198 MEMOIES OF THE QUEENSLAND MUSEUM. 



Gnathoprosopis hackeri Cockerell. 



The female runs in my table in Ann. Mag. Nat. Hist., Feb. 1910, p. 137, to 

 35, and runs out because the clypeus is wholly black and the lateral face-marks are 

 pale lemon-yellow, contrasting wdth the deep orange-chrome of the prothorax. The 

 legs are black, with the anterior tibiae pallid in front, and the hind tibiae cream- 

 coloured at base. 



The following key contrasts the male of G. Jmckeri with those of two other 

 recently described species : — 



Scape greatly swollen, mandibles pale . . . . . . . . . . . . rowlandi Ckll. 



Scape ordinary . . . . • . • • • • • ■ • • • • - • • • . . 1. 



1. Maiid-'bles black, face broader hackeri Ckll. 



Mandibles yellow, face narrower . . . . . . . . . . - . • • euxantha Ckll. 



Gnathoprosopis amicula (Smith). 



The male is close to G. asinella (Ckll.), but the colour of the face agrees with 

 that of Prosopis primulipicta, and the tegulse are wholly dark. Both this and amiculi- 

 formis run out at primulipicta in the table just cited, but they differ conspicuously as 

 follows : — 



Face dull ; femora (except basal half of hind ones), tibise, and tarsi wholly bright yellow . . 



amicula Sm. 

 Face shining ; legs with much less yellow . . . . . . . . • - amiculijormis Ckll. 



The male amicula agrees with asinella in having the abdomen beneath with- 

 out tubercles or ridge. 



Prosopis eburniella Cockerell. 

 The female differs by having the clypeus, supraclypeal area, and hind tarsi 

 whoUy black. In the Brisbane female the lateral face-marks have the upper inner 

 side distinctly longer than the lower, and are whiter than those of the male. The 

 male is from Sydney, and it is quite possible that when both sexes have been collected 

 in both locaUties the Brisbane insect will be found to be subspecifically distinct. 

 Euryglossa albocuneata Ckll., which is hardly a true Euryglossa, seems to be somewhat 

 related to P. eburniella. 



Prosopis melanops n.sp. 



2 . Length about 7 mm. ; black, with the tubercles and an extremely heavy 

 callus over the prothorax (separated from tubercles by a sUght interval) very bright 

 orange-chrome ; face entirely black ; flagellum, except basally, ferruginous 

 beneath ; clypeus duU and sericeous ; front very distinctly punctured ; mesothorax 

 extremely finely and closely punctured ; scutellum shining, with the minute punctures 

 more separate ; basal area of metathorax ill-defined, without distinct sculpture, the 

 margin of the apical truncation shining ; tegulse piceous ; wings dilute fuHginous or 

 pale brownish, second submarginal cell long, receiving both recurrent nervures ; legs 

 black, middle tibise and tarsi with shining pale hair on inner side ; abdomen duhish, 

 the punctures excessively minute. 



Hah. : Caloundra, Queensland, Sept. 28, 1913 {Hacker). Related to P. flavo- 

 jugata and P. kelvini, but known by the entirely black face. The following table 

 separates the females of the three sjaecies : — 



First abdominal segment very smooth and polished, contrasting with the others, which are 

 suffused with blue fiavofugata Ckll. 



First segment not thus polished, and the others not at all blue . . . . . . . . 1. 



