SCALLAlSrA. 263 



Genus SCALLAMA, Cam. 

 S'ca/ldina, Cameron, Mancli. Mem. 1899, p. 216. 

 Genotype, S. triUneata, Cam. 



Plead distinctly contracted behind the large and internally 

 vstrongly emargiuate eyes ; cheeks distinct, clypeus not discrete ; 

 mandibles with a single somewhat elongate apical tooth palpi 

 short and incrassate. Antenna) short and stout, with the third 

 joint elongate and nearly double length of the fourth. Thorax 

 with notauli wanting; mesopleurge distinctly prominent centrally, 

 with an oblique slope at both base and apex ; nietathorax with 

 lateral carinaj only ; spiracles ohlique, elongate and rounded at 

 both extremities. Scutellum deplanate, laterally immarginate 

 and apicall)^ gradually constricted ; postscutellum large, glabrous, 

 deplanate and apically depressed. Petiole basally dilated, becom- 

 ing gradually broader throughout to apex, with the spiracles 

 small, circular and subbasal ; remaining segments deplanate. 

 Legs short and incrassate, with the femora inflated ; posterior 

 tibia) bicalcarate, hind calcaria large, with the exterior calcar 

 lanceolate, slightly curved and much the longer ; hind tarsi densely 

 setulose, their claws large, basally incrassate and apically acumi- 

 nate. Areolet wanting or small, oblique and not longer than its 

 petiole, emitting the second recurrent nervure shortly beyond its 

 centre ; basal nervure not continuous. 



Range. Assam. 



Its author says (loc. cit.) that this genus " comes near Metopius 

 and Bassus in some respects — in the thickened legs for instance — 

 but differs from them in the abdomen not being so broad at the 

 base. Its characteristics are the thickened legs, the mesothorax 

 dilated in the middle, the large flat scutellum, and the distinctly 

 petiolated areolet. The genus contains two sections. One 

 represented by S. triUneata., having a distinct appendiculated 

 areolet, and a keel outside the metapleural spiracles ; the other 

 represented by S. crassipes, having no areolet and a keel on the 

 outer and inner side of the spiracles. Unfortunately I have no 

 females, both the species being represented by males." 



I have seen both types of this genus and find it to be inter- 

 mediate between the present tribe and the Exochidks. 



Table of Species. 



1 (2) Mesopleurae punctate : areolet distinct ; thorax 



partly red triUneata, Cam. 



2(1) Mesopleuraiimpunctate; areolet obsolete; thorax 



black a-assipes, Cam. 



1S4. Scallama trilineata. Cam. 



iScallama trilineata, Cameron,* Manch. Mem, 1899, p. 217 {S)- 

 S . A fulvous species with black n)arkings and the areolet entire. 



