8 STUTTGARTER BEITRAGE ZUR NATURKUNDE Ser. A, Nr. 622 
11 12 

Figs 11-18. Diatrichalus spp., male genitalia. - 11. D. cerberus; - 12-13. D. tenimberensis; - 
14. D. sedlacekiae sp. n.; - 15. D. cerberus; — 16. D. tenimberensis; - 17. D. wau- 
ensis sp. n.;— 18. D. mancus. — Scales: 0.5 mm. 
projected, lateral margins elevated, with apparent projections at basal third, surface 
shining, densely pubescent. Elytra flat, with costa 1 reaching one fourth of the ely- 
tral length, primary costae 2-4 strong, costa 3 slightly shortened, secondary costae 
weak, transverse costae forming quadrate cells. Male genitalia robust, phallus 
opened ventrally (Fig. 27). 2. Unknown. 
