86 



BURMEISTER S OBONATA. 



pin-label " L. auristigma * Br. Teneriffa'' in Hagen's handwriting ; 

 both have the printed label "Wintheni". These two males are 

 apparently of the same species and their description follows. Under 

 the column "Old % " only the differences from the younger % are 

 noted. 



(Younger % ) 



Vertex, lips and face luteous, inclining to greenish 

 above. Vertex distinctly bifid, tips acute. 



Occiput and rear of the head luteous, the former 

 darker. 



Anterior and middle lobes of prothorax brown, 

 their anterior margins and a middle dorsal spot 

 yellow. Posterior lobe of equal width with the 

 middle lobe, luteous, its hind margin entire. 



Thorax greenish-luteous with the following dark 

 brown stripes: two antehumeral, a humeral, a mese- 

 pimeral, and a metepisternal (at the si)iracle). The 

 two antehumerals unite above, the second also with 

 the humeral below. Between the humeral and the 

 mesepimeral is a cream-colored stripe which, like the 

 dark brown stripes, becomes less defined above. 

 Latero-ventral metathoracic carina black. 



Legs luteous, apices of all the femora and inferior 

 surfaces of the second and third, third tibife and 

 inferior surfaces of first and second, tarsi, blackish. 

 Hind tibia with 8 (outer) 12 (inner row) spines. 



.Abdomen viewed from above widest at 2 (2.6 mm.), 

 narrowest at base of 4 (1.3 mm.) widening to apex of 

 6 (2 mm.), narrowing to 10 (1.5 mm.) ; strongly com- 

 pressed at base. Luteous, caringe, articulations, lat- 

 eral margins of 4-9, 10 almost entirely, black. Slight 

 pruinoseness on 3. 



Superior appendages as long ks 9, blackish, of the 

 shape usual in Orthetrnm, with a row of 7 denticles 

 below. Inferior appendage i shorter, luteous with 

 black margins, reaching to the la.st denticle of the 

 superiors, shaped as usual. 



Genitalia of 2 ditficult to examine. Anterior lamina 

 slightly more prominent than the other pieces, its 

 anterior surface, viewed in profile, slightly and regu- 

 larly convex; tip emarginate. Hannile bifid at apex, 

 branches subequal in length, anterior branch without 

 any hook at tip, straight, blunt: posterior branch 

 about three times thicker (seen in profile), tip rounded. 

 Genital lobe projecting equally with the anterior 

 hamular branch, subquadrate (viewed in profile), an- 

 tero-posterior dimension greater than dorso-ventral. 

 (PI. I, fig. 11). 



(Old I) 

 Dark olive on the great- 

 er part of the frons, lab- 

 rum yellow unspotted. 



All these somewhat ob- 

 scured and partly cov- 

 ered with pruinose. 



6 (outer) 12 (inner). 



3 mm. 



1.8 mm. 



2.4 mm., 1.5 mm. 



pruinose on 1-3, black 

 on 4-10 dorsally. . 



7-9 denticles. 

 J shorter. 



Penis partly project- 

 ing, parts as described, as 

 far as visible. 



