded by strong marginal and precoxal ridges ; 

 without setae. Furca well developed. Mesothoracic spiracle with well developed peritreme ; 

 postmesospiracular setae : 20-28 (average 24) f.s. and 0-3 (average 1) h.s., arranged in a band 

 behind the spiracles and presternum. Tegula small, membranous bulge with a weak sclerite 

 posteriorly, with 2-6 (average 4-2) h.s. and occasionally one f.s. Third axillary wing sclerite 

 with a small ventral projection at its base. Additional sclerite well defined. Antemetaspiracular 

 setae : 1-6 (average 3-8) f.s. 



Fig. 30. Inglisia theobromae (Newst.), lateral view. 



