94 EUMASTACIX^. 



Group IV. ERUCIINI. 



Genus MASTACIDES. 



Mastackles, Burr, Ann. Soc. Espafi. xxviii, 1899, pp. 89, 94, 111 ; 

 id., Gen. Ins., Ortli. Eumast. 190o, pp. 10, 11 ; Bolivar, Ann. Soc. 

 Ent. France, Ixx, 1902, p. 586; Saussure, Rev. Suisse Zool. xi 

 1903, p. 86. 



Type, 31astacides pupceformis, Burr. 



Range. South India. 



Head obliquely ascending ; frontal ridge between the antennse 

 very narrow, sulcated ; fastigium of the vertex very slightly 

 raised, front sloping, carinated ; antennae very short ; eyes I'ound, 

 prominent, Pronotum truncated in front, with a very slight median 

 carina indented behind. Tegmina rudimentary, wings wanting. 

 All the femora thickened ; the four front tibia? with three small 

 spines on each side ; hind femora slightly denticulated above, 

 first joint of hind tarsi spiny on the outer margin. Abdomen 

 slender, carinated, with the last segment expanded in the male into 

 a large subgeniial lamina ; the supra-anal lamina lobate. In the 

 female the upper and lower lamina? are long, slender, and entire. 



Key to the Species. 



1 (4) Vertex simple. 



2 (3) Carinpe of vertex slightly raised .... pupcefonnis, Burr, p. 94. 

 a (2) Carinte of vertex not raised pterolepis, Burr, p. 95. 



4 (1) Vertex with two slight elevations. . vaginalis, Sauss., p. 95. 



107. Mastacides pupseformis. Burr. 



Mastacides p)up(pformis, Burr, Ann. Soc. Espan. xxviii, 1899, pp. 89, 

 91, 112; Bolivar, Ann. Soc. Ent. France, Ixx, 1902, p. 587, 

 pi. ix, fig. 27. 



Pubescent, green, front yellow. Carina of the vertex slightly 

 raised; eyes black; antennae reddish, except the basal joint. 

 Pronotum uith the outer margin slightly waved. Tegmina very 

 narrow, as long as the metauotum, yellow, with or without a 

 brown line. Hind femora reddish on the inner side ; hind tibiae 

 ver}'^ narrow, pilose, with black-tipped spines ; first joint of hind 

 tarsi spined on the inner side only. Abdomen with the last dorsal 

 segment deeply cleft in the male, and divided into two lobes 

 sinuated on their inner side ; supra-anal lamina of the male 

 large, broad, oblong, sinuated on both sides at the tip, and sul- 

 cated in the middle; in the female it is lanceolate; subgenital 

 lamina in male large, cucullated, with the hind margin truncated, 

 tin-ned up and thickened ; subgenital lamina of female deeply 

 excised. 



Length 12-16 mm. ; pronotum, 1*8-2 mm. ; hind femur, 9- 

 10 mm. 



Madras : Kodaikanal. 



Tgpe in the collection of Dr. Bolivar. 



