34 



CATALOGUE OF 



Div. 3. 

 Centroraelus, Fieb. Eur. Hem. 151. 



4. Pygolampis spinosissima. 



Pygolampis spinosissima, Kol.3Iel.Ent. vi. 51— Centromelus spinosissi- 

 mus, Fieb. Eur. Hem. 151. 



Caucasus. 



Div. 4. 



Pnirontis, Stal, Ofv. K. V. Ah Fork. xvi. 381. 



The species of Pygolampis which Prof. Stal includes in Pnirontis are 

 thus distributed by him: — 



A. Apical angles of the fifth abdominal segment prolonged 



and forming a slightly rounded lobe; sixth segment 

 in the male slightly widened hindward, truncate at 

 the tip ; apical angles forming a rounded lobe, 

 which is scarcely narrowed towards the tip. 

 Pnirontis, Slat. .... - scutellaris. 



B. Abdomen distinctly narrowed hindward at the tip in both 



sexes ; angles of the fifth segment not prolonged ; last 

 dorsal segment acutely notched at the tip in the male, 

 bilobed, the lobes perceptibly narrowed towards the 

 lip. Centromelus, Fieb. 



a. Fore tibiae armed on the inner side in front with three or 



four, or at least with two, very long teeth, unarmed 

 on the outer side, with a tooth beneath near the tip. 



* First joint of the antennae unarmed beneath, about as 

 long as the head. Head having in front between the 

 antenna; two slender contiguous spines, which extend 

 somewhat beyond the antenniferous tubercles. - languida. 



** First joint of the antennae spiny beneath. 



f Connexivum unspotted. Head with one spine between 



the antennae. 

 I First joint of the antennae (with the apical process) longer 

 than the head and hardly shorter than the prothorax, 

 about equal (without the apical process) in length to 

 the head. Head distinctly shorter than the prothorax ; 

 cheeks very little prolonged, slightly prominent in 

 front of the antenniferous tubercles. - - tabida. 



|} First joint of the antennae (with the apical process) shorter 

 by about one-third than the head. Head a little 

 shorter than the prothorax; cheeks much prolonged. pallcseens. 



f | Connexivum spotted. ----- infirma. 



b. Fore tibiae with three long spines on the inner side, with 



two on the outer side. .... serripes. 



