Two News Species of Psyllids Genus Syntomoza (Hemiptera: Liviidae) Pest Insects Associated with Flacourtia Indica (Flacourtiaceae) in Cameroon

Background: Psyllids mainly through their larvae which suck sap from their host plants can be harmful by causing the transmission of diseases through their saliva. Objective: The aim of this study was to describe the news species of psyllids genus Syntomoza pest insects associated with Flacourtia indica (Flacourtiaceae). Methods: Psyllids specimens were collected using an entomological net and a mouth aspirator. The specimens were preserved in 70% ethanol, mounted on slides. Identifications, measurements and illustrations were made using a Microscope. Results: Syntomoza biniae sp. nov., have vertex sub-rectangular without foveae; male proctiger in profile, with lateral lobe large, broadly rounded in the middle, narrowed apically, obliquely truncate at apex; paramere with apical region narrow curved forward bearing two short black thick spine oriented inwards; inner face with a conspicuous fold anteriorly extending obliquely toward apex; distal segment of aedeagus almost curved in basal half, dorsal margin weakly sinuate; female subgenital plate in lateral view subtriangular, very enlarged at the base with distinct hump; dorsal and ventral valvulae slightly curved dorsally. Fifth instar larvae, with antennal segments with following numbers of pointed setae: 1(0), 2(0), 3(2), 4(0), 5(1), 6(0), 7(2); dorsum of caudal plate bearing scarcely arranged small sharp cuticular teeth; anus ventral, surrounded by only outer circumanal pore ring. Syntomoza flacourtiae sp. nov., with male proctiger in profile medially with well-developed, broadly rounded posterior expansions, rather with two pits, one at base and other at apex, narrowed apically, apical margin rounded; paramere is rather with bulging posterior margin on one-third basally, anterior margin incurved, inner face covered with two row of eight stouter setae situated along anterior margin medially; circumanal ring oval to pear shaped. In fifth instar larvae: antenna segments 3 and 5 without numbers of pointed setae; forewing pad with a row of seven marginal long lanceolate; abdomen on all dorsum surface bearing lanceolate setae and additional like-scaly setae; anus terminal, without additional pore fields. Damage caused by Syntomoza spp. includes distortion and winding of the lateral edges of young leaves. Conclusion: Taxonomic studies indicated that, Syntomoza biniae sp. nov. and Syntomoza flacourtiae sp. nov. are the news species of Liviidae family described from Adamawa Region of Cameroon.